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  1. #1
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    Default ? for GM techs.

    Hey guys , need a bit of help. I just pulled the GM Shortstar motor out of my baja bug. I'm going to install new bearings and seals in it. The problem is, I can't find any info on this motor at all. I've looked all over the internet sites, and no luck. I'm looking for rod and main clearances, and torque specs. Any help would be appreciated. I'm hoping to have it buttoned up by next weekend, so I can get it back in the car.




    Darrell.
    San Diego.

    28ft Sportcat
    With Twins

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  3. #2
    Senior Member shan's Avatar
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    Quote Originally Posted by DMOORE View Post
    Hey guys , need a bit of help. I just pulled the GM Shortstar motor out of my baja bug. I'm going to install new bearings and seals in it. The problem is, I can't find any info on this motor at all. I've looked all over the internet sites, and no luck. I'm looking for rod and main clearances, and torque specs. Any help would be appreciated. I'm hoping to have it buttoned up by next weekend, so I can get it back in the car.




    Darrell.
    By shortstar do you mean the V-6? Or is it a 4.0L or 4.6L V8?
    Last edited by shan; 10-18-2008 at 07:46 AM.

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    Senior Member Marcsrollin's Avatar
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    I would try asking a local engine builder! I know a couple in san diego if you need some phone numbers!
    No matter how good she looks , someone is tired of her shit!

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    Quote Originally Posted by shan View Post
    By shortstar do you mean the V-6? Or is it a 4.0L or 4.6L V8?

    Yea, the 3.5ltr V6. Simply can't find any info at all. Like Marcsrollin said, I might have to call a shop. Maybe on Monday, if I can't get any info, I'll call turnkey engines. I know they used to build them, when they were still in production.


    Darrell.
    San Diego.

    28ft Sportcat
    With Twins

  7. #5
    mo balls than $cents$ IMPATIENT 1's Avatar
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    Quote Originally Posted by DMOORE View Post
    Yea, the 3.5ltr V6. Simply can't find any info at all. Like Marcsrollin said, I might have to call a shop. Maybe on Monday, if I can't get any info, I'll call turnkey engines. I know they used to build them, when they were still in production.


    Darrell.
    shortstar, lol, never herd em called that. they put the 3.5l in olds intrigues as well between 99-02, you could look up specs for that, there's no variation i've ever herd of in the older 3.5liters. the newer 3.4 and 3.5 liters are based on the gm 3.1liter they've put in a shitload of cars since early 90's. if the 3.5 liter you have has the same look as the northstar cadillac motor, then i;m pretty sure the olds intrigue specs are right. check into it anyways.

  8. #6
    Senior Member shan's Avatar
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    I can't get to it from home, but if you can wait until Monday I can access the manuals from work.

  9. #7
    mo balls than $cents$ IMPATIENT 1's Avatar
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    Quote Originally Posted by shan View Post
    I can't get to it from home, but if you can wait until Monday I can access the manuals from work.
    if your a gm tech, you know you login and password to dealer world. dealer world can be accessed anytime, not just from work just go to gm dealer world, put in your info


    here's the specs and tightening info on the lil 3.5l you may have, this is the specs for the 02 intrigue 3.5l that looks like a mini northstar motor.

    2002 Oldsmobile Intrigue | Intrigue (VIN W) Service Manual | Engine | Engine Mechanical - 3.5L | Specifications | Document ID: 243684
    --------------------------------------------------------------------------------

    Engine Mechanical Specifications
    Application
    Specification

    Metric
    English

    General

    Engine Type
    V-6

    Displacement
    3.5 Liter
    212 cu in

    RPO
    LX5

    VIN ID
    H

    Bore
    89.5 mm @ 39 mm from deck surface
    3.523 in @ 1.56 in from deck surface

    Stroke
    92 mm
    3.622 in

    Compression Ratio
    9.3:1

    Compression Pressure at Cranking Speed (Throttle Open)
    965-1172 kPa
    140-170 psi

    Power
    160 kW @ 5600 RPM
    215 hp @ 5600 RPM

    Torque
    317 Nm @ 4400 RPM
    234 lb ft @ 4400 RPM

    Redline
    6500 RPM

    Fuel Shutoff
    6700 RPM

    Firing Order
    1-2-3-4-5-6

    Balance Shaft

    Bearing Clearance
    0.015-0.077 mm
    0.0006-0.0030 in

    Bearing Journal Diameter
    50.787-50.813 mm
    1.9995-2.0005 in

    Bearing Diameter
    50.838-50.864 mm
    2.001-2.0025 in

    Thrust Plate to Balance Shaft Clearance
    0.068-0.170 mm
    0.0027-0.0067 in

    Camshaft

    Material
    Cast Ductile Iron with Hardened Lobes

    Number of Bearings
    4

    Bearing Journal Diameter
    26.948-26.972 mm
    1.061-1.062 in

    Bearing Bore Diameter (In Head)
    27.013-27.033 mm
    1.0635-1.0642 in

    Bearing Clearance

    New Limits
    0.041-0.085 mm
    0.0016-0.0033 in

    Worn Limits (Not Over)
    0.085 mm
    0.003 in

    Thrust Bearing Clearance to Number 1 Camshaft Cap
    0.05-0.29 mm
    0.002-0.011 in

    Out-of-Round (Not Over)
    0.007 mm
    0.0002 in

    Camshaft Runout from Center Journals to End Journals (Not Over)
    0.05 mm
    0.002 in

    Valve Timing

    Intake Centerline
    112 degrees ATDC

    Exhaust Centerline
    104 degrees BTDC

    Valve Lift

    Intake
    10.5 mm
    0.413 in

    Exhaust
    10.0 mm
    0.394 in

    Camshaft Drive

    Primary Drive Type
    Endless Chain

    Adjustment
    Hydraulic Pressure (Automatic)

    Pitch
    8 mm
    0.315 in

    Width
    12.3 mm
    0.484 in

    Secondary Drive Type
    Endless Chain

    Adjustment
    Hydraulic Pressure (Automatic)

    Pitch
    8 mm
    0.315 in

    Width
    12.3 mm
    0.484 in

    Connecting Rods

    Connecting Rod Material
    Forged Powdered Metal

    Bearing Material
    Aluminum

    Clearance Between Bearing and Crankshaft

    New Limits
    0.025-0.057 mm
    0.0009-0.002 in

    Worn Limits (Not Over)
    0.065 mm
    0.0025 in

    Lower End Diameter without Bearing
    59.134-59.154 mm
    2.328-2.329 in

    Piston Pin Bore Diameter without Bushing
    23.453-23.493 mm
    0.923-0.925 in

    Center to Center Length
    153.4 mm
    6.039 in

    Side Clearance on Crankshaft
    0.11-0.33 mm
    0.004-0.013 in

    Crankshaft and Crankshaft Bearings

    Crankshaft Material
    Cast Ductile Iron with Undercut and Rolled Fillets

    Main Bearing Clearance Limit -- New Limit
    0.017-0.047 mm
    0.0006-0.0018 in

    Main Bearing Clearance Limit -- Worn Limit
    0.055 mm
    0.0021 in

    Main Bearing Journal Diameter
    69.994-70.006 mm
    2.755-2.756 in

    Main Bearing Journal Out-of-Round (Not Over)
    0.004 mm
    0.00016 in

    Main Bearing Journal Taper
    0.004 mm
    0.00015 in

    Main Bearing Journal Length -- No. 1
    23.75 mm
    0.9350 in

    Main Bearing Journal Length -- No. 2
    24.00 mm
    0.9449 in

    Main Bearing Journal Length -- No. 3
    25.50 mm
    1.0039 in

    Main Bearing Journal Length -- No. 4
    24.00 mm
    0.9449 in

    Crankpin Journal Diameter
    55.448-55.462 mm
    2.1829-2.1835 in

    Maximum Crankpin Journal Out-of-Round
    0.004 mm
    0.00016 in

    Maximum Crankpin Journal Taper
    0.004 mm
    0.00016 in

    End Play in Crankshaft -- New Limits
    0.13-0.37 mm
    0.005-0.014 in

    End Play in Crankshaft -- Worn Limits
    0.5 mm
    0.020 in

    Flywheel Pilot Runout
    0.025 mm
    0.001 in

    Rear Crankshaft Seal Diameter
    95.88-95.98 mm
    3.77-3.78 in

    Cylinder Block

    Material
    Aluminum with Gray Iron Cast-in Sleeves

    Bore
    89.5 mm @ 41 mm from deck surface
    3.523 in @ 1.614 in from deck surface

    Stroke
    92 mm
    3.622 in

    Bore Spacing - Centerline to Centerline
    102.0 mm
    4.016 in

    Deck Height
    228.0 mm
    8.976 in

    Deck Clearance
    0.60 mm Below Deck
    0.0236 in Below Deck

    Length
    442.65 mm
    17.427 in

    Piston Clearance @ 41 mm (1.614 in) from Deck Face
    0.028-0.062 mm
    0.001-0.0025 in

    Deck Face Flatness - Maximum (No Resurfacing Allowed)
    0.101 mm
    0.004 in

    Cylinder Bore Out-of-Round

    New
    0.010 mm
    0.0004 in

    Maximum Allowed
    0.100 mm
    0.004 in

    Cylinder Bore Taper

    New
    0.010 mm
    0.0004 in

    Maximum Allowed
    0.100 mm
    0.004 in

    Crankshaft Bearing Bore (Mains), Diameter
    78.073-78.085 mm
    3.0737-3.0742 in

    Crankshaft Rear Seal Bore, Diameter
    115.962-116.038 mm
    4.5654-4.5684 in

    Runout - Maximum Allowed
    0.250 mm
    0.0098 in

    Cylinder Head

    Type
    DOHC--4 Valves Per Cylinder

    Material
    Aluminum

    Combustion Chamber Volume
    56.0 cc
    3.417 cu in

    Cylinder Head Flatness Maximum Without Resurfacing
    0.05 mm
    0.002 in

    Worn Limit
    0.20 mm
    0.008 in

    Valves

    Valve Stem to Guide Clearance, New Limits -- Intake (Constant Top to Bottom)
    0.028-0.068 mm
    0.001-0.003 in

    Valve Stem to Guide Clearance, New Limits -- Exhaust (Constant Top to Bottom)
    0.028-0.068 mm
    0.001-0.003 in

    Intake Worn Limits (Not Over)
    0.068 mm
    0.003 in

    Exhaust Worn Limits (Not Over)
    0.068 mm
    0.003 in

    Head Diameter

    Intake
    36.2 mm
    1.42 in

    Exhaust
    28 mm
    1.10 in

    Valve Face Angle
    45 degrees

    Valve Seat Angle (In Head)
    45.75 degrees

    Valve Seat Width (In Head)

    Intake
    0.420-0.820 mm
    0.0165-0.0322 in

    Exhaust
    1.300-1.700 mm
    0.0511-0.0668 in

    Seat Eccentricity Runout, Maximum (In Head)
    0.05 mm
    0.002 in

    Valve Face Runout
    0.038 mm
    0.0014 in

    Valve Margin

    Intake
    0.900 mm
    0.0354 in

    Exhaust
    1.100 mm
    0.0432 in

    Stem Diameter - Intake and Exhaust
    5.920-5.941 mm
    0.2331-0.2339 in

    Valve Guide Diameter (In Head)
    5.969-5.989 mm
    0.2350-0.2358 in

    Valve Length

    Intake
    110.60-110.86 mm
    4.354-4.364 in

    Exhaust
    91.73-91.99 mm
    3.611-3.621 in

    Oil System

    Oil Pump Type
    Gerotor

    Minimum Pressure at Normal Operating Temperature @ Idle
    55 kPa
    8 ps

    Minimum Pressure at Normal Operating Temperature @ 2000 RPM
    200 kPa
    29 psi

    Oil Pressure Recirculation
    Internal Piston Valve

    Oil Filter Type
    Cartridge - Integral to Oil Pan

    Oil Capacity with Filter
    5.678 L
    6 Quarts

    Piston Rings - Clearance Between Rings and Sides of Groove in Piston

    Compression Rings
    0.040-0.095 mm
    0.0016-0.0037 in

    Oil Rings
    None--Side Sealing

    Piston Rings - Gap Between Ends

    Top Compression Ring
    0.25-0.40 mm
    0.010-0.016 in

    Second Compression Ring
    0.35-0.50 mm
    0.014-0.020 in

    Oil Rings
    0.25-0.76 mm
    0.010-0.030 in

    Number of Compression Rings
    2

    Number of Oil Rings
    2 Rails - 1 Expander

    Piston Rings - Width of Groove Ring

    Top Ring
    1.230-1.255 mm
    0.048-0.049 in

    Second Ring
    1.530-1.555 mm
    0.060-0.061 in

    Oil Ring
    2.530-2.555 mm
    0.099-0.100 in

    Pistons

    Piston Material
    Aluminum

    Piston Clearance @ 38 mm (1.496 in) from Top of Piston
    89.446-89.464 mm
    3.521-3.522 in

    Piston Pin Diameter
    20.995-21.000 mm
    0.8265-0.8267 in

    Piston Pin Bore Diameter
    21.004-21.011 mm
    0.8269-0.8272 in

    Piston Pin to Piston Clearance
    0.004-0.016 mm
    0.0001-0.0006 in

    Pin Retention
    Snap Rings (2)

    Rocker Arms (Followers)

    Type
    End Pivot Roller

    Ratio
    1.68 to 1

    Roller Diameter
    17.740-17.800 mm
    0.6984-0.7008 in

    Valve Lifters

    Type
    Stationary Hydraulic

    Diameter
    11.979-11.993 mm
    0.4716-0.4721 in

    Lifter Bore Diameter (In Head)
    12.008-12.030 mm
    0.4727-0.4736 in

    Clearance
    0.037-0.041 mm
    0.0014-0.0016 in

    Valve Springs

    Length Installed
    35 mm
    1.3780 in

    Free
    40.790-43.690 mm
    1.6059-1.7201 in

    Valve Closed
    35 mm
    1.3780 in

    Valve Open

    Intake
    24.500 mm
    0.9646 in

    Exhaust

  10. #8
    mo balls than $cents$ IMPATIENT 1's Avatar
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    man, that was a big post here's tightening specs:

    Fastener Tightening Specifications
    Application
    Specification

    Metric
    English

    Balance Shaft Cover Bolt
    12 Nm
    106 lb in

    Camshaft Bearing Cap Bolt

    First Pass
    8 Nm
    71 lb in

    Final Pass
    22 degrees

    Camshaft Cover Bolts
    9 Nm
    80 lb in

    Camshaft Sprocket Bolt

    First Pass
    25 Nm
    18 lb ft

    Final Pass
    45 degrees

    Coolant Drain Plug

    Engine Block
    14 Nm
    124 lb in

    Front Cover
    10 Nm
    89 lb in

    Coolant Outlet Assembly Bolt
    24 Nm
    18 lb ft

    Crankshaft Balancer Bolt

    First Pass
    50 Nm
    37 lb ft

    Final Pass
    150 degrees


    Cylinder Head Bolt (M11) (In Sequence)

    First Pass
    40 Nm
    30 lb ft

    Second Pass
    100 degrees

    Final Pass
    100 degrees

    Cylinder Head Bolt (M6)

    Long
    12 Nm
    106 lb in

    Short
    12 Nm
    106 lb in

    Cylinder Head Water Jacket Hole Plug
    80 Nm
    59 lb ft

    Drive Belt Idler Pulley/Generator Bolt
    50 Nm
    37 lb ft

    Drive Belt Tensioner Bolt
    50 Nm
    37 lb ft

    EGR Pipe

    Intake Manifold Bolt
    10 Nm
    89 lb in

    Water Crossover Bolt (Same for Both Pipes)
    24 Nm
    18 lb ft

    Engine Front Cover Bolt
    14 Nm
    124 lb in

    Engine Mount Bracket Bolt Front/Rear
    58 Nm
    43 lb ft

    Engine Mount Nut
    47 Nm
    35 lb ft

    Engine Mount Strut Bracket To Engine
    50 Nm
    37 lb ft

    Engine Mount Strut Bracket To Radiator Support
    28 Nm
    21 lb ft

    Engine Mount Strut Bolt
    48 Nm
    35 lb ft

    Engine to Transaxle Mounting Bolt
    75 Nm
    55 lb ft

    Engine Wiring Harness Channel Bolt
    10 Nm
    89 lb in

    Fuel Injector Sight Shield Bracket Bolt
    8 Nm
    71 lb in

    Fuel Injector Sight Shield Nut
    3 Nm
    27 lb in

    Flywheel Bolt

    First Pass
    15 Nm
    11 lb ft

    Final Pass
    50 degrees


    Ignition Coil Pack Bolt
    9 Nm
    80 lb in

    Intake Manifold Bolt/Stud
    7 Nm
    62 lb in

    Lift Bracket

    Front - Bolt (Hex Head)
    50 Nm
    37 lb ft

    Front - Bolt (Internal TORX Drive)
    25 Nm
    18 lb ft

    Rear - Bolts
    50 Nm
    37 lb ft

    Oil Filter Cap
    25 Nm
    18 lb ft

    Oil Gallery Plug

    Cylinder Head
    55 Nm
    41 lb ft

    Lower Crankcase
    65 Nm
    48 lb ft

    Oil Level Indicator Tube Bolt
    9 Nm
    80 lb in

    Oil Level Switch
    9 Nm
    80 lb in

    Oil Pan Bolt
    25 Nm
    18 lb ft

    Oil Pan Drain Plug
    20 Nm
    15 lb ft

    Oil Pump Cover Bolt
    11 Nm
    97 lb in

    Oil Pump Suction Pipe to Lower Crankcase Stud -- Nut
    10 Nm
    89 lb in

    Oil Pump Suction Pipe to Oil Pump Bolt
    10 Nm
    89 lb in

    Oil Pump to Cylinder Block Bolt
    25 Nm
    18 lb ft

    Power Steering Pump to Cylinder Block Bolt
    25 Nm
    18 lb ft

    Primary Timing Chain

    Guide Access Plug
    5 Nm
    44 lb in

    Guide Bolt
    30 Nm
    22 lb ft

    Tensioner Bolt
    25 Nm
    18 lb ft

    Tensioner Shoe Bolt
    30 Nm
    22 lb ft

    Primary Timing Chain Oil Tube to Cylinder Block Bolt
    9 Nm
    80 lb in

    Secondary Timing Chain Tensioner Bolt
    12 Nm
    106 lb in

    Surge Tank Inlet Hose Bracket Bolt
    10 Nm
    89 lb in

    Torque Converter Cover Bolt
    9 Nm
    80 lb in

    Transaxle Brace Bolts
    25 Nm
    18 lb ft

    Water Crossover to Cylinder Head Bolt
    25 Nm
    18 lb ft

    Water Pump Bolt
    14 Nm
    124 lb in

    Water Pump Pulley Bolt
    12 Nm
    106 lb in

  11. #9
    Senior Member shan's Avatar
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    Quote Originally Posted by IMPATIENT 1 View Post
    if your a gm tech, you know you login and password to dealer world. dealer world can be accessed anytime, not just from work just go to gm dealer world, put in your info
    Well, I'm not a GM "tech". Hopefully, he got what he needed.

  12. #10
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    Impatient, thanks a bunch. I really appreciate all the info. I just printed all of it out for my records. I had looked everywhere for it, thanks. The only thing I could not find in the info you provided was the rod, and mains, torque specs. If there was any possibility you could pass it on, it would be much appreciated.




    Darrell.
    San Diego.

    28ft Sportcat
    With Twins

  13. #11
    Driver 78CoLeBBF's Avatar
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    what size bolts are the darrel arp web site gives specs per bolt size
    Its a FORD thing chevy's arent quick enough to understand

  14. #12
    mo balls than $cents$ IMPATIENT 1's Avatar
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    Quote Originally Posted by DMOORE View Post
    Impatient, thanks a bunch. I really appreciate all the info. I just printed all of it out for my records. I had looked everywhere for it, thanks. The only thing I could not find in the info you provided was the rod, and mains, torque specs. If there was any possibility you could pass it on, it would be much appreciated.




    Darrell.
    Tighten the lower crankcase bolts (1 through 16) in proper sequence.
    Tighten

    Tighten the lower crankcase bolts in sequence to 20 Nm (15 lb ft).
    Tighten the lower crankcase bolts in sequence an additional 70 degrees using the J 36660-A .




    Tighten the lower crankcase perimeter bolts (1 through 9) in proper sequence.
    Tighten
    Tighten the lower crankcase perimeter bolts in sequence to 30 Nm (22 lb ft).

    Attached Images Attached Images
    Last edited by IMPATIENT 1; 10-20-2008 at 06:59 AM.

  15. #13
    mo balls than $cents$ IMPATIENT 1's Avatar
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    rods:


    Important: DO NOT reuse the old connecting rod bolts.

    Lubricate the NEW connecting rod bolts with engine oil and install in the connecting rod.
    Tighten
    Tighten the NEW connecting rod bolts to 30 Nm (22 lb ft).

    Loosen the connecting rod bolts until the torque reading is zero.
    Re-tighten the connecting rod bolts.
    4.1. First Pass

    Tighten
    Tighten the connecting rod bolts to 25 Nm (18 lb ft).

    4.2. Final Pass

    Tighten
    Tighten the connecting rod bolts an additional 110 degrees using the J 36660-A .





    have your machinist check and make sure we're on the same page as far as what motor we're looking at

  16. #14
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    Impatient, you da man. Can't say how much I appreciate all the info. I just need to pull the balancer today (has to be removed to remove front engine cover) so I can get a look at all the bearings.


    Darrell.
    San Diego.

    28ft Sportcat
    With Twins

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