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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.
 

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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?
 

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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.
 

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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.
 

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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.
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:)bulb


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
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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 N·m @ 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
 

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man, that was a big post:D here's tightening specs:

Fastener Tightening Specifications
Application
Specification

Metric
English

Balance Shaft Cover Bolt
12 N·m
106 lb in

Camshaft Bearing Cap Bolt

First Pass
8 N·m
71 lb in

Final Pass
22 degrees

Camshaft Cover Bolts
9 N·m
80 lb in

Camshaft Sprocket Bolt

First Pass
25 N·m
18 lb ft

Final Pass
45 degrees

Coolant Drain Plug

Engine Block
14 N·m
124 lb in

Front Cover
10 N·m
89 lb in

Coolant Outlet Assembly Bolt
24 N·m
18 lb ft

Crankshaft Balancer Bolt

First Pass
50 N·m
37 lb ft

Final Pass
150 degrees


Cylinder Head Bolt (M11) (In Sequence)

First Pass
40 N·m
30 lb ft

Second Pass
100 degrees

Final Pass
100 degrees

Cylinder Head Bolt (M6)

Long
12 N·m
106 lb in

Short
12 N·m
106 lb in

Cylinder Head Water Jacket Hole Plug
80 N·m
59 lb ft

Drive Belt Idler Pulley/Generator Bolt
50 N·m
37 lb ft

Drive Belt Tensioner Bolt
50 N·m
37 lb ft

EGR Pipe

Intake Manifold Bolt
10 N·m
89 lb in

Water Crossover Bolt (Same for Both Pipes)
24 N·m
18 lb ft

Engine Front Cover Bolt
14 N·m
124 lb in

Engine Mount Bracket Bolt Front/Rear
58 N·m
43 lb ft

Engine Mount Nut
47 N·m
35 lb ft

Engine Mount Strut Bracket To Engine
50 N·m
37 lb ft

Engine Mount Strut Bracket To Radiator Support
28 N·m
21 lb ft

Engine Mount Strut Bolt
48 N·m
35 lb ft

Engine to Transaxle Mounting Bolt
75 N·m
55 lb ft

Engine Wiring Harness Channel Bolt
10 N·m
89 lb in

Fuel Injector Sight Shield Bracket Bolt
8 N·m
71 lb in

Fuel Injector Sight Shield Nut
3 N·m
27 lb in

Flywheel Bolt

First Pass
15 N·m
11 lb ft

Final Pass
50 degrees


Ignition Coil Pack Bolt
9 N·m
80 lb in

Intake Manifold Bolt/Stud
7 N·m
62 lb in

Lift Bracket

Front - Bolt (Hex Head)
50 N·m
37 lb ft

Front - Bolt (Internal TORX® Drive)
25 N·m
18 lb ft

Rear - Bolts
50 N·m
37 lb ft

Oil Filter Cap
25 N·m
18 lb ft

Oil Gallery Plug

Cylinder Head
55 N·m
41 lb ft

Lower Crankcase
65 N·m
48 lb ft

Oil Level Indicator Tube Bolt
9 N·m
80 lb in

Oil Level Switch
9 N·m
80 lb in

Oil Pan Bolt
25 N·m
18 lb ft

Oil Pan Drain Plug
20 N·m
15 lb ft

Oil Pump Cover Bolt
11 N·m
97 lb in

Oil Pump Suction Pipe to Lower Crankcase Stud -- Nut
10 N·m
89 lb in

Oil Pump Suction Pipe to Oil Pump Bolt
10 N·m
89 lb in

Oil Pump to Cylinder Block Bolt
25 N·m
18 lb ft

Power Steering Pump to Cylinder Block Bolt
25 N·m
18 lb ft

Primary Timing Chain

Guide Access Plug
5 N·m
44 lb in

Guide Bolt
30 N·m
22 lb ft

Tensioner Bolt
25 N·m
18 lb ft

Tensioner Shoe Bolt
30 N·m
22 lb ft

Primary Timing Chain Oil Tube to Cylinder Block Bolt
9 N·m
80 lb in

Secondary Timing Chain Tensioner Bolt
12 N·m
106 lb in

Surge Tank Inlet Hose Bracket Bolt
10 N·m
89 lb in

Torque Converter Cover Bolt
9 N·m
80 lb in

Transaxle Brace Bolts
25 N·m
18 lb ft

Water Crossover to Cylinder Head Bolt
25 N·m
18 lb ft

Water Pump Bolt
14 N·m
124 lb in

Water Pump Pulley Bolt
12 N·m
106 lb in
 

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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:)bulb
Well, I'm not a GM "tech".:)hand Hopefully, he got what he needed.
 

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Discussion Starter #10
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.
 

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

Tighten the lower crankcase bolts in sequence to 20 N·m (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 N·m (22 lb ft).

 

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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 N·m (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 N·m (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;)
 

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Discussion Starter #14
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.
 

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Discussion Starter #15
what size bolts are the darrel arp web site gives specs per bolt size

I wasn't sure. Didn't want to pull anything apart until I had the specs to put it together again.:) My luck, I'd just have a pile of parts in the garage with no specs to put them back together.



Darrell.
 

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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.
no prob brother, if its not the right engine, let me know and we'll see what else i can find. i really don't know of another 3.5liter motor till 06-08, and they don't look anything like a northstar caddy motor.
 

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Discussion Starter #17
It's the right engine for sure. The "shortstar" is basically a one off engine with family traits from both the Northstar, and the Arora. It's a great little motor, lite weight (my son and I lifted it up to put on the engine stand) and the way thisd one is set up, it's around 300hp, not bad for a small package. It may get a turbo system this winter.It's been replace with the new direct injected 3.6 that's in the Caddy cts, so parts (or info LOL) isn't always easy to find.



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Discussion Starter #18
I just wanted to thank Impatient 1 for all the info on the motor. We had it out this past weekend at Gordon's Well (Imperial sand dunes) and she ran like a raped ape. Thank's a bunch.



Darrell.
 

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I just wanted to thank Impatient 1 for all the info on the motor. We had it out this past weekend at Gordon's Well (Imperial sand dunes) and she ran like a raped ape. Thank's a bunch.



Darrell.
hey thanx, glad to help:)devil let's see some pics of it
 
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