The hunt continues....
+ Reply to Thread
Page 1 of 4 1 2 3 4 LastLast
Results 1 to 14 of 47

Thread:
The hunt continues....

  1. #1
    I'm No Expert Shaun's Avatar
    Join Date
    Feb 2008
    Location
    San Clemente, Ca
    Posts
    3,138

    Default The hunt continues....

    Whelp, ran the boat pretty good this 4th with the new restricted push rods. Did a lot of cruising, did some tube and wake board towing, and ran it hard a couple nights.

    First thing I noticed was oil temps. My oil temps seamed to climb a lot faster now, and climbed up into the 230-240* when cruising around 3K with only one other passenger. I didn't keep going, normally when it would get up that high i would just shut it down and float for a bit. I have a feeling the temp would have kept climbing. My water pressure when cruising around 3K was showing 5 PSI so I'm wondering if that could have been contributing? Normally i see closer to 10. My water temp was around 150, I looked down once and saw it closer to 160. Last year my water temps were closer to 140 and I didn't have this issue when cruising, normally it would get hot when beating on it and then i would cruise to cool it down...

    Next, my oil pressure still sucks. So I'm thinking the problem has nothing to do with the grooves that were cut into the lifters. For some reason I have this gut feeling, and i've had it since the beginning of this problem, that it's the oil pump. The pump is a melling HV pump and this is my second one. The first one felt heavier, and the bolts were standard, This new one was metric and felt cheaper to me. I'm thinking it's time to pull the motor, drop the pan, and put a good pump on it... Maybe a nicer pan too.

    Couple other questions... What causes excessive oil temps? I've been contemplating an oil cooler for a long time but I'm not sure if an oil cooler is really what i need or if it's going to just be something to hide another problem. I'd like to hunt down the root cause of this, figure out exactly whats happening and fix it, not hide it. If my oil temps were hot from hauling ass around all the time i could understand, but when cruising at 3K it just doesn't seam right to me.

  2. Remove Advertisements
    PerformanceBoats.com
    Advertisements
     

  3. #2
    gn7
    gn7 is offline
    Senior Member gn7's Avatar
    Join Date
    Jan 2008
    Posts
    25,975

    Default

    fix the water flow
    change the oil pump, try a mellings 10778. The standard issue mellings seems to have slipped a little in quality control.
    If your not running synthetic oil, think about it. That alone will lower you oil temps. Nelson 109 is running M1 10/40 Racing T4 9every pep boys/kragen/auto zone in the country carries it)and can't get the oil temps up in a 900hp blown 540 pushing a 21ft cruiser. And he drives like he is possessed. Sorta like you. With the water to the cooler virtually blocked he is only reaching 180.
    the cooler the engine block and heads, the cooler the oil. I wouldn't get to alarmed about 250 and synthetic. And I bet you have a hard time getting over that. don't forget shaun, the upper viscosity number is at 212, 230 isn't that much higher than it viscosity testing temp. Synthetics laugh at 230. When my boat finishes a race, the 240 oil temp. gauge is pinned. But is not something I loose sleep over.
    the biggest oil heaters in a engine, you don't have. Sled rockers and flat lifters.
    fix the water and oil pump first, then think about a cooler.
    although the restricted PRs didn't fix you oil press problem, they are helping to keep excessive oil out of the heads.



    100% free webcam site! | Awesome chicks and it is absolutely free! | Watch free live sex cam - easy as 1-2-3
    Last edited by gn7; 07-08-2011 at 10:45 PM.

  4. #3
    Resident Ford Nut Sleeper CP's Avatar
    Join Date
    Dec 2007
    Location
    San Diego County
    Posts
    10,072

    Default

    wow 230-240* just at 3,000 something isn't right. I'd hate to see what it would do after making 6 wot passes. The Syn oil will help but, something doesn't seem right with those temps.

    After we put the cooler on the boat we monitor the oil temp, we only worry about water temp in that it doesn't get to hot or boil in prolonged idle mode. Oil temp on long hauls 12 miles at 4,000 rpm's 190* +/- water temp around 140*. If the cruise oil temp is at 190*, the racing temp goes to 220-225*, even though we run syn oil I don't like seeing 240* oil temp.

    S CP

    "Dark Sarcasm"
    Going fast is only half the fun ... what you make go
    fast is the other half.
    " A Government big enough to give you everything you want is big enough to take away everything you have"

  5. Remove Advertisements
    PerformanceBoats.com
    Advertisements
     

  6. #4
    I'm No Expert Shaun's Avatar
    Join Date
    Feb 2008
    Location
    San Clemente, Ca
    Posts
    3,138

    Default

    Ya, I had a feeling that part of the temp problem was my flow (reason for that other post). Normally each season I will pull my regulator apart, clean it, and reset it. I didn't do that this year, I think i need too. Water pressure at WOT was only 20 PSI and i normally see 25 or a few pounds more. At 3K the water pressure was some what low, and if i would jump on it a tiny bit and bring the RPMS up into the 4K range the pressure would suddenly jump up to around 10.

    When i pull the engine I'm going to run through the lines and regulator and see what they look like.

    Bob, I'm running synthetic oil, mobile1 15W-50
    Last edited by Shaun; 07-09-2011 at 10:01 AM.

  7. #5
    gn7
    gn7 is offline
    Senior Member gn7's Avatar
    Join Date
    Jan 2008
    Posts
    25,975

    Default

    I think I would double check the gauge/sender. Seems high for what your running and what your doing. But get the water flow fixed. It is your number one thing holding the oil temps down. You oil is totally depended on the heads and block being cool. Very little heat leaves the oil thru the pan. Block, heads, valve covers and intake manifold are the main heat pathways.



    100% free webcam site! | Awesome chicks and it is absolutely free! | Watch free live sex cam - easy as 1-2-3

  8. #6
    gn7
    gn7 is offline
    Senior Member gn7's Avatar
    Join Date
    Jan 2008
    Posts
    25,975

    Default

    Quote Originally Posted by Sleeper CP View Post
    . If the cruise oil temp is at 190*, the racing temp goes to 220-225*, even though we run syn oil I don't like seeing 240* oil temp.

    S CP
    With new cars running water temps in the 225+ range, 250 oil temps are becoming pretty common. Id be willing to bet the Nascar boys are running pretty close to 240-250 thru the entire race and they don't seem to be trying to get it lower. We run 250-260 depending on the water temps. I don't what to see it much higher, but I can live with 250 all day.



    100% free webcam site! | Awesome chicks and it is absolutely free! | Watch free live sex cam - easy as 1-2-3

  9. #7
    I'm No Expert Shaun's Avatar
    Join Date
    Feb 2008
    Location
    San Clemente, Ca
    Posts
    3,138

    Default

    I've been eyeballing a titan pump for awhile..... man not cheap though but it should last me forever.

  10. #8
    gn7
    gn7 is offline
    Senior Member gn7's Avatar
    Join Date
    Jan 2008
    Posts
    25,975

    Default

    The Titan is nice, but it requires you to rework you pan to get it in. I gave up on iron pumps and pickups after we broke the last iron pump off at the bolt boss in the very first race with it.
    I run this pump now. Bolts right into the same pan you have, and it has never dropped below 55 [email protected] WOT hot, even when Bill does crazy ass maneuvers like this.
    LINK: Mellings billet pump




    100% free webcam site! | Awesome chicks and it is absolutely free! | Watch free live sex cam - easy as 1-2-3
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	full port.jpg 
Views:	44 
Size:	97.8 KB 
ID:	122660  
    Last edited by gn7; 07-09-2011 at 01:26 PM.

  11. #9
    LAID IN MEXICO
    Join Date
    Feb 2008
    Location
    santa paula, ca
    Posts
    750

    Default oil temp

    with the change from the 509 to a 540this year, i decided to start monitoring the oil temp. what i found out right from the beginning, was that the olson oil cooler was working way to well. i was cruising for 15 to 20 miles at 4000 to 4500 rpm, and seeing 140* and about 175* at WOT.

    so ive been reducing the water on the pick up side of the cooler, and am seeing small changes, but it is taking bigger changes to see little increase. i will keep making changes until i see the temps im after (200* to 250*).

    i will not be a bit surprised to find out i can cap the oil cooler and run without it. this is a blown 540 that makes 1025 hp. so it should be making some heat. also keep in mind, i run a magnaflow water pump, which puts a good amount of water through the engine, and i dont preheat through the exhaust. my water temps are usually to low to register, with all that cold water moving through it. i see 120 max on the water temp from the side of the block, but thats pretty much right after the water enters the block. i would say its set up more like water coming off a jet pump.

    i was pretty shocked at how low the oil temps were. this is with piston oilers and spring oilers; which i would think, should be adding heat to the oil.

  12. #10
    gn7
    gn7 is offline
    Senior Member gn7's Avatar
    Join Date
    Jan 2008
    Posts
    25,975

    Default

    Nelson, after thinking about the PMs between us, I would be too concerned about oil that hangs at 180 while cruising. The oil doesn't have to get to 212+ to keep moisture out. It may not boil out, but it sure as hell evaporate pretty quickly. Anything lower than that while cruising is too low in my opinion. But if you can heat it to 180, and keep it below 250 hammered you doing pretty good.

    also, after thinking about the water pressure in the cooler, thats actually pretty laughable. The same seal that keeps the oil from leaking into the water is the same one that keeps the water from the oil. If it can seal off 100+psi oil pressure with zero psi on the water side, while sitting still cold on the trailer, it is more than capabable of holding back the water pressure. In fact, having water pressure on the other side of the o ring only helps. Your never going to get enough water pressure in the cooler to blow past the o ring seal.



    100% free webcam site! | Awesome chicks and it is absolutely free! | Watch free live sex cam - easy as 1-2-3

  13. #11
    Senior Member bp298's Avatar
    Join Date
    Dec 2007
    Location
    LHC
    Posts
    6,571

    Default

    Quote Originally Posted by gn7 View Post
    It may not boil out, but it sure as hell evaporate pretty quickly.
    what's the difference??

  14. #12
    Resident Ford Nut Sleeper CP's Avatar
    Join Date
    Dec 2007
    Location
    San Diego County
    Posts
    10,072

    Default

    Quote Originally Posted by bp298 View Post
    what's the difference??

    I kind of figured if I could get the oil temp stabilized at 190'ish for long runs the water, if any, would disappear. to me hot oil means hot bearings, valve springs etc. would rather keep the heat out of them while cruising.

    S CP

    "Dark Sarcasm"
    Going fast is only half the fun ... what you make go
    fast is the other half.
    " A Government big enough to give you everything you want is big enough to take away everything you have"

  15. #13
    Senior Member bp298's Avatar
    Join Date
    Dec 2007
    Location
    LHC
    Posts
    6,571

    Default

    Quote Originally Posted by Sleeper CP View Post
    I kind of figured if I could get the oil temp stabilized at 190'ish for long runs the water, if any, would disappear. to me hot oil means hot bearings, valve springs etc. would rather keep the heat out of them while cruising.

    S CP
    ?????

  16. #14
    steelcomp was here
    Join Date
    Dec 2007
    Location
    n/e TN
    Posts
    26,271

    Default

    Quote Originally Posted by bp298 View Post
    ?????
    X2...I wasn't able to follow that at all.
    If God is your co-pilot, change seats!
    Acts 2:38, the perfect answer to the perfect question.

+ Reply to Thread
Page 1 of 4 1 2 3 4 LastLast

Quick Reply Quick Reply

Register Now

Please enter the name by which you would like to log-in and be known on this site.

Please enter a password for your user account. Note that passwords are case-sensitive.

Please enter a valid email address for yourself.

Please select your insurance company (Optional)

Log-in

Tags for this Thread

Digg This Thread

Posting Permissions

  • You may post new threads
  • You may post replies
  • You may not post attachments
  • You may not edit your posts
  •  
 

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95