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View Poll Results: what say you | |||
Find a new block now | 0 | 0% | |
Try to rebuild that engine | 0 | 0% | |
I'll give Ryan money to buy a name brand long block! | 1 | 100.00% | |
Voters: 1. You may not vote on this poll |
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04-16-2007, 10:56 PM | #1 |
Senior Member
Join Date: Sep 2005
Location: MI Mental Health Dept
Posts: 182
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non-rebuildable block?
March 2002 I got a cheep rebuilt 5.8L short block pushed 0.060 (F0AE non-roller block w/ cast pistons)
May 2005 the GT40P incorrect valve springs killed the cam / lifters. 14 Lifters came out no problem, while 2 of them had mushroomed and were pried out. I left the cylinder heads on, and didn’t touch the rotating assembly. Reassembled with link bar roller lifters and cam. I’ve had low oil pressure after the roller cam install. I’m guessing metal shavings weren’t completely flushed out and have affected the main bearings. I’ve also heard those 2 lifter bores could be screwed and are losing pressure as well. I use 15-40 oil to get 50PSI cold 25-30 warm. Now that it’s getting warmer outside, I’ll see 15PSI after a full throttle run spikes the coolant to 190F with on the 180 thermostat. I need to start planning the fix now, while I’m saving money. Could those 2 lifter bores be scared making this block non-rebuildable? I already have the link-bar lifters so I don’t need a F4TE block.
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Ryan J McCormick Parts replacement is not auto repair, if you can't diagnose, don't open the hood! Last edited by fireguy50; 04-16-2007 at 11:00 PM. |
04-17-2007, 04:54 AM | #2 |
3v's are slow
Join Date: Dec 2004
Location: Here and There
Posts: 17,152
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I think its possible that the 2 lifter holes in question could be out of round and causing low oil pressure.
Before buying a new block I would tear that one down and have EVERYTHING inspected by either you or a good machinist |
04-17-2007, 05:06 AM | #3 | |
Daddy x4 ...we're done
Join Date: Dec 2004
Location: Oxford, AL
Posts: 11,551
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Quote:
What kind of cooling fan are you using?
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-Brian '86 Mustang GT Convertible '88 Mustang LX coupe '11 Odyssey TE '21 Insight Touring |
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04-17-2007, 08:39 AM | #4 |
Si vis pacem, para bellum
Join Date: Dec 2004
Location: Tick-Tock, Tick-Tock.......
Posts: 5,146
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+1!
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1989 Saleen SSC 1988 AL DPS SSP |
04-17-2007, 08:43 AM | #5 |
Super Moderator
Join Date: Dec 2004
Posts: 6,313
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Put 20W-50 oil in it and run it till it won't run any more.
I think (as Lee said) it is those two lifter bores. That is not a priority main oiling system so it would definitely make sense that those lifter bores could be causing oil to get by. But if it is 15psi at idle on a hot day and you run a 10W-30 or something like that, I really think you're okay to go up on viscosity. Does the pressure rise with a little RPM??
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" If you can't explain it simply, you don't understand it well enough. " - Albert Einstein |
04-17-2007, 11:26 PM | #6 |
Senior Member
Join Date: Sep 2005
Location: MI Mental Health Dept
Posts: 182
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Ryan J McCormick Parts replacement is not auto repair, if you can't diagnose, don't open the hood! |
04-18-2007, 05:11 AM | #7 |
Daddy x4 ...we're done
Join Date: Dec 2004
Location: Oxford, AL
Posts: 11,551
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There's your problem... the cam wiped the rollers clean off!!!
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-Brian '86 Mustang GT Convertible '88 Mustang LX coupe '11 Odyssey TE '21 Insight Touring |
04-21-2007, 03:55 PM | #8 |
5.0 Block/Walnut Cracker
Join Date: May 2005
Location: Working....
Posts: 2,409
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Dang Ryan I can see that you use camshafts with no lobes on them.....
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'14 Dodge Challenger SRT8 392 6-speed |
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