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Author Topic: Coolant leak  (Read 12471 times)

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Offline phil_long

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Re: Coolant leak
« Reply #30 on: September 09 2015, 10:41:21 PM »
Damn!! Thanks a lot Texas T. Does the new water pump come with a pulley?
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Offline earlbrown

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Re: Coolant leak
« Reply #31 on: September 10 2015, 02:54:20 AM »
You'll have to move your pulley over.  And make sure the belt runs true.  Odds are the pulley flange is in the wrong spot and needs to be adjusted.


http://www.turbobuicks.com/forums/787768-post18.html
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'87 GN - 4.2L SFI Turbocharged innercooled V6 - Chrome valve covers - supra pump - 14" K&N - 52mm throttlebody - rocker shaft supports -  1/2 intake spacer - TB coolant bypass - 3" ATR exhaust tip - Alum intake pipe - NOS timing cover - chip - relocated charcoal canister - CR42's - stock

Offline TexasT

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Re: Coolant leak
« Reply #32 on: September 10 2015, 11:26:20 AM »
Might be time for a pair of hoses and an "s" hose if you've never replaced em. Pulley gets transfered as per earl. You might even(read:probably) have to pull the studs out of the old pump to put in the new. Just double nut em and reverse em out then into the new one.

Man that is a clean engine there earl. Even new I don't think mine was that clean.
NICE!

OH, and some never seize on the bolts that go into the cover. Steel and aluminum don't play well together. Be careful getting it apart. You don't want to break any off.
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Offline earlbrown

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Re: Coolant leak
« Reply #33 on: September 11 2015, 01:45:45 AM »
It was only that clean since it was the first time I built the 4.2.....

now I'm on round three as the stupid dump Speed Pro slugs have proven they'll crack at the drop of a hat and I have to put my 'earlbrown' forged pistons in there!  :)


It sure would be nice if I enjoyed pulling engines and putting them back!
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'87 GN - 4.2L SFI Turbocharged innercooled V6 - Chrome valve covers - supra pump - 14" K&N - 52mm throttlebody - rocker shaft supports -  1/2 intake spacer - TB coolant bypass - 3" ATR exhaust tip - Alum intake pipe - NOS timing cover - chip - relocated charcoal canister - CR42's - stock

Offline Scoobum

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Re: Coolant leak
« Reply #34 on: September 11 2015, 10:31:04 AM »
I can have the engine out of my car and on a stand in an hour. :) School me on these Speed Pros...cuz I beat the crap outta these Sealed Power/Federal Moguls for 3 seasons...with zero issues. Or are these Speed Pros I beat the crap outta? :) H521ACP .030
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Offline earlbrown

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Re: Coolant leak
« Reply #35 on: September 11 2015, 04:37:40 PM »
That's the one's.  Inside the oil ring groove, damn near the entire skirt is one big slot. For some reason I have the ability to rock the piston just enough to crank them at that spot and pinch my rings.

That reminds me, my new forged 4.1 slugs are growing dust. I need to float and balance a new set of rods and put that damn thing back together...
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'87 GN - 4.2L SFI Turbocharged innercooled V6 - Chrome valve covers - supra pump - 14" K&N - 52mm throttlebody - rocker shaft supports -  1/2 intake spacer - TB coolant bypass - 3" ATR exhaust tip - Alum intake pipe - NOS timing cover - chip - relocated charcoal canister - CR42's - stock

Offline williambavila

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Re: Coolant leak
« Reply #36 on: September 11 2015, 05:39:21 PM »
That noise really sounds like my car did when the balancer worked itself loose. Good luck and keep us posted
.
 
« Last Edit: September 11 2015, 05:50:44 PM by williambavila »
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Offline Scoobum

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Re: Coolant leak
« Reply #37 on: September 11 2015, 11:15:40 PM »
Quote from: earlbrown on September 11 2015, 04:37:40 PM
That's the one's.  Inside the oil ring groove, damn near the entire skirt is one big slot. For some reason I have the ability to rock the piston just enough to crank them at that spot and pinch my rings.

That reminds me, my new forged 4.1 slugs are growing dust. I need to float and balance a new set of rods and put that damn thing back together...

Earl...who in the blue hell makes these pistons? Is it Sealed Power...Federa l Mogul or Speed Pro?
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Hard work pays off, dreams come true. Bad times don't last, but BAD GUYS do!

RIP Scott Hall AKA Razor Ramon

Offline earlbrown

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Re: Coolant leak
« Reply #38 on: September 12 2015, 01:22:58 AM »
Yes.

Federal Mogul, Speed Pro, and Sealed Power are the same thing.
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'87 GN - 4.2L SFI Turbocharged innercooled V6 - Chrome valve covers - supra pump - 14" K&N - 52mm throttlebody - rocker shaft supports -  1/2 intake spacer - TB coolant bypass - 3" ATR exhaust tip - Alum intake pipe - NOS timing cover - chip - relocated charcoal canister - CR42's - stock

Offline phil_long

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Re: Coolant leak
« Reply #39 on: September 18 2015, 01:03:23 PM »
Sorry for the late reply. Been traveling for work. The hoses were my first replacement because thats were I thought the leak was coming from. I can video the pulley and how bad its moving if you want.
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