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sheltonw3
Member
Joined: 08 Dec 2008
Posts: 49
Location: Now Residing in Hellfire and Brimstone
1991 Pontiac Trans Am
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 Posted: Tue Feb 07, 2012 3:39 pm Post subject: How to tell if an engine is blown?... |
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I have a friend who recently got a 88' formula project car with no distributor and no ECM and he is trying to see if the engine is blown or needs to be replaced?....I myself am not too familiar with the 88's 5.7 engines, much less ripping one apart, I am just trying to find some kinda answer to see if the engine can be saved or has to be swapped?....thanks in advance.
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Twilightoptics
Hardcore (12sec Club)
Joined: 13 Jan 2004
Posts: 9191
Location: Auburn , WA
1987 Chevrolet Camaro IROC-Z
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| Posted: Tue Feb 07, 2012 3:42 pm Post subject: |
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Put and ECM on it and a Dizzy in it and see what she does.
You can't really tell without it running.
Check the fluids. Cross contamination means blown or gaskets.
Good battery and a starter and a compression tester will tell you if the cylinders are balanced.
Leak down gauge can show you the condition of the rings if the valves are sealed well.
Get it running.
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A redline a day keeps the carbon away! |
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91RSVert
Member
Joined: 16 May 2007
Posts: 2736
Location: AR
1991 Chevrolet Camaro RS
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| Posted: Tue Feb 07, 2012 5:58 pm Post subject: |
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| Twilightoptics wrote: |
Good battery and a starter and a compression tester will tell you if the cylinders are balanced.
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Or that its siezed up so bad that it wont rotate or clunks when rotating. |
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aaron_sK
Member
Joined: 23 Jan 2006
Posts: 8834
Location: Back in beautiful Tacompton
1987 Chevrolet Camaro IROC-Z
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| Posted: Tue Feb 07, 2012 9:49 pm Post subject: |
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| Why does he suspect it to be a bad engine? Did the seller tell him something? |
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sheltonw3
Member
Joined: 08 Dec 2008
Posts: 49
Location: Now Residing in Hellfire and Brimstone
1991 Pontiac Trans Am
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| Posted: Wed Feb 08, 2012 5:22 pm Post subject: |
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| aaron_sK wrote: | | Why does he suspect it to be a bad engine? Did the seller tell him something? |
The car was bought 3rd hand, from someone who had it for a short while and decided not to pursue finishing it, as best it could be determained, the car appeared to have some overhaul work done , the hood struts were already gone and the steering shaft is gonna either be replaced or rebuildt and just hunt down the rest of the missing parts and see if it turns over!
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