 Got a new engine |
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 Dec 17, 2006 - 11:07 PM
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Enthusiast  Joined Sep 30, '06 From Knox Vegas, Tennessee Currently Offline Reputation: 0 (0%)  |
So I had another 7afe dropped in after I threw a rod in the last one. Unfortunately, I have no idea how many miles were on this motor sooo...yea I have my doubts. What should I do to check on the shape of this motor? I'd like to build it up and turbo it. What things should I be looking for?
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Dec 17, 2006 - 11:15 PM
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 Enthusiast Joined May 12, '06 From Wilmington, NC Currently Offline Reputation: 45 (100%) |
QUOTE(InfamousChappy @ Dec 17, 2006 - 8:07 PM) [snapback]511280[/snapback] So I had another 7afe dropped in after I threw a rod in the last one. Unfortunately, I have no idea how many miles were on this motor sooo...yea I have my doubts. What should I do to check on the shape of this motor? I'd like to build it up and turbo it. What things should I be looking for? a compression test on the cylinders is usually a good indicator to the condition of the engine. --------------------  94 GT - Sold -------- 69 Pontiac Lemans - Sold 88 Alltrac - Sold ---- 04 WRX - Sold 00 GT-S - Sold ------ 91 Miata - project/drift car 95 GT - Sold -------- 96 GT - New Daily Drive |
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Dec 17, 2006 - 11:50 PM
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Enthusiast Joined Sep 30, '06 From Knox Vegas, Tennessee Currently Offline Reputation: 0 (0%) |
QUOTE(6strngs @ Dec 17, 2006 - 11:15 PM) [snapback]511285[/snapback] QUOTE(InfamousChappy @ Dec 17, 2006 - 8:07 PM) [snapback]511280[/snapback] So I had another 7afe dropped in after I threw a rod in the last one. Unfortunately, I have no idea how many miles were on this motor sooo...yea I have my doubts. What should I do to check on the shape of this motor? I'd like to build it up and turbo it. What things should I be looking for? a compression test on the cylinders is usually a good indicator to the condition of the engine. what kinda of place would be able to do this? |
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Dec 18, 2006 - 12:29 AM
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Enthusiast Joined May 12, '06 From Wilmington, NC Currently Offline Reputation: 45 (100%) |
QUOTE(InfamousChappy @ Dec 17, 2006 - 8:50 PM) [snapback]511292[/snapback] QUOTE(6strngs @ Dec 17, 2006 - 11:15 PM) [snapback]511285[/snapback] QUOTE(InfamousChappy @ Dec 17, 2006 - 8:07 PM) [snapback]511280[/snapback] So I had another 7afe dropped in after I threw a rod in the last one. Unfortunately, I have no idea how many miles were on this motor sooo...yea I have my doubts. What should I do to check on the shape of this motor? I'd like to build it up and turbo it. What things should I be looking for? a compression test on the cylinders is usually a good indicator to the condition of the engine. what kinda of place would be able to do this? any good mechanic. I'm not sure exactly what kind of numbers you should be looking for on a 7afe though. -------------------- 94 GT - Sold -------- 69 Pontiac Lemans - Sold 88 Alltrac - Sold ---- 04 WRX - Sold 00 GT-S - Sold ------ 91 Miata - project/drift car 95 GT - Sold -------- 96 GT - New Daily Drive |
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Dec 18, 2006 - 8:02 AM
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 Enthusiast Joined Nov 29, '06 From Newnan, Ga. Currently Offline Reputation: 3 (100%) |
Not neccessarily so, my 7A-FE has 215 psi compression across the engine, and it burns oil like I own a oil well!! You need a leakdown test to help determine the health of the engine. I'm hoping stem seals will slow the consumption.
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Dec 18, 2006 - 8:16 AM
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Enthusiast Joined May 12, '06 From Wilmington, NC Currently Offline Reputation: 45 (100%) |
QUOTE(56willysnut @ Dec 18, 2006 - 5:02 AM) [snapback]511360[/snapback] Not neccessarily so, my 7A-FE has 215 psi compression across the engine, and it burns oil like I own a oil well!! You need a leakdown test to help determine the health of the engine. I'm hoping stem seals will slow the consumption. I was taught that a leakdown test should be performed after a compression test and only if you had low compression in one or more of your cylinders... but I suppose it wouldn't hurt to perform a leakdown test as well. 215 psi seems really high though, my book for my automotive class says that most engines should typically fall between 130 and 180 psi. perhaps the 7afe is just supposed to have really high compression? now I'm curious as to what the manufacturer's specs say it should be... -------------------- 94 GT - Sold -------- 69 Pontiac Lemans - Sold 88 Alltrac - Sold ---- 04 WRX - Sold 00 GT-S - Sold ------ 91 Miata - project/drift car 95 GT - Sold -------- 96 GT - New Daily Drive |
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Dec 18, 2006 - 10:00 AM
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Enthusiast Joined Nov 29, '06 From Newnan, Ga. Currently Offline Reputation: 3 (100%) |
AllDatapro shows for a 7A-FE 9.5 to 1 compression, 192lbs or above for standard comp. 142lbs low, 14 lbs differential between cyls.
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