Check my Compression!
12-30-2008, 08:52 PM
#26
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Hey Adam,
Yep, we toasted 2 motors at Lime Rock. I think you're right about the above teams losing motors---crazy. One motor was totally our fault, the other one is still being investigated by Scooby Doo and the Mystery Machine gang.
My little bit of research has revealed that the street guys aren't seeing ANYWHERE NEAR the side seal failure modes us Koni Challenge guys are seeing. Most engine builders I talk to can only guess why this is.
Yep, we toasted 2 motors at Lime Rock. I think you're right about the above teams losing motors---crazy. One motor was totally our fault, the other one is still being investigated by Scooby Doo and the Mystery Machine gang.
My little bit of research has revealed that the street guys aren't seeing ANYWHERE NEAR the side seal failure modes us Koni Challenge guys are seeing. Most engine builders I talk to can only guess why this is.
12-31-2008, 08:56 AM
#27
the enemy in the mirror
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maxwell paper did lose an engine that day, i remember talking with one of theirs about it (astral was there too). Said the engine was pretty tired going in...
+1 on bunk testing from your indie guy. You might still have a problem but I don't believe those numbers.
do the ignition overhaul anyway, yourself (cheap and a good experience); or front the money for an official dealer compression test.
+1 on bunk testing from your indie guy. You might still have a problem but I don't believe those numbers.
do the ignition overhaul anyway, yourself (cheap and a good experience); or front the money for an official dealer compression test.
12-31-2008, 12:06 PM
#28
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Agree 100%. This is the exact same thing we have experienced. Thanks for elaborating.
Thank you for sharing.
12-31-2008, 12:29 PM
#30
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I'm gonna do another compression check once I can make it back to our shop...according to Mazda's tester, in Feb I was averaging 9.9's in the rear rotor and 9.7's in the front. As of the last test at the end of August my numbers have dropped to 8.6's in the rear and 8.4's in the front. Hopefully this next check doesn't move any lower.
12-31-2008, 12:37 PM
#31
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Tangent
Yea changing plugs, coils and wires yourself is very easy.
You could buy all the parts and tools for what you have to spend. The you'd have them for future use.
Do you have a place to work on the car? A pair of jack stands is a good thing to get if plan on working under the car. Safety first right.
Yea changing plugs, coils and wires yourself is very easy.
You could buy all the parts and tools for what you have to spend. The you'd have them for future use.
Do you have a place to work on the car? A pair of jack stands is a good thing to get if plan on working under the car. Safety first right.
12-31-2008, 08:08 PM
#32
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Ah well at least my Amex card has 0% APR for the next 11 months 
Thanks for the offer dozer.I didn't see a compression test done by the dealer, but when I got the car back, I was told 2 of the coils were shot. I guess that might explain the fucked up numbers I was getting.
Anyways, she's alive and kicking fine. Thanks for the help guys!
12-31-2008, 10:18 PM
#34
Super Moderator
Agree, Bad coils has nothing to do with your engines compression figures.
01-01-2009, 06:57 AM
#35
I am gonna guess you have a misfire code. P02096, or p0300-p0302....I forget which ones apply. I have seen zeros on tests with misfire codes, whether by mechanics fault or if its legit I dont know, I have only done compression tests on the rebuilds personally and those always pass. Rough idle/L.O.P.(lack of power) are symptoms for engine rebuilds and the check engine is all you need to find out, if its one of the codes above then its rebuild time unfortunately.
01-01-2009, 10:31 AM
#36
Registered User
so i just found out today after almost 3 weeks of my car not starting that i have no compression and that the motor needs to be rebuild...im not happy about it, the car is not under warrenty, its going to cost me so ungodly much.
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