compression test???
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Originally Posted by bigTman
(Post 3783693)
hi, i was reading a thread that said when the car wont start after the engine is hot up is due to low compression? my 04 rx8 has this problem. i was wondering around how much does the test cost at the dealer? and if it does have low compression what is there to do about it?
Need more info on your car (like miles, maint records, modifications, etc) to be able to comment further on your "what to do about it" question. |
Originally Posted by bigTman
(Post 3783693)
hi, i was reading a thread that said when the car wont start after the engine is hot up is due to low compression? my 04 rx8 has this problem. i was wondering around how much does the test cost at the dealer? and if it does have low compression what is there to do about it?
The car has an extended warranty period on the engine core of 8yrs/80,000 miles. If it does truly have low compression and it is being replaced under warranty, the charge for the test should be billed billed back to Mazda. Mazda has been requesting oil change records if it does become necessary to change out an engine under warranty. |
But, theres no warranty on the flux capacitor :icon_no2:
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thanks for the info. my dad said he acually know how to do a compression test on regular cars. you said you need speacial equipment to do it on a rotary? or can i use the comperssion tester that they sell at auto stores?
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Special tester, different type of results.
Also, it takes them about 1/2 hour to do it, but they will charge you a full hour, which is reasonable enough I guess. if they try to charge you MORE than an hour's labor, they are seriously trying to dick with you. |
the 8yr warranty is already expired as of 12/??/12 I just called yesterday and spoke with someone from Mazda.....shitty
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hope there is still someone here who can help, i have A/T rx8 2007, it just broke 60k miles. When i first got it i changed the spark plugs and coils. Well just recently in the cold months here in louisiana my car has been getting a little tougher to start on a warm start up which i hear is a sign of low compression, another reason i believe that my engine is suffering from low compression is that its taking it 10+seconds to go from 0-60 and that's the results from my cobb access port. the car still does cold startup just fine and runs like a charm other then the ssv having a small clatter when its warmed up. just would like someone to finalize this before i take action thanks.
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Originally Posted by Jcola
(Post 4558160)
hope there is still someone here who can help, i have A/T rx8 2007, it just broke 60k miles. When i first got it i changed the spark plugs and coils. Well just recently in the cold months here in louisiana my car has been getting a little tougher to start on a warm start up which i hear is a sign of low compression, another reason i believe that my engine is suffering from low compression is that its taking it 10+seconds to go from 0-60 and that's the results from my cobb access port. the car still does cold startup just fine and runs like a charm other then the ssv having a small clatter when its warmed up. just would like someone to finalize this before i take action thanks.
So don't jump the shark yet. When is the last time you change plugs and coils? A clattering SSV isn't a good thing. If the SSV is not opening or staying open due to a vacuum leak that will really impact performance. You should put that Cobb AP to some good use and post a WOT log and an idle log. Other things could be a weak battery, corroded terminals, failing starter, etc. Should maybe consider starting you're own thread. |
Originally Posted by wcs
(Post 4558174)
Well, it could be compression but it could be lots of other things too.
So don't jump the shark yet. |
a clattering SSV is just due to wear in the idle position, it does not mean the SSV is not functional but just an annoying sound. pulses of the intake charge move the valve slightly, which wears out the stop on the cams.
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Hi Guys can you please help me at following forum
https://www.rx8club.com/new-member-f...t-help-250376/ need some urgent help and guidance |
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so in my suspicion of the beginnings of low compression, I took the spark plugs out to see what they looked like. I am pretty sure they aren't supposed to look this color on the leading plug?? my guess is that its running lean and not getting enough oil on the apex seals. Remember I changed the plugs roughly 10k miles ago so I just need someone to tell me if this is normal or not? thanks.
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