compression Test

4-Cyl. Technical/Performance Discussions
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Marlon
Senior Member
Posts: 2034
Joined: July 21st, 2001, 2:01 am
Location: Ontario Canada

compression Test

Post by Marlon »

I did a compression test on my 92 sohc and I got 150 psi. is that good?
1993 MX-3 GS V6 - Stock
2004 MazdaSpeed MX-5
2004 RX-8 - Project
torpedan
Regular Member
Posts: 1430
Joined: January 5th, 2002, 2:01 am
Location: DFW

Re: compression Test

Post by torpedan »

What was the scores from all of the other cylanders? Really you need the results form all the chambers to give a good or bad quote
-torp.
I don't own a Mazda.
rizzy
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Joined: October 1st, 2002, 2:01 am
Location: MSN
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Re: compression Test

Post by rizzy »

well my compresioon is low, i think it was<BR>1-90 2-100 3-110 4-120<P>is that still ok<BR>or what<BR>how to fix if it is bad<P>it only has about 130,000 miles on it<P>what should i do<BR> :(
Marlon
Senior Member
Posts: 2034
Joined: July 21st, 2001, 2:01 am
Location: Ontario Canada

Re: compression Test

Post by Marlon »

<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by Robert:<BR><STRONG>well my compresioon is low, i think it was<BR>1-90 2-100 3-110 4-120<P>is that still ok<BR>or what<BR>how to fix if it is bad<P>it only has about 130,000 miles on it<P>what should i do<BR> :(</STRONG><HR></BLOCKQUOTE><BR>mines only got 118 000 kms
1993 MX-3 GS V6 - Stock
2004 MazdaSpeed MX-5
2004 RX-8 - Project
dam2009
Regular Member
Posts: 327
Joined: February 7th, 2002, 2:01 am
Location: Ottawa , ON
Contact:

Re: compression Test

Post by dam2009 »

since when you have different ratios in cilinders? unless your valves are "little smoked" average ratio for SOHC mx-3 is 120psi .. make sure you take all the spark plugs out...
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