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Kansas 914's Avatar
 
Join Date: May 2003
Location: Durango, CO
Posts: 32
Cylinder Compression Readings

I pulled the motor (1.7L) out because I have a bit of rustoration to do in the engine bay but before I pulled it I checked compression. I wanted to decide if I should rebuild or re-install as is.

The valves haven't been adjusted for the last 15K miles.

The engine has not been run since last winter and has not been turned over until now. Oil level in the crankcase was full.

Here are my readings:

#1 = 128
#2 = 126
#3 = 95
#4 = 125

I need to replace push-rod tubes and seals so the heads are coming off.


I don't think I can be too happy with that big of a difference between #3 and the rest??

Thanks in advance - MM
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Mike Moorman
Durango, CO
mike@prosalesreps.com
Old 08-12-2005, 12:27 PM
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Join Date: Oct 1999
Location: san diego,ca.usa
Posts: 313
Adjust your valves first. A tight valve WILL make you lose compression because the valve will never close all the way. Also you do not need to remove the heads on a type4 to change pushrod tubes. Just unbolt the rocker assembly, remove the pushrods, and pull the tubes. Those higher copression numbers you have are good....no need for a rebuild.


Mike
Old 08-12-2005, 02:17 PM
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Join Date: May 2003
Location: Durango, CO
Posts: 32
Mike,

Thanks for the encouraging news - and the easier than expected pushrod tube seal replacement.

MM
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Mike Moorman
Durango, CO
mike@prosalesreps.com
Old 08-12-2005, 02:21 PM
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