Mark's Mgbgt Adventure

Mark Jones Mark Jones

Mark Jones Silver Member
SW, ON, Canada

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Std Pistons, 0.020" Rings?!

Posted on: The MG Experience
Posted at: Friday May 26, 2006 6:53 PM

Finally an update.

After having my engine at one shop for five months waiting for them to do the engine machineing I took it to another shop Monday, who promissed it will be done within two weeks. Based on pulling standard pistons out of the engine, ordered 0.020 over ones for replacement. The engine shop call last night and told me that the engine had already been bored out 0.020 over and they were sure if 0.030 over pitons would do the trick. Some nut bar had rebuilt the engine years ago using the original pistons and 0.020 rings. The funny thing was that the engine compression was good, around 125 to 130 psi.

So today I purchased 0.030 and 0.040 pistons (return later which ever one donesn't get used) and made the hour drive to the machine shop and picked up the 0.020 pistons for return. I've also learned that I'm very happy that I did pull the engine from the first shop. Comparing what the new shop is going to do compared to the first one, the first one would have only done a half a$$ job.

Could it be that I'll have the GT back on the road for the first time in two years before the end of June?




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Next Post – Engine Rebuild A Success
Thursday November 16, 2006 4:28 PM

Previous Post – Parts Keep Coming Off
Wednesday January 11, 2006 7:19 AM


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