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vn commodore 1989 series 1 engine

martin Lakeland

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Hello

Need to find out what the cylinder compression value is for a new or recon v6 vn engine. I am thinking of swapping engines as there is not much power left in mine. A wrecker has a vp engine that has done only a hundred thousand km's that apparently fits a vn commodore..

Need to know what a good compression value is for comparison (he said he would check the vp engine compression values as they are written down but has not got back to me yet - thought i would get on this forum in the meantime. . Can anyone help? Is there a spec sheet out there?

regards,
Martin
 

Brett_jjj

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The minimum compression for the V6 engine is 689 kPa or around 100 psi.The lowest reading on any cylinder should not be less than 70% of the highest cylinder reading.Compression should build up quickly and evenly in each cylinder.
 
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