Copper 0 Posted May 10, 2006 Report Share Posted May 10, 2006 Hi guys, first visit here!Was after a bit of advice as there are no decent specialists up here! Basically the 2.8VR (110k FVWSH) had low comp on all cylinders. Looked into it and accompanied with a bit of blue smoke it pointed to the rings. I had these changed a few days agao (honed and glazed) and compressions are still no better..ranging from 123-176! Im pretty sure they should all increase after some bedding in but am a little worried that i havent seen any significant increase immediately, as surely you should see an increase to start with?What else could cause low compression...Valve timing perhaps?Any help advice would be appreciated!Cheers, Mark Link to post Share on other sites
gav_113 0 Posted May 10, 2006 Report Share Posted May 10, 2006 you should have good compression striaght away with new rings they do need to bed in but this shouldnt make alot of difference, maybe it could be the valve timimg?we had this on a V8 the other day. it turned out that it was timed up wrong. Link to post Share on other sites
Eat this 2 Posted May 10, 2006 Report Share Posted May 10, 2006 headgasket? Link to post Share on other sites
Copper 0 Posted May 10, 2006 Author Report Share Posted May 10, 2006 cheers for replies so far, head gasket is obv new on and im confident that it was prepared properly etc. Where could i find info about valve timing? Its the fact that all compressions are completley uneven thats weird! MAybe its bore ware?! Link to post Share on other sites
gav_113 0 Posted May 10, 2006 Report Share Posted May 10, 2006 on very extreme cases u can get oval bores that would result in low compression even with new rings. this would mean a rebore and oversize rings etc...i would get the timing checked out first tho... Link to post Share on other sites
mk3anni 0 Posted May 10, 2006 Report Share Posted May 10, 2006 headgasket?Don't mind him, hes not the brightest spark Link to post Share on other sites
Copper 0 Posted May 11, 2006 Author Report Share Posted May 11, 2006 LOL!Will get timing checked then. Pished off mind, spent a bit of money on the stupid rings !!!!!!!!!!! Link to post Share on other sites
Copper 0 Posted May 11, 2006 Author Report Share Posted May 11, 2006 p.s will low compression give symptoms of a misfire/poor running, or even something like a resinating feeling, or would that be connected to HT leads and dizzy? never really had a car with low comp before... Link to post Share on other sites
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