chris banshee Posted January 20, 2012 Report Posted January 20, 2012 (edited) I REBUILT TOP END ON MY 03 BANSHEE AND RAN COMPRESSION TEST FIRST TEST WAS 120 ON LEFT AND 100 ON RIGHT THEN RAN HEAT CYCLE DROPPED TO 100 ON LEFT 90 ON RIGHT RAN DOWN ROAD TODAY AND NO TOP END FELL ON ITS FACE.... I NEED HELP DON'T WANT TO RE DUE TOP END AGAIN THERE WHERE NO SCRATCHES IN CYLINDERS WHEN REBUILT RE HONED AND PUT BACK TOGETHER... Edited January 20, 2012 by chris banshee Quote
#1JUANstunna Posted January 20, 2012 Report Posted January 20, 2012 I'd say that cylinder is out of spec. and needed to be bored to the next size. Measure the cylinders and report back. Quote
sstaton1983 Posted January 20, 2012 Report Posted January 20, 2012 i have seen cylinders that have never been bored that were so worn out we couldnt bore them enough.just by glancing down the barrel looking for scratches is not a good way to check for out of round or worn cylinders. Quote
lms1977 Posted January 20, 2012 Report Posted January 20, 2012 yea the cyl is probably way out of spec Quote
04zSpittinKlotz Posted January 20, 2012 Report Posted January 20, 2012 x100000000000...... they"re outta spec Quote
chris banshee Posted January 20, 2012 Author Report Posted January 20, 2012 Thanks I'm going to tear it apart tomorrow and have them check took advice from a friend that's where I went wrong I will get back to you and let u know thanks again Quote
Larry's Shee Posted January 20, 2012 Report Posted January 20, 2012 What EXACTLY did you do? Consider doing a leakdown test BEFORE you tear it apart. Quote
chris banshee Posted January 21, 2012 Author Report Posted January 21, 2012 (edited) What EXACTLY did you do? Consider doing a leakdown test BEFORE you tear it apart. JUST TOP END AND HONED THE CYLINDERS NEW PISTONS AND RINGS..TOOK ADVICE FROM A FRIEND STATED THEY DON'T NEED BORED....GREAT ADVICE HUH... YES I CONSIDER DO THAT BUT NOT TILL AFTER I GET MY COMPRESSION BACK....FROM MY UNDERSTANDING DOING A LEAK DOWN TEST HAS NOTHING TO DO WITH THE COMPRESSION ONLY THE BOTTOM HALF OF THE MOTOR..AND IT WILL MAKE IT RUN LEAN AND LIKE CRAP...I SEE WHERE UR COMING FROM...GOING TOMORROW TO GET CYLINDERS BORED AND NEW PISTONS... THEN PUTTING THE MOTOR BACK TOGETHER THEN GOING TO DO A LEAK DOWN TEST AFTER MY COMPRESSION BACK TO 120-130.... Edited January 21, 2012 by chris banshee Quote
Larry's Shee Posted January 21, 2012 Report Posted January 21, 2012 Just wondered wether rings or piston/rings. Everyone has different deffinitions of re-do. Did you gap rings? Reason for suggesting LD test: maybe You have leaks and already fried it. Did you measure the cylinders? What was the piston/cyl clearance? Quote
chris banshee Posted January 22, 2012 Author Report Posted January 22, 2012 ok just got home with my cylinders bored and new wiseco pro lite pistons and rings going to put back together tomorrow.... thanks for the input cylinders were out of spec...will get back together and i will get back with you guys thanks again.. Quote
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