We're looking for first hand experiences of people running thin Cometic MLS headgaskets on a stock b230 bottom end...
1. What thickness headgasket did you use?
2. Has your bottom end been rebuilt or is it the original, untouched, 250k mile bottom end with the carbon cleaned off the pistons?
3. Did you do anything to prepare the block for the headgasket like is recommended or did you leave it alone and just scrape the original junk off?
4. Did you attempt to measure how far the pistons stick out and what did you come up with for squish clearance?
5. How high have you revved the motor with that setup?
6. Have you ever experienced what MAY have been the pistons hitting the head? Has anyone experienced that in one of these motors yet?
For the General Leif Chumpcar(www.facebook.com/GeneralLeif), we are able to run any gasket we want, so we pulled the head to put a Cometic on. Now we are trying to figure out how tight we want to go... Our engine has fresh bearings in it, but it's not "blueprinted" or anything special inside. Just new bearings and rings and a quickie hone. We will be revving it to a usual max of 6-6500rpm for hours on end(36hr race in July!!!).
Thanks for any input you have on what you've done!
Kyle(KLR142) and Marc
1. What thickness headgasket did you use?
2. Has your bottom end been rebuilt or is it the original, untouched, 250k mile bottom end with the carbon cleaned off the pistons?
3. Did you do anything to prepare the block for the headgasket like is recommended or did you leave it alone and just scrape the original junk off?
4. Did you attempt to measure how far the pistons stick out and what did you come up with for squish clearance?
5. How high have you revved the motor with that setup?
6. Have you ever experienced what MAY have been the pistons hitting the head? Has anyone experienced that in one of these motors yet?
For the General Leif Chumpcar(www.facebook.com/GeneralLeif), we are able to run any gasket we want, so we pulled the head to put a Cometic on. Now we are trying to figure out how tight we want to go... Our engine has fresh bearings in it, but it's not "blueprinted" or anything special inside. Just new bearings and rings and a quickie hone. We will be revving it to a usual max of 6-6500rpm for hours on end(36hr race in July!!!).
Thanks for any input you have on what you've done!
Kyle(KLR142) and Marc