yesthatmat
Newbie
so i bought a 97 rcsb that didnt run. put a cap and rotor on it and it fired up. 3 days later it turned in to a steam cleaner. so i pulled the heads to find the grand canyon of a crack (or 6) in the heads as expected. now mind you it was blowing steam at this point. so a set of dart vortec heads some felpro gaskets (all rubber intake gasket aswell)
and some arp head bolts later its back together. well now it is still burning coolant but its different. it is burning it. like smoke not steam. still coolant you can smell the chemical smell of propylene glycol. but it is smoke. andddddd it only does it for 20-30 seconds. then stops. if it were residual coolant in the exhaust it would steam until it was gone id assume. ive ran it a good 10 hours solid twice. the coolant is dropping slightly. none in the oil. no skip runs fine (neither of my compression testers seem to work) pressure tester and exhaust gas testers are on the way (mostly because i needed them anyway) . so my question is what am i overlooking. im assuming it has to be something like a crack in the cylinder liner. that is sealing when it gets hot seems like a long shot on a sbc. (this is a l31 btw) so tell me what im missing before this texas speed 427winds up in here
and some arp head bolts later its back together. well now it is still burning coolant but its different. it is burning it. like smoke not steam. still coolant you can smell the chemical smell of propylene glycol. but it is smoke. andddddd it only does it for 20-30 seconds. then stops. if it were residual coolant in the exhaust it would steam until it was gone id assume. ive ran it a good 10 hours solid twice. the coolant is dropping slightly. none in the oil. no skip runs fine (neither of my compression testers seem to work) pressure tester and exhaust gas testers are on the way (mostly because i needed them anyway) . so my question is what am i overlooking. im assuming it has to be something like a crack in the cylinder liner. that is sealing when it gets hot seems like a long shot on a sbc. (this is a l31 btw) so tell me what im missing before this texas speed 427winds up in here