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Originally posted by stv Ok guys, I've talked to 3 people thus far and they and I agree on one possibility, so I'm goin to post this problem to see if anyone else has gotten it. Here's the story: I rebuilt my engine completely in August, hit a pothole/chunk in the road in November which busted my oil pan and I spun a bearing. I bought an almost new crank out of a neon, replaced the rod that spun and bearings and oil pump, that sorta thing. I did the rebuild this week and finished it last night. I did plastigauge the rod bearings, not the mains, b/c I couldnt figure out how to w/o messin them up, and I did no line bore the bedplate and block (they are the same block and bedplate as before) The one rod bearing spun which I replaced the rod, and the middle main bearing spun (the one that has the lips to prevent side-to-side movement), it didnt spin bad, just scraped the inside of the bearin a lil' bit, not the outside of it at all. So I didnt get the machined or anything, they seemed to be fine. I replaced all my bearings torqued them. crank spun freely as uaual. started it up last night and I have it ran great for a few minutes and then started knockin again. I checked it out today and I have tons of coolant in my oil pan. I was a retard and used my used head gasket, but bought new bolts. the gasket was only used for 3 months so I thought it was ok. guess not. My main question is, do you think the headgasket leak is the cause of the knocking, since coolant/water isnt good lube? Please provide some help guys, I'm desperate and poor at the same time now thanks. peace
first off i just want to say im sorry, i know and have had the same headaches before. my point to any of you who read this is use plastigauge on EVERYTHING you can (yes, even the cams to cam caps when assembling a head) once you use it and see how easy it is...you'll never build another motor without it. if i were you i would have tested those mains though. even 2 paper widths of distance is enough for you to almost instantly spin a bearing and potentially cause SERIOUS damage to your engine. i dont know what to say man, but it sounds to me like maybe your crank was turned on the main bearing journals and you used the wrong size bearings, again *2* paperwidths, there is NO way you can see that with your naked eye, it must be plastigauged.....theres no way to tell now exactly the gap between the crank and mains unless you tear down the whole motor again and i KNOW you dont want to do that, but DO NOT let it knock, you put your engine seriously risk when you do. dont get caught hangin out with your rod out
Originally posted by stv The knocking is very faint by the way. And I can not tell if it goes w/ the rpms' or not, b/c its so faint and my exhaust is so loud, but I"m assuming it does, since it isnt lubricated properly. the car was driven from the garage to my house (5 miles) and I know it was ok b/c the check engine light didnt come on until I was about a mile away from the garage, and I super lubed everything, so I dont think I spun anything (knock on wood)...
like i was saying before, *2* paperwidths even man....enough to wreck your day, knocking is NOT good and you wont get a CEL for it, the problem will only escalate and before you know it, owned. trust me man, i'd just take it apart and make sure your investment is insured by you yourself checking it. besides, you need to change the hg anyway right?
im sorry man i hate to be the bearer of bad news, but sounds to me like you could quite possibly be in a shit locker, even more so if you dont fix this potentially serious problem soon
_________ 96 talon esi-t san clemente, ca
as needles of ice are the ill winds' talons the coldest of shadows they seep unto the bone
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