did timing belt, spun rod bearing
 

anyone ever had anything like this happen? I did a timing belt on a friends dad's del sol. It's about the 25th D-series timing belt I've done, knocked it out in just under 2 hours. Started it up and almost instatly started knocking. I pulled apart the bottom end with the engine in the car, #1 rod bearing was spun. Any idea's how it could have happened? Ran perfect before the belt, 120k on it, timing belt is dead on.

Re: did timing belt, spun rod bearing
 

:-\ ive bever heard a rod bearing immediatly knocking, even if theirs no oil pressure. usualy takes it alittle to be audiable.

Re: did timing belt, spun rod bearing
 

it has nothing to do with the belt.
Did u make sure it ran fine before u take everything apart ? :l sounds like ur buddy is tryign to blame it on u :l

Re: did timing belt, spun rod bearing
 

Rod bearings = no oil pressure. Oil pump is driven off the crankshaft. Timing belt drives the camshaft and water pump - nothing to do with oil pressure.

Let me guess, 96+ Del Slo with the junk ass D16Y oil pump?

Re: did timing belt, spun rod bearing
 

how can y pumps suck that bad? My motor has like 100k on it and i've never had a problem with it

Re: did timing belt, spun rod bearing
 

well, I had a set of Y-series bearings laying around, amazingly one of them plasti-gauged w/in spec, so I replaced the #1 rod bearing. Started it up, and it was quiet for about 30 seconds then it started knocking again. The rod looked fine, and the journal looked fine.

The old bearing is ground down on the cap side, and the rod side has a dimple about 1mm in diameter right in the middle of the journal surface.

The car was fine before, I drove it from his house to my house. He hasn't even seen the car since I left, so yeah...wtf do I do now? I figure I'll offer to install an engine for free, but I only have a couple OBD0 engines around, nothing with the knock sensor stuff he will need.

Oh, and yeah, it's a 96 Del Sol w/ the shitty Y-series oil pump.

Re: did timing belt, spun rod bearing
 

damn that sucks .. i hate doing free work when its not your fault but i do it and im sure there is people on here who do it also .. helps with repeat customers ..

Re: did timing belt, spun rod bearing
 

um knock can be relocated to many areas of the engine to keep it happy

Re: did timing belt, spun rod bearing
 

huh?

Re: did timing belt, spun rod bearing
 

i loved you in Above the Law