bad day

[BMFB]

Re: bad day

I built a 305 myself, and did all the machine work at school and the oil came out clean, but i didnt change it until about 1000 miles, this it ran for about 10 minutes and I dumped it so it was still crystal clear, hard to say I suppose. I believe my clearances are at 1.7 thousands for my mains and rods, but I am not sure, I can talk to him and have him remind me.

 

[Don W.]

Re: bad day

If the drain oil goes clean as the miles accumulate then you may have lucked out. Silver colored particulate virtually has to be bearing material. We can speculate on a hundred different possibilities.

Are you reading your high oil pressure off the dash gauge? If so I strongly recommend a "real" gauge. Mechanical or electric. For example my dash ga reads much higher than my mech ga.

Also cut the oil filter, open up the element and let it sit for a day on some of those blue paper shop towels. The oil will migrate to the towel. Examine the inside of the pleats and let us know what you find.

 

[V6 Kompressor]

Re: bad day

Sometimes particles get left in the oil cooler/lines from the engine that blew up. The same goes for junk leftover in tranny lines/coolers. When you fire off the new engine/tranny the remnants from the older unit comes back to haunt you if cooler lines aren't flushed or replaced. oil pans are good for hiding stuff from previous engine failures too. It's a good idea to put a cleanable filter in the turbo oil line too. just my 2cts...

 

[WyoSyclone]

Re: bad day

Sometimes particles get left in the oil cooler/lines from the engine that blew up. The same goes for junk leftover in tranny lines/coolers. When you fire off the new engine/tranny the remnants from the older unit comes back to haunt you if cooler lines aren't flushed or replaced. oil pans are good for hiding stuff from previous engine failures too. It's a good idea to put a cleanable filter in the turbo oil line too. just my 2cts...

GM actually has big warnings stating that if an engine utilizing a radiator-incorporated cooler has gone bad, that the cooler has to be replaced when rebuilding the engine. They state that as the cooler heats and contracts, small particles of metal will become dislodged from the cooler and go right back through the new engine.

 

[BMFB]

Re: bad day

i know about the cooler and line issues, and replaced the radiator, and cleaned out the lines and turbo, im not sure how to cut a fliter without getting metal into it from the cutting

 

[V6 Kompressor]

Re: bad day

summit racing and jegs has them, they kinda look like a tubing cutter with a big throat. they won't leave metal, maybe paint from the filter. New cams, bearings will leave a shiny metallic film in the oil. I know it's hard not to worry about new engine break in periods, especially when you have alot of cash/time/blood/sweat/tears and beer involved...

 

[Don W.]

Re: bad day

It's not as bat as you might think. Cutting the filter can does not cause metal to get into the bottom of the pleats where metal from the engine will be. Just be carefull and I think you'll be fine.

 

[BMFB]

Re: bad day

summit racing and jegs has them, they kinda look like a tubing cutter with a big throat. they won't leave metal, maybe paint from the filter. New cams, bearings will leave a shiny metallic film in the oil. I know it's hard not to worry about new engine break in periods, especially when you have alot of cash/time/blood/sweat/tears and beer involved...

THAT is more of an accurate discription of what it looked like