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-   -   junk in the oil filter???? (https://www.offshoreonly.com/forums/general-q/271188-junk-oil-filter.html)

blue thunder 02-22-2012 04:04 PM

My pleasure 2ton. A little story. When I bought my boat the guy (automotive guy at that) had just rebuilt the engines. Everytime I got to a certain rpm (4200 maybe) the OP would drop like a rock in one of the engines. Open cockpit, wicked burnt oil smell. I ran it like this a few times trying to diagnose it. Then one time one of the engines OP didn't recover all the way at lower rpm. I pulled that engine and found no windage tray (or studs for it) and mains that were on the verge of spinning. I barely caught it. Put in windage trays (and studs) and no more of that. The other engine eventually dropped a valve which had me rebuilding that one too... no tray. I've since bought nice pans with trap doors and all the whistles and oil control been perfect. This may not be your problem but I would inquire with the builder non the less about the trays. I'd also do the 6 qts as a lot of pans only take that much.

bigmoe512 02-22-2012 04:15 PM

WOW thats sad what kind of speed did u get with the 496 im running a 540 ci blower motor in mine

2tonchevy 02-22-2012 04:29 PM

man i hope i dont have to pull it...but it sure looks like thats what ima do. it would be a minor miracle at this point if i havnt, at a minimum toasted my bearings either form the lack of a windage tray and/or the overfilling of the engine causing the oil to cavitate. or who knows what else coulda caused it.

ive got my 509 ready to go in the shop already...and i have a dooly 10 qt pan on it....but it was built by the same guy that built this one! lmao and im just not sure i can trust it if he cant get me more than an hour out of a brand new engine built with top quality parts!

GM forged crank, diamond forged pistons, forged rods with arp bolts, stainless valves, isky cam and roller lifters, morrison girdles, file to fit rings, ported and matched intake and heads, HEI distributor, H bearings,.......i wanted a reliable low output engine...and i got a POS looks like.

2tonchevy 02-22-2012 04:30 PM

yeah it blows man.....its a 468 and i gettn 85 gps.....

blue thunder 02-22-2012 04:38 PM

Its not game over based on 10 thin flakes. 6qts of fresh oil, another run hoping the op holds fine all the way up then cut the filter open again. If you see any hint of op gage flutter stop immediately and add a qt.
85gps, nice. You'd give me trouble in the scarab, a little anyway :daz:

2tonchevy 02-22-2012 04:45 PM


Originally Posted by blue thunder (Post 3624358)
Its not game over based on 10 thin flakes. 6qts of fresh oil, another run hoping the op holds fine all the way up then cut the filter open again. If you see any hint of op gage flutter stop immediately and add a qt.
85gps, nice. You'd give me trouble in the scarab, a little anyway :daz:

lol yeah the lil 468 runs GREAT! i thoght 85 was pretty respectable personally..... i mean ive been braggin on how good it runs. and how i havnt had to adjust anyhting...not a damn thing. its great. sounds amazing. great idle sound and quality.

your makin me feel a lil better. lol thats really what i want! somebody hold my hand and tell me its gonna be ok!!!!!! :angry-smiley-038:

bigmoe512 02-22-2012 04:46 PM

yea good speed out of the 496 at least its not hard pulling it out of the sxt hour and a half pulled mine 4 times last year it sucks

bigmoe512 02-22-2012 04:50 PM

oh u did say 468 my bad i got my old 468 blower motor if u need one

bigmoe512 02-22-2012 04:58 PM

got any pixs of your sxt

2tonchevy 02-22-2012 05:04 PM


Originally Posted by bigmoe512 (Post 3624370)
oh u did say 468 my bad i got my old 468 blower motor if u need one

lol man i hope i dont need anew motor. i have a 509 sittin in the shop that is built and ready to go.....if i have to pull this engine i will just put the 509 in and run it this summer i guess......but as i said...it was built by the same guy that buil this one so idk if ima trust it.....

but your right...pullin the engine isnt bad at all! hell its already sittin half way outa th ehull! lol like a big damn jet boat.


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