302 Using Oil???HELP Please!
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302 Using Oil???HELP Please!
Ok I know this will sound stupid but I have a 1994 F150 that was a computer truck and is now a carburated one. I swapped the injection and all of it troubles for a Holley and Edelbrock Performer RPM intake along with doing rings & .030" over slugs with aluminum heads in the tired old truck. It had 285,000 on the clock and used a little oil. I never really saw it smoke much but it did use a little. Anyway I just wanted to freshen it up and drive it but now I have alot of oil usage. Maybe a quart every thousand and the tailpipe is wet with what I assume is oil. I've taken the Edelbrock heads back off and even went as far as re-ringing the slugs and re-honing the block; I found nothing and what do you know...the SAME THING! Has anyone ever seen "wet exhaust" with LOTS OF BLACK STUFF? I've built my share of engines but this is baffling! Can I assume that the heads are ok? I had them gone thru while the block was bored and the shop even replaced the springs for the high lift cam. Nothing looks broken inside and the truck doesn't miss a lick. Did I miss some strange sort or gasket alignment issue with the different hardware? I don't know what to do. Anyone want some go fast goodies? Any thoughts are appreciated...
Postmaster
Joined: Jun 2005
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did you check the pushrod length? if the valve trane geometry is off it will eat up the guides...
One more thing it took my 302 a long time to seat the rings... it would blow the dipstick out of it tube everytime I hit 6500rpms... not anymore... I just drove it cause thats all I had, 2,000 miles later and it stopped.
One more thing it took my 302 a long time to seat the rings... it would blow the dipstick out of it tube everytime I hit 6500rpms... not anymore... I just drove it cause thats all I had, 2,000 miles later and it stopped.
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Yeah I did the math and checked and rechecked the way the rockers interact with the valve stems. All seemed right to leave the pushrods at the stock length...thanks for the thoughts maybe I'll look at the guides if I take it back apart and dismantle the heads.
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I don't really drive it hard at all. I've hit the 4 bbls maybe once in the 500 miles I've put on it. I've tried to baby it mostly because I have quite a bit of cash tied up and I think I may have hurt something. Believe me, if I thought I could hammer the problem out I would be the first to try that route. My past experiences have led to spun bearings and general mayhem. I think I hit 5000 RPM for the first time the other day. I think I'll just try to desrtoy it with my right foot. It's only a toy, right?
Postmaster
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with that many miles on it I would call that normal... drive it for a while and give it some once and awhile .. let it rip
whats the total build...cam, intake etc....
whats the total build...cam, intake etc....
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yeah I think that's what I'll do but I've always been a Chevy guy and this is only my 2nd Ford and 1st Ford total rebuild. Why are they so different when it's all just nuts and bolts? Clearance is clearance...right? Basically .001 per inch. I'm an Engineer by trade and can typically make most things work but this is just different I have trouble understanding.
The build was typical, machining was done by a good local shop, not the cheapest guys in town that's for sure. I had them turn the crank, bore the block, order the goodies including all we've talked about so far. Anyway thanks for all the insight and I guess I'll just keep adding oil.
The build was typical, machining was done by a good local shop, not the cheapest guys in town that's for sure. I had them turn the crank, bore the block, order the goodies including all we've talked about so far. Anyway thanks for all the insight and I guess I'll just keep adding oil.
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Originally Posted by woodly1069
yeah I think that's what I'll do but I've always been a Chevy guy
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From: Hanford Ca.
hay how it going ive had the same thing hapen to me in my 69 mustang put a good 302 in it 60 over good cam intake an a carb and it would push oil threw the dipstick two falts i mad 1 i didnt check the rings and and the bore it was alittle off and caused blowby on the 1cylender and ran great till it broke in the it threw the rod and crack the bolck and it used oil like your and end with wet pips on the left hand bank hope goes well good luck also the plug with a little oil on it is the problem one
Lead Driver
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From: Greater Austin, Texas
I swapped the injection and all of it troubles
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