Visit The Dirt Forum for More Information

Author Topic:   BLown Engine????
Wheels47
Member
posted August 01, 2004 03:14 PM
spun bearings will cause the loss of pressure pull all the caps and see what you can find willing to bet you had alot of brass shavings in the pan and filter


Wheels47
Member
posted August 01, 2004 03:47 PM
If you have a 347 check your oil pump drive shaft it might have broke.


Dirt-Tracker
Member
posted August 01, 2004 08:32 PM
It is a 347.....is there anyway to chec kan oil pump or do you just ahve to put on a new one?


stockcar5
Member
posted August 01, 2004 08:53 PM
make sure you oil pressure gauge is accurate!!

luke

------------------
www.geocities.com/dirtstockcar5


akadirtracer7
Member
posted August 02, 2004 10:35 AM
pullyour distributer out the hex shaft you see in the hole is the drive shaft.check it and see what it looks like.


Dirt-Tracker
Member
posted August 02, 2004 04:41 PM
Everything on pump looked fine....shaft was good. pulled pump apart and it does have a little wear in it. When we broke the bolts loose on the pickup, oil did run out of teh pickup. Look at all the rods, and it is my understanding that if a bearing is spun it will discolor the rod ends.....everyting looked normal there. Same as main caps. Didnt pull them, but evertything looks fine. We had no shavings in the oil either.


racerman707
Member
posted August 02, 2004 06:38 PM
Best to pull the caps and look at the bearings. You might be onto something with the trap door in the pan.


19J
Member
posted August 02, 2004 08:51 PM
Check bearing size,Make sure you did not get some undersize bearings


Wheels47
Member
posted August 03, 2004 09:03 PM
the only way to check the mains is to pull the caps start w/t the middle cap .They usually spin first.If you have a presure sensor check the wires


ford5
Member
posted August 04, 2004 05:40 AM
Wheels47 try checking your block galley plugs, there is 3 behind the timing chain sprocket and 1 under the intake in the back of the block (3\4 in.) if those have popped out, it will cause your problem, seen this before....I always thread the oil galleys with 1\4 pipe thread and thread them in. never use a high\pressure pump on a 347 either, there is no need for that and the oil pressure is usually too high when the correct bearing clearances are set.


outlawstock17
Member
posted August 04, 2004 06:38 AM
there's also another oil plug under the intake manifold at the rear of the block. i've seen them dislodge...

doh! i guess i should've read ford5's post completely!

[This message has been edited by outlawstock17 (edited August 04, 2004).]

Wheels47
Member
posted August 04, 2004 07:20 AM
Ford 5 whats your opinion on a high volume pump in the 347.I put my 347 in a late model chassis and it holds 60 psi down the straight and tapers down to 40 before I let off for the turn.the oil filters are clean so I don't think it is causing any problems.The line on this car is 1/4" and the other was 1/8" I know the 1/4 will react quicker I think this has been going on always just never seen it.I thought about a standard pump so it won't pump it up to the top end so fast


ford5
Member
posted August 05, 2004 06:58 PM
60 psi is all you will need to let that engine live at rpm's up to 7500 plus. that is obtainable with a standard oil pump. (i use Melling or Elgin) I like to see my after the feature hot, and idle, pressure at 30-40 psi. Run a good pan, 20W50 oil and I change mine after every 3 features. I quit using Hi-volume pumps years ago because I was seeing OP at 100+ on a cold start. this is very hard on distributor gears and competely unnecessary.


Wheels47
Member
posted August 08, 2004 06:36 PM
Hey Ford5---we pulled timing chain cover and there it was....a plug was missing. We put a new one in and put back together, fired it up and oil pressure climbed immediately. THen fell off to zero after about 15 seconds. Pulled it back apart and you guessed it......same plug missing. Im gonna tap it and put a plug in it. How do I get the others out...they seem to be tight but I want to tap all of them while I have it apart.


Back to the Archives