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New rebuild and no oil pressure.
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Desertbusman
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PostPosted: Thu Aug 09, 2012 1:25 pm    Post subject: Re: New rebuild and no oil pressure. Reply with quote

bugger101 wrote:
Not everyone needs tom wilson's engine book.


You are right. But based on the large amount of engine problems we see here a big wad of people threw away a lot of coin when $17 would have prevented it.
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curtis4085
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PostPosted: Thu Aug 09, 2012 2:07 pm    Post subject: Re: New rebuild and no oil pressure. Reply with quote

Desertbusman wrote:
bugger101 wrote:
Not everyone needs tom wilson's engine book.


You are right. But based on the large amount of engine problems we see here a big wad of people threw away a lot of coin when $17 would have prevented it.


X10 ... I bought the book even though i did not rebuild my engine. What I learned is my first engine builder should have bought a copy as well. $4,500 and 9 m0nth of down time of a mistake.
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Wildthings
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PostPosted: Thu Aug 09, 2012 2:13 pm    Post subject: Re: New rebuild and no oil pressure. Reply with quote

Desertbusman wrote:
bugger101 wrote:
Not everyone needs tom wilson's engine book.


You are right. But based on the large amount of engine problems we see here a big wad of people threw away a lot of coin when $17 would have prevented it.


I wonder if anyone at GEX has ever seen one? Confused Maybe we could pool our resources and buy them one. Twisted Evil Confused


Last edited by Wildthings on Thu Aug 09, 2012 2:26 pm; edited 1 time in total
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velo96
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PostPosted: Thu Aug 09, 2012 2:15 pm    Post subject: Reply with quote

ok desertbusman I tried turning the engine backward by hand and adding oil to the sender hole with no luck, about a half a quart. Should it be harder to turn the engine backward than forward? I need to stop and take a mental break. Later i will start digging my way to the pump. The engine always ran thru smooth during assembly. I can't believe this is happening!! Mad
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Desertbusman
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PostPosted: Thu Aug 09, 2012 4:22 pm    Post subject: Reply with quote

No it shouldn't be any harder turning it backwards. I would squirt some oil in thru the plug holes to give it a bit of piston and ring lube.

Too bad it's in the bus. Otherwise you could tip it up a bit and flood the whole pump and pickup area.
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Wildthings
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PostPosted: Thu Aug 09, 2012 6:38 pm    Post subject: Reply with quote

If it is really hard to turn backwards it could be that for some reason the inlet side of the pump is totally clogged or plain blocked off. This would deadhead the pump when you try to turn it backwards and would all but guaranty you could not make oil pressure.
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busdaddy
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PostPosted: Thu Aug 09, 2012 6:58 pm    Post subject: Reply with quote

velo96 wrote:
Should it be harder to turn the engine backward than forward?

Is the distributor installed?, if not the resistance may be the inadvertant remachining of the drive gear on the crank Shocked
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velo96
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PostPosted: Fri Aug 10, 2012 7:18 pm    Post subject: Reply with quote

So I removed the pump cover and rotated the engine by hand and the pump turns. Not a drop of oil came out of the pump when i removed the cover. The ports are clean. The only thing I see is the top gear has been rubbing the the cover. I remember checking it with a feeler gauge and the dimensions being at the minimum. I wonder if with the cover on the shaft is spinning but the gear isn't? I had to press the shaft in further when i got the pump and i remember thinking it was quite easy but not enough to alarm me. Tomorrow I'm going to recheck the clearances and pack the pump with vaseline.
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skills@eurocarsplus
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PostPosted: Fri Aug 10, 2012 7:23 pm    Post subject: Reply with quote

Desertbusman wrote:
I would squirt some oil in thru the plug holes to give it a bit of piston and ring lube.



be careful if you do this. you may never seat the rings if you flood the cyls with oil
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velo96
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PostPosted: Sat Aug 11, 2012 10:12 am    Post subject: Reply with quote

Primed the pump with petroleum jelly and it took two seconds to have oil squirt out of the sender hole and loose oil filter. LESSON LEARNED!!! Thanks for everyones help!!
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ccpalmer
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PostPosted: Sat Aug 11, 2012 11:19 am    Post subject: Reply with quote

velo96 wrote:
Primed the pump with petroleum jelly and it took two seconds to have oil squirt out of the sender hole and loose oil filter. LESSON LEARNED!!! Thanks for everyones help!!


Awesome! Glad it worked out.
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PostPosted: Sat Aug 11, 2012 11:28 am    Post subject: Reply with quote

glad it worked out.
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Wildthings
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PostPosted: Sat Aug 11, 2012 11:56 am    Post subject: Reply with quote

skills@eurocarsplus wrote:
Desertbusman wrote:
I would squirt some oil in thru the plug holes to give it a bit of piston and ring lube.



be careful if you do this. you may never seat the rings if you flood the cyls with oil


I would like a bit of further explanation on this. Any oil that you squirt into the cylinder should be gone within minutes, so I don't see how it can have much affect on the seating of the rings. Never heard of anyone installing their pistons dry to speed up seating.
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