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By iowa fords - 11 Years Ago
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Newly rebuilt 292 +.030 new everything, leaking from the bolt that holds oil pump on block( the one above ). I didn't think that bolt goes into any where that could leak.
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By Hoosier Hurricane - 11 Years Ago
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There is no oil passage that the bolt could intersect. My guess is there is a piece of debris between the pump and block whereby pressurized oil could reach the bolt. A chunk of the old gasket could do it.
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By 2721955meteor - 11 Years Ago
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recently dismant a 292 the upper bolt was 2 long and the oil pump body stoped it frome holding the pump in place,if to long or over tight could damage pump.
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By Riz - 11 Years Ago
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If the same hardware was reused I would bet on the gasket or debris between pump and block, if they used new hardware I would bet on bolt bottoming out
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By iowa fords - 11 Years Ago
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Well I removed oil pump and replaced gasket and put a copper washer under the bolt that goes thru the block, and it still leaks, 3 seconds after it is started. After it runs for 1/2 a minute I have a 5 inch puddle under car. This 292 has 2 pipe plugs above oil pump in block and can't break them loose and paint around plugs look good, no cracks in paint, so I don't think they are leaking. After a 2 year full restoration this is the only thing keeping me from driving it. Any Ideas are welcome
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By Y block Billy - 11 Years Ago
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Is this a new pump or used? someone could have overtightened the fasteners and there could be a slight bump where the steel was stretched around the threads. Remove it and use a flat stone and make sure the surfaces are flat. Also make sure your fasteners are not bottoming out. Also make sure your releif valve is working properly, how much pressure do you have when running?
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By iowa fords - 11 Years Ago
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This is a new pump and all bolt lengths are the same. I will remove oil pump again and check it out. is it possible to put the gasket on wrong?
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By Hoosier Hurricane - 11 Years Ago
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The gasket will go on more than one way, but only one is correct. Look at the oil transfer passages closely and make sure they are aligned in the gasket.
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By aussiebill - 11 Years Ago
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Hoosier Hurricane (8/5/2014)
The gasket will go on more than one way, but only one is correct. Look at the oil transfer passages closely and make sure they are aligned in the gasket.
Hi john!, yes that is a little known fact and certainly will lead to oil leaks at pump, regards bill.
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By The Horvaths - 11 Years Ago
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As well, the pump itself may have a leak and spray oil to where it looks like it leaks at the block. The pump cover plate should not be over or under torqued. The o-ring can get pinched or even twist. Is this a gerotor or spur gear pump?
Good reading, pictures: http://books.google.com/books?id=I7emAgAAQBAJ&pg=PA106&lpg=PA106&dq=y-block+oil+pump+bolt+length&source=bl&ots=7lKbivNoUt&sig=alg3CudxLUOJY9MkOUg0XWhf8BA&hl=en&sa=X&ei=I3PhU_jECIHq8QGR1oAo&ved=0CD0Q6AEwCw
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By slick56 - 11 Years Ago
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Are you sure it is not leaking from the oil filter spin-on adapter?
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By iowa fords - 11 Years Ago
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I have over 90 psi on start up, can the Oil Pump be adjusted ? This might be why my oil pump in leaking. It is a new Melling oil pump
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By charliemccraney - 11 Years Ago
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Is that 90psi at idle or at speed? That's very high for idle, but not bad for a couple thousand rpm.
The pressure can be adjusted with shims or washers. Usually an adjustment is made to get the pressure higher rather than lower. The first thing I would check is that the pressure relief valve is operating smoothly.
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By iowa fords - 11 Years Ago
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Found the source of the oil leak, it is the plug just above the oil pump. It will not move and is now starting to get rounded out in the 1/4 inch allen head. To make things worse it is a 3 speed car, so the clutch bracket is always in your way.
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By DualQuad312 - 11 Years Ago
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Do you have access to an oxy acetylene torch? I know putting heat to you engine block is the last thing you want to do but If you get a brazing tip a #4 or slightly larger you'll be able to heat the Plug Not The Block till it turns Red. after it cools slightly it will spin right out almost with just your fingers but you must get it Red and just the plug.....It'll only take a few short moments to do....Keep water near by and it's good to keep a Co2 or dry chemical fire extinguisher near by..... I had a welder at work teach me this trick and it works every time. Usually the first time you put heat to it and make it turn red...
Best regards,
Jeff
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By iowa fords - 11 Years Ago
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Thanks DualQuad312.......... After a few seconds with a torch the plug came right out. Should be driving for the first time this weekend.
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