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Discussion Topic:
Rear seal
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silverchief |
09-05-2020 @ 12:38 PM
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Senior
Posts: 520
Joined: Oct 2009
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To replace the front or rear seal in my 49 flathead is it necessary to remove the engine? If not, does it just require dropping the oil pan? Roughly what would it cost to have a qualified garage do the job?
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37RAGTOPMAN |
09-07-2020 @ 12:19 PM
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Senior
Posts: 1958
Joined: Oct 2009
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HI how old is the engine, in miles,? how much oil does it leak, just drip or pour out, did you check your breather pipe. any clogs,? if you remove the oil breather cap when running, does it puff out fumes, if your engine is puffing your engine is building up pressure inside and replacing the seals will not help. this is happens when the piston rings are worn, and or cylinders, does the engine smoke when backing off the throttle going down hills, out of the exhaust ? this pressure forces the oil pass the seals, you will need to find out what exactly is your problem ,before you can repair it, you could remove the pan in the car, and remove the rear main bearing cap. you will need a rope seal puller,and installer,. also you will need to check your rear main bearing for wear, using green plastic gauge, will let you know what clearances you have hope this helps 1937 Ragtopman,
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silverchief |
09-08-2020 @ 8:19 AM
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Senior
Posts: 520
Joined: Oct 2009
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Thanks for the suggestions 37 Ragtopman The engine has 34,000 miles and is in excellent condition. No puff and no smoke out the exhaust. Just a steady drip that over a week will make a puddle about 6 inches across in the drip pan. I'm going to have it on a lift next week and will try to determine exactly where the drip is coming from.
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cliftford |
09-08-2020 @ 2:03 PM
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Senior
Posts: 845
Joined: Jan 2014
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It could be as simple as a drain plug gasket or the oil filter cover gasket or fittings.
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37RAGTOPMAN |
09-09-2020 @ 8:25 AM
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Senior
Posts: 1958
Joined: Oct 2009
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HI be sure to check the oil pressure switch, and back of the intake manifold, and fuel pump stand,area it might be something simple hope this helps, 37 Ragtopman
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mfirth |
09-09-2020 @ 10:31 AM
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Member
Posts: 207
Joined: Nov 2017
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Also, be sure your oil isn't contaminated with gasoline. Hope it is something simple. mike
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silverchief |
09-09-2020 @ 11:38 AM
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Senior
Posts: 520
Joined: Oct 2009
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Thanks for good suggestions. I will start with the washer at the oil pan plug, go from their to the oil pressure switch and then rear of manifold. Used to be able to get the copper or brass gasket for the oil pan drain plug for my car from Napa or O'Reilly. Now they only have nylon. Same with Mac and C&G. I much prefer metal. Puzzling to me, the dipstick has never reflected this regular loss of oil. The pool of oil has no odor of gasoline, and lighting a match to it does nothing. There has not been the slightest change in the coolant level, and when I touch the oil residue it looks, feels, and smells like nothing but engine oil.
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