Guest century55 Posted September 23, 2011 Share Posted September 23, 2011 i have a 55 century,322 auto. i have pulled this motor 3 times to put new rear main seal in!!! IT STILL LEAKS !!! has anyone had any GOOD luck with these ? tried the ropes and now has a neoprene seal in it , which still leaks Link to comment Share on other sites More sharing options...
Ivan Saxton Posted September 23, 2011 Share Posted September 23, 2011 If there is a groove worn in the shaft where the lip of the seal runs, you need to alter the seal position so they are not coincident. Otherwise it is most likely an issue of excess crankcase pressure from piston blowby. Link to comment Share on other sites More sharing options...
old car fan Posted September 23, 2011 Share Posted September 23, 2011 I would think 55 would have positive pressure,,has to be rings or valves Link to comment Share on other sites More sharing options...
Bhigdog Posted September 24, 2011 Share Posted September 24, 2011 i have a 55 century,322 auto. i have pulled this motor 3 times to put new rear main seal in!!! IT STILL LEAKS !!! has anyone had any GOOD luck with these ? tried the ropes and now has a neoprene seal in it , which still leaksDefine "leak". If you are talking puddles on the floor that's not good. If you are talking drips and spots, along with trans oil drips, that's pretty much the nature of the beast. I used to fret about it, now I just keep a big piece of card board under my cars.............Bob Link to comment Share on other sites More sharing options...
Barry Wolk Posted September 24, 2011 Share Posted September 24, 2011 I find that the more you drive them the less they leak. Link to comment Share on other sites More sharing options...
Guest Mochet Posted September 24, 2011 Share Posted September 24, 2011 Before you pull the engine again, I suggest you try a stop-leak product like Bars-Leak or Lucas Engine Oil Stop Leak. Skinned Knuckles, the magazine for home mechanics, ran a test of one of these "miracle" products (White Shepherd Oil Stop Leak), and actually got good results. You can read it here.Phil Link to comment Share on other sites More sharing options...
Guest billybird Posted September 25, 2011 Share Posted September 25, 2011 Another product is K&W Block Seal. Link to comment Share on other sites More sharing options...
Guest century55 Posted September 25, 2011 Share Posted September 25, 2011 thanks guys= i will surely try your { snake oil } lol . rather than pull the rear end and trans again. Link to comment Share on other sites More sharing options...
Bhigdog Posted September 25, 2011 Share Posted September 25, 2011 thanks guys= i will surely try your { snake oil } lol . rather than pull the rear end and trans again.Why did you pull the rear and trans? ............Bob Link to comment Share on other sites More sharing options...
Richard1 Posted September 25, 2011 Share Posted September 25, 2011 The sealants are good. AutoRx also has some effect while cleaning. It is an ester formulation oil that has good solvency. That softens up and expands the seal so it can fit better. Automatic transmission conditioners are similar chemistry, just in different carrier oils. Link to comment Share on other sites More sharing options...
Guest Gary Hearn Posted September 26, 2011 Share Posted September 26, 2011 With all that rear main seal experience, you are ready to step up to being a Studebaker owner... Link to comment Share on other sites More sharing options...
NTX5467 Posted September 27, 2011 Share Posted September 27, 2011 With all due respect, I believe the K&W Block Seal is for cooling system leaks, not engine oil leaks.Regards,NTX5467 Link to comment Share on other sites More sharing options...
Richard1 Posted September 28, 2011 Share Posted September 28, 2011 Good point. Make sure it is an engine oil sealant. Link to comment Share on other sites More sharing options...
Guest rsd9699 Posted September 30, 2011 Share Posted September 30, 2011 I am curious why more old car owners do not install PVC systems? I have done this to all of my old Caddy's and Olds. I did not like the fumes rolling out from under the car at every stop. The negative pressure literally pulls the oil back into the engine where it belongs. I used a flame arrestor on the oil tube and ducted it into the inside of the paper air cleaners to prevent oil from messing up the the paper filters on my 59 and 62 Olds (when I had them 30 years ago). And it makes a tree hugger happy.I have seen a mod to the rear main on the Caddies - it should work on all the oldies in general - Even bullet nosesI have also driven brass wedges into the the area between the block and "rope" seals to tighten up the existing seal. Dropped the pan but never pulled an engine and transmission for simple fix to oil puddles.A piece of cardboard as previously suggested is great as is using some old or new "free" carpet ruminate.Just my poor man's way of solving an 100 year old problem.Ron Link to comment Share on other sites More sharing options...
Richard1 Posted October 1, 2011 Share Posted October 1, 2011 by the time I thought about it on my Corvair I had already put things together. I would have required pulling the engine cover.Need to remember that on the Renault. Link to comment Share on other sites More sharing options...
Guest rsd9699 Posted October 2, 2011 Share Posted October 2, 2011 New rope seals need to be "packed" into the groove on both the block and cap then trimmed long and packed some more as the shaft rotation will loosen the rope at the seam of the block and cap causing a real oil leak. It must be packed flush - any rope threads caught between the block and cap will also cause oil leaks. My motor manuals go into lots of details on the better way to stop oil leaks than my factory manual.Ron Link to comment Share on other sites More sharing options...
Guest stephenx Posted October 2, 2011 Share Posted October 2, 2011 Hi, My name is stephenx and I am new here in this forum. Hello to all fellow members and i hope i will have a great time with you guys. Regards stephenxok now i will go through my issue. i have recently bought the Hyundai i20 and i have found that slightly oil leak from where the gearbox joins the bell housing. does anyone face this issue ? can anyone suggest on this issue.............. Link to comment Share on other sites More sharing options...
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