Rear main seal installation
Good Morning,
Hope everyone had a wonderful Christmas!
...
Just finished Weber/electric fuel pump installation Wednesday. Took my little truck out for about 20 minutes, put a big simile on my face. Runs very very well, far better then at any time since I bought it (about 3 yrs. ago, just after which mikuni carb/jet valve/oil pum and more all began to fail). I posted elsewhere this motor went of local rebuilder shortly thereafter including motor R&R, he screwed everything imaginable up and the truck has been sitting ever since.
Turns out I had blown head gasket (never overheated, no consensus amongst my friends who looked at it why it failed). Had head redone, reinstalled along w/Weber etc.
According to speedometer truck had under 130k original miles.
After test drive, took about 15 minutes looking everywhere for leaks. Fuel hookups/coolant leak free. But... and this was present before head gasket blew and I parked it, my MM leaked a good pint of oil from rear seal just during this "leak check". I'm going to fix this in next few day. I've never done (install on engine stand or replace from underneath) a rear seal, would really appreciate best/detailed advice.
So several questions:
Quote:
Originally Posted by
BradMph
Attachment 6553
Notice the rear main seal parts above. You need to oil the seal and the crankshaft a lot so that the seal does not flip the seal lip over while sliding it into place. Grab both sides of the seal and turn it as your pushing it on, sort of like driving a car and turning wheel back and forth. Do it evenly until it cannot go any further. The next thing to put on is the seal ring. This will determine if you’re going to have a leak or not, if done wrong. The ring has to go on the seal and protect it. The ring also has a hole on one edge that looks like a drain hole or lube hole. This hole must be at the bottom or 6 o'clock position when placed onto engine.
I'm looking at NAPA's seal/gasket set, which does not appear to include the "seal ring" you describe. Should I expect to see this when I drop trans? ... or do I need to purchase one?
mikewarme recommends a "repair sleeve". I found one herehttp://www.discountautoparts.com/cat...al-seals/99315 for about $35, NAPA's main store here has one (they call it speedy slave) for about $55.
That's the part mikewarme describes, correct?
How is this installed, specifically relative to the catalogue diagram BradMPH posted above?
Quote:
But, before it goes on you need to put this stuff called anaerobic sealer on the seal and the ring's lower 1/2. This special sealer glue will not dry when left in the plain air; it only hardens when everything is bolted together and creates an air tight seal from the air. This glue stuff keeps the rear main seal from spinning and leaking and seals the ring up against the main seal. This is important if you want the seal to not leak.
Thanks for that Brad.
This rebuild has been a nightmare with bad builder... turned into about $3500 spent total. Too close to having things nice to not finish it up well. Not having done seal before, a bit nervous and doing my best to look into this in detail so I get it right the first time.
FWIW, purpose in this restoration is to simply have a very dependable old truck that I don't have to worry about taking out across a few states (planning trip to Spokane late this spring). Paint is faded, a couple little nicks in body here & there. Plan on leaving it that way, just want reliable. Already redone wheel bearings, u-joints, a few broken window cranks and such... it's pretty solid except for finishing up what I describe here.
Thanks in advance.