chain box leaks
12-28-2008, 11:16 PM
#32
Burning Brakes
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Update!! it's running again
Well I just now at 10 pm got it finished and took it for a quick test drive. Tach doesnt work, Cools really well but I think i have a refrigerent leak since I couldnt get it to come up to the correct pressure. So any one know off hand which leads are connected to the tach? I think it might have something to do with the rpm switch or I might have missed connecting a ground. Will have to look tomorrow.
01-01-2009, 04:57 PM
#33
Burning Brakes
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well the tach plug wasnt connected, works fine now. Most of the oil leaks are gone but i still have a small one from the back of the chain box.
01-02-2009, 01:59 PM
#35
Burning Brakes
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yes kind of frustrating to be sitting at a stop light 2 days after putting the engine back in to see a cloud wafting up out of the engine compartment from the oil that just dripped onto the headers.
01-02-2009, 03:35 PM
#36
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When you put in the cam thrust plate did it look centered with the cam bore journals and the hole it pushes into in the chain case?
If the heads have ever been machined down and the chain cases were than the cam thrust plate o-ring might leak oil along one side.
If one of the blobs of epoxy that covers where a steel chain tensioner shaft or stud is inserted into the chain case is too thick it will contact the cylnder cooling fins and the chain case will be held back from seating against the engine case along the back edge (which has no studs along that approximately 4" long edge) and possibly leak oil.
You should be able to slide a sheet of paper between the backside of the chain case and cylinder behind it after it is installed. Of course it's alot easier to do that before the cam is installed.
You might be able to get under there with a flashlight and shine it up in the tiny space between the back of the chain case and the cylinder, head, and cam tower and see where it's seeping from.
good luck with it...
If the heads have ever been machined down and the chain cases were than the cam thrust plate o-ring might leak oil along one side.
If one of the blobs of epoxy that covers where a steel chain tensioner shaft or stud is inserted into the chain case is too thick it will contact the cylnder cooling fins and the chain case will be held back from seating against the engine case along the back edge (which has no studs along that approximately 4" long edge) and possibly leak oil.
You should be able to slide a sheet of paper between the backside of the chain case and cylinder behind it after it is installed. Of course it's alot easier to do that before the cam is installed.
You might be able to get under there with a flashlight and shine it up in the tiny space between the back of the chain case and the cylinder, head, and cam tower and see where it's seeping from.
good luck with it...
01-02-2009, 09:52 PM
#37
Burning Brakes
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yes thats where i think it's coming from . I'll just live with it for a while. i just had it out and wasnt ready to pull the whole thing apart. The cam timing thing is a real nightmare that i'd rather not go through again for a while and I would never have got it done in time to go to the track the 11th.
