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- Thread starter jlaird
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abarth69
Jedi Warrior
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Jack
Are you still getting this? Oil under pressure?
Lots of oil like it is just running out under pressure it seems. Does not leak when engine is off. I know the scroll end plate is in there and safety wired and I know the rear bearing is in there, can't think what it might be. HELP!
Mark
Are you still getting this? Oil under pressure?
Lots of oil like it is just running out under pressure it seems. Does not leak when engine is off. I know the scroll end plate is in there and safety wired and I know the rear bearing is in there, can't think what it might be. HELP!
Mark
startech47
Jedi Knight
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There are 2 holes from the channel back to the oil pan. You can just see them in the lower part of the channel. These need to be open. Is the scroll threaded correctly for the rotation of the engine? Some cranks were set up for reverse rotation and if used in the wrong engine they will pump the oil out of the engine. Not sure which British cars this applies to. Did you check the half moon seal from the main cap to the oil pan. This seal area has been built up with brazing alloy and line bored to reduce leakage.
OP
jlaird
Great Pumpkin
Offline
Oil pressure guage is correct. Tested with air twice in fact.
Preaty sure I remember blowing those holes out with air some time ago on assembly. Something I will check again when I do this next.
Just spoke with Hap, he is scratching his head as well. His comment is take it out and run it. Take along a couple of qts of oil and check from time to time, get the rings seated for sure.
Never heard of a backwards scroll seal but supose anything is possible of course.
Love the built up on the scroll seals, that should make em tight for sure.
Going to go take a ride, back later.
Preaty sure I remember blowing those holes out with air some time ago on assembly. Something I will check again when I do this next.
Just spoke with Hap, he is scratching his head as well. His comment is take it out and run it. Take along a couple of qts of oil and check from time to time, get the rings seated for sure.
Never heard of a backwards scroll seal but supose anything is possible of course.
Love the built up on the scroll seals, that should make em tight for sure.
Going to go take a ride, back later.
OP
jlaird
Great Pumpkin
Offline
I think I screwed up. I was under the car with paper towles while it was running and saw that the leak was between the rear plate and the oil pan. I actually saw it start and run down.
No leak from the tranny drain hole, that must have been blow back. As I don't see a leak from there yet anyway, I suspect that the engine back plate is sealed tightly.
Miss Agatha is up on stands in the front, and I am going to test and retest off and on for the next hour or so.
Now I think maybe that with the leak from there and not from behind the plate at all it seems at the moment that it is not the scroll seal. Durn new gaskets and RTV in that pan as well. Oh well least I can drop the pan without pulling the engine if that is indeed what it is.
No blow by on block to speek of by the way.
No leak from the tranny drain hole, that must have been blow back. As I don't see a leak from there yet anyway, I suspect that the engine back plate is sealed tightly.
Miss Agatha is up on stands in the front, and I am going to test and retest off and on for the next hour or so.
Now I think maybe that with the leak from there and not from behind the plate at all it seems at the moment that it is not the scroll seal. Durn new gaskets and RTV in that pan as well. Oh well least I can drop the pan without pulling the engine if that is indeed what it is.
No blow by on block to speek of by the way.
Keoke
Great Pumpkin
Offline
Well I do not know Mark. However, I still think Jack has a crank case pressure problem. One way to locate it is to use a leak down test. Another is to install a PCV to invert the crank case pressure. If either of these methods identify the problem it may be that the only simple solution is to install a PCV unit on the engine. We have some big Healey engines that have required this or installation of the after market rear main seals.---Fwiw--Keoke
OP
jlaird
Great Pumpkin
Offline
Faceing forward it looks like it is rear cork gasket on right side.
Only get what looks like one drop or so from the wheep hole in the tranny after shut down.
We will see, expect tomorrow morning I will remove the pan and really goop well before I put it back. Thought I had done so but maybe not, time will tell. At least it will be one more item off of the checklist. Oh yea will check the rear scroll drain holes again while pan is off.
Only get what looks like one drop or so from the wheep hole in the tranny after shut down.
We will see, expect tomorrow morning I will remove the pan and really goop well before I put it back. Thought I had done so but maybe not, time will tell. At least it will be one more item off of the checklist. Oh yea will check the rear scroll drain holes again while pan is off.
startech47
Jedi Knight
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Make sure you degrease the pan and block where the gaskets are before putting the pan back up.
OP
jlaird
Great Pumpkin
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Pan out, rear drain hole from scroll wide open.
Yep, you can see where the leak was on back right corner, not cork. Will clean all real real good with carb cleaner and put the darn thing back tightly and hopefully this afternoon yet so the RTV had time to cure overnite. Was kind of disapointed in the amount of RTV that I had in there, will be more this time. Inside of the engine is real real clean.
Onward and.......at least the engine did not have to come out this time. Although every time now the leak has gotten smaller, guess I had a tranny leak, scroll seal leak, and a pan leak, gesh.
Yep, you can see where the leak was on back right corner, not cork. Will clean all real real good with carb cleaner and put the darn thing back tightly and hopefully this afternoon yet so the RTV had time to cure overnite. Was kind of disapointed in the amount of RTV that I had in there, will be more this time. Inside of the engine is real real clean.
Onward and.......at least the engine did not have to come out this time. Although every time now the leak has gotten smaller, guess I had a tranny leak, scroll seal leak, and a pan leak, gesh.
startech47
Jedi Knight
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Soon the leaks will be too small to notice.
OP
jlaird
Great Pumpkin
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Pan and all back in, very clean. RTV squeezrd out on all sides just a bit. Kind of like jobs that I can lay down on.
Oil in all ready to test.
Will let it set overnite and check it out in the morning.
That was really a very easy job as jobs go. Had never done that before.
SOMETHING I LEARNED: Had to back out the two bolts at the bottom of the timeing chain cover to get the front of the pan to clear. Either use short bolts there or get a 10 inch 7/8th open end wrench.
Ahhh, excuse to get a new tool.
Oil in all ready to test.
Will let it set overnite and check it out in the morning.
That was really a very easy job as jobs go. Had never done that before.
SOMETHING I LEARNED: Had to back out the two bolts at the bottom of the timeing chain cover to get the front of the pan to clear. Either use short bolts there or get a 10 inch 7/8th open end wrench.
Ahhh, excuse to get a new tool.