The Ford Barn

DannL · 08-09-2019, 11:50 AM

Has anyone used the Lucas No Leak product with any success stopping minor engine leaks? Curios in OKC.

Gary WA · 08-09-2019, 05:46 PM

What leaks are you talking about!?

Synchro909 · 08-09-2019, 06:28 PM

That stuff probbly works by softening old hard neroprene oil seals. The Model A has no oil such seals.

DannL · 08-09-2019, 09:42 PM

Quote:

Originally Posted by Gary WA

What leaks are you talking about!?

The engine leaks that are leaving oil on the concrete.

Primarily between the clutch assembly and engine (I think) which I suspect is a main that is leaking some.

dansluck · 08-09-2019, 10:16 PM

DannL I would check the main caps especially the rear and center mains. It is probably time to remove a couple of thousands of shims. This worked for my 1931 Coupe. Good Luck

Dansluck

40 Deluxe · 08-10-2019, 12:06 AM

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Quote:

Originally Posted by DannL

Has anyone used the Lucas No Leak product with any success stopping minor engine leaks? Curios in OKC.

Since there is no actual "seal" at the rear main, no type of mouse milk will help. Oil that finds its way to the back of the rear main drains back into the pan through a hole in the bearing cap. The slinger on the crank flings any oil that gets on it into the groove in the block and cap, but the slinger does not touch any part of that groove.
There is always a little oil weeping out past this "labyrinth", so backyard engineers are continually trying to "improve" the original design (with mixed results!).

DannL · 08-10-2019, 12:16 AM

Quote:

Originally Posted by 40 Deluxe

Since there is no actual "seal" at the rear main, no type of mouse milk will help. Oil that finds its way to the back of the rear main drains back into the pan through a hole in the bearing cap. The slinger on the crank flings any oil that gets on it into the groove in the block and cap, but the slinger does not touch any part of that groove.
There is always a little oil weeping out past this "labyrinth", so backyard engineers are continually trying to "improve" the original design (with mixed results!).

That sounds right. Saw a video this evening where that end cap was shown.

chap52 · 08-10-2019, 07:19 AM

It's kinda like we use to say about our old Harleys..."you can tell when it needs oil when there is not a drip spot where you parked it." Chap

08-09-2019, 11:50 AM	#1
DannL Senior Member Join Date: Jul 2019 Location: Oklahoma City, OK Posts: 184	Lucas No Leak . . . Has anyone used the Lucas No Leak product with any success stopping minor engine leaks? Curios in OKC.

08-09-2019, 06:28 PM	#3
Synchro909 Senior Member Join Date: Jun 2014 Location: Melbourne, Australia Posts: 8,043	Re: Lucas No Leak . . . That stuff probbly works by softening old hard neroprene oil seals. The Model A has no oil such seals. __________________ I sometimes wonder what happened to the people who asked me for directions. Even at my age, I still like to look at a young, attractive woman but I can't really remember why.

08-09-2019, 10:16 PM	#5
dansluck Senior Member Join Date: Dec 2014 Location: Nevada Posts: 242	Re: Lucas No Leak . . . DannL I would check the main caps especially the rear and center mains. It is probably time to remove a couple of thousands of shims. This worked for my 1931 Coupe. Good Luck Dansluck

08-10-2019, 07:19 AM	#8
chap52 Senior Member Join Date: Jun 2013 Location: Marana Arizona Posts: 1,829	Re: Lucas No Leak . . . It's kinda like we use to say about our old Harleys..."you can tell when it needs oil when there is not a drip spot where you parked it." Chap