Re: IML: 62 Rebuild Engine
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Re: IML: 62 Rebuild Engine



There is one more thought to excessive blow-by. IF the compression test, and a cylinder leak down test seems to pass, then it is quite possible the heat cross over passage in the intake/ gasket is leaking exhaust gas pressure into the crankcase. This would pressurize the crankcase and add to the blow-by problem.I've found this on a few B-RB(as well as other makes) engines that otherwise passed all testing.This would be the best case cure you could hope for.Check the intake bolts for proper torque, if they're loose, then you might see an improvement, however gasket damage may be done.A stuck-shut heat riser valve will help to promote this problem.Ya'll have a nice day, Dave.
 
-------------- Original message --------------
From: Kenyon Wills <imperialist1960@xxxxxxxxx>

> Steve's advice to drive the car is right on.
>
> You don't have much to lose besides a few quarts of
> oil.
>
> I suggest getting a tool to check compression -
> they're cheap and easily borrowed if you know someone
> with one.
>
> Test now, and in another 250 miles to see if things
> are improving or staying the same. This will also
> tell you the relative health of the rings/valves and
> whether your engine is sealing properly/evenly across
> all cylinders. I don't have the desired readings
> memorized, so go double check, but I seem to recall
> that when pressure falls below say 85 lbs, that's not
> desireable, and an engine with pretty consistent
> pressure is better than one with lots of variance,
> although the engine's design is very tolerant of
> varied pressures.
>
> I strongly disagree about putting a 440 into a 413
> car, although it will certainly work and won't be
> obvious.
>
> Your engine block and heads are likely to be
> rebuildable unless there is some sort of failure or
> crack someplace, and the leaking coolant isn't a fatal
> flaw. Try BARS STOP LEAK if you have not done so
> already - the liquid in the jug beats pellets in my
> book.
>
> There are plenty of 413 cores laying around - I
> couldn't give them away when I was selling through a
> yard of 413's and 440's...
>
> Your machine shop will be able to tell what's up if
> they get to inspect the engine.
>
> Only weak point on 413 rebuilds that I know of is
> pistons, and they're just not as common but are sti ll
> around.
>
> My position: Keep your car stock. If you do move to
> a 440, do you really want that old 413 hanging around
> your property through 3 moves and 2 states over the
> next 20 years?
>
> At the end of the day, it really doesn't matter that
> much which one you decide to do, but please don't give
> up on your 413 just yet. There may be hope.
>
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> Kenyon Wills
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