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Flushing...

Bottom End (crankcases and crankshaft)
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PainterRon
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Bikes: 1981 shovelhead
1948 EL Panhead

Flushing...

#1

Post by PainterRon » Mon Aug 05, 2013 5:16 am

I have my bike stripped down to bedrock. I do not want to split the cases, but I would like to flush the crankcase out. Suggestions?



john HD
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Re: Flushing...

#2

Post by john HD » Mon Aug 05, 2013 11:27 am

don't.

that is what i was told by my motor guy.

it seems that crud builds up on the inside lip of the flywheels. flushing it can dislodge it.

john

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Re: Flushing...

#3

Post by 58flh » Mon Aug 05, 2013 12:02 pm

I wouldn't use anything!--If you are sure the bottom-end is in running cond.--(measure everything-twice).Just make sure the gasket surfaces are clean & don't get it in the cases!.Proceed to finish motor!----Besides if you went that far & olny if your -Positive the bottoms-up to service!--Have Fun!--respectfully---RICHIE 8)

Cotten
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Re: Flushing...

#4

Post by Cotten » Mon Aug 05, 2013 6:06 pm

There's a time and a place for everything, Folks.
S&SPIST.jpg
I used mineral spirits to wash out the fresh aluminum gravel.

....Cotten
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PainterRon
Posts: 34
Joined: Sat Jun 29, 2013 9:59 pm
Bikes: 1981 shovelhead
1948 EL Panhead

Re: Flushing...

#5

Post by PainterRon » Mon Aug 05, 2013 6:39 pm

Cotten wrote:There's a time and a place for everything, Folks.
S&SPIST.jpg
I used mineral spirits to wash out the fresh aluminum gravel.

....Cotten
Okay, this is what I am after...any tips?

Cotten
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Re: Flushing...

#6

Post by Cotten » Mon Aug 05, 2013 7:49 pm

Ron!

Ol' Shiftless would just say "practice".

But I always spout "Patience, carefull observation, and common sense."

Beware when the last aspect reveals itself after the fact.

....Cotten
PS: John referred to deposits within the lips of the flywheels.
A literal centrifuge, particulates compact so tightly that a superficial flush may hardly touch it. It was an effective "sludge trap" that could have been improved.
(MidWestern USA machines often contain the glacial loess from roads of the day.)

One could even argue that it does the same as "Balancemasters".

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