Cooling holes in Cylinder casting

Peter R · Nov 19, 2017

Hello all, With the cylinder on the workbench, I found something that I never noticed before : There are four 3/16" drillings beween the cylinders of approx. haf an inch deep, should not these go all the way trough ? these holes serve no purpose as they are now imo.
any thoughts ?

L.A.B. · Nov 19, 2017

Peter R said:
Hello all, With the cylinder on the workbench, I found something that I never noticed before : There are four 3/16" drillings beween the cylinders that of appox haf an inch deep, should not these go all the way trough ? these holes serve no purpose as they are now imo.
any thoughts ?.

They should pass all the way through but due to their small size, can block easily.

Peter R · Nov 19, 2017

Thanks for your Reply Les, I tried to pry through these holes with a drift without succces, so a job for the drill press then.

Torontonian · Nov 19, 2017

Start cuttin'.

robs ss · Nov 19, 2017

I used a long 1/4" drill and a Dremel and really opened this area up on my 650
The head needed similar attention
Cheers
Rob

Cooling holes in Cylinder casting

Peter R

L.A.B.

Moderator

Peter R

Torontonian

robs ss

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