engine assembly question

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Lee_Petrie
10+ Years
10+ Years
Posts: 309
Joined: Sun Dec 11, 2005 6:25 pm
Zip Code: 60436
Tractors Owned: 1957 Cub w/fast hitch restored
1948 Cub w/fast hitch (early style depth control) being restored
Location: Joliet, IL.

Re: engine assembly question

Postby Lee_Petrie » Wed May 06, 2015 1:51 pm

Hi again Dave,
Here are a couple of pictures, from my extremely bad '48 cub valve seat, as you see on the first picture "Cub44" they're still "very small" black spots where rain water leaked into valve area ( pictures shows my 3 angle method on an early cuts) , causing heavy pitting ! Picture #2 shows the end of the seat cutting , just going to start the lapping process ( the seat hole is getting quite large by this time ), cleaning up the tooling cuts and mating it with the "new" oversize valve , with a finish ,pre-grinding cut as well !
I know things will work out great at your end ! Lee Petrie, Joliet, IL.

Image

Image

User avatar
Lee_Petrie
10+ Years
10+ Years
Posts: 309
Joined: Sun Dec 11, 2005 6:25 pm
Zip Code: 60436
Tractors Owned: 1957 Cub w/fast hitch restored
1948 Cub w/fast hitch (early style depth control) being restored
Location: Joliet, IL.

Re: engine assembly question

Postby Lee_Petrie » Wed May 06, 2015 3:30 pm

Dave,
1/16" appears right where it should be at , with the mating surface !
Sound like you got things under control. Lee Petrie, Joliet, IL.

Dave (69 lo-boy)
10+ Years
10+ Years
Posts: 373
Joined: Tue Sep 30, 2003 7:52 pm
Zip Code: 23047
Location: Doswell, Virginia

Re: engine assembly question

Postby Dave (69 lo-boy) » Wed May 06, 2015 4:38 pm

Here are two of the valve seats, I can see some very minor pitting, the exhaust seats have a little more, but not much.
What do you think?
Image

User avatar
Lee_Petrie
10+ Years
10+ Years
Posts: 309
Joined: Sun Dec 11, 2005 6:25 pm
Zip Code: 60436
Tractors Owned: 1957 Cub w/fast hitch restored
1948 Cub w/fast hitch (early style depth control) being restored
Location: Joliet, IL.

Re: engine assembly question

Postby Lee_Petrie » Wed May 06, 2015 7:19 pm

Hi Dave, Looks like their "might" be some issues , could you send me a PM . with some closer ( more detailed ) pictures or just send a PM and I'll attach my email address , for the pictures your not able to load on the post ! I'll be happy to do whatever I can, giving my best thoughts ! Lee Petrie, Joliet,IL.


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