Update on new 1948 cub

[1948cubnovice]

Had some time to work on the new cub today all the intake valve were stuck . It also has a stripped head bolt going to put a Helicoil in that's the only way i can think to fix that . There was a lot of trash on top of the valves but no rust in the cylinders .

[Pap]

That ain't pretty. Looks like you are going to get to have a little bit of fun.

[CSA_CUB]

WISHING YOU LUCK!

[Bill V in Md]

I reviewed some of your previous posts and noticed that you had lapped the valves sometime around October of last year. Did this buildup happen since then?

[Jim Becker]

Bill, I think this is a different tractor, newly acquired.

[Bill V in Md]

Bill, I think this is a different tractor, newly acquired.

Aha, that’s what I get for being nosey.

[1948cubnovice]

I reviewed some of your previous posts and noticed that you had lapped the valves sometime around October of last year. Did this buildup happen since then?

No Sr. new cub just picked up last week .

[1948cubnovice]

Just an update for the cub got it cleaned up up and back to get her compression test didn't go as well as I had hoped
No 1 60 lbs
No 2 30 lbs
No 3 30 lbs
No 4 50 lbs
What does everyone think I should do now?

[Bob McCarty]

If that was dry, you need to do a wet compression test to determine if it's rings or valves.

[1948cubnovice]

If that was dry, you need to do a wet compression test to determine if it's rings or valves.

That is wet dry was much worse

[SamsFarm]

Time to measure the bores and pistons to see if they are in or out of spec.

And measure ring gaps with the rings removed from the pistons and set in a bore, squared up using the face of a piston in the bore.

With that data you can decide if you need just new rings, or a bore job, new pistons and new rings!

[tst]

kinda a mess on the valves, you may want to pull those valves and check seat condition

[Eugene]

kinda a mess on the valves, you may want to pull those valves and check seat condition

I would start with the valves first. Check the condition of the valve faces and seats. The wet compression test should have been much better if the rings were the major fault.

You may still have to do a major engine overhaul. Valves first.

[1948cubnovice]

kinda a mess on the valves, you may want to pull those valves and check seat condition

I would start with the valves first. Check the condition of the valve faces and seats. The wet compression test should have been much better if the rings were the major fault.

You may still have to do a major engine overhaul. Valves first.

I may just do an engine swap I have a second engine that came with the first cub I got going to pull the head and see if it looks any better

[1948cubnovice]

Anyone know a way to repair a missing drive lug on a magneto