Hello to all,,
I recently bought a 1951 TO20 that was in pieces due to what I was told was the throttle stuck on the Grandpa and kicked #4 rod cap thru the driver side under the starter. I dismantled the engine and after some research, ordered some Nickel 55 weld rod and did what I think is a successful repair of the small window in the block. After the weldup, I used the "Diesel test" and after gouging and rewelding 3 small seeps there are no more seeps. There was also one small piece of the block at the very bottom where the 2 sleeve Orings go that had broken. The bottom of the two ORings did not have any meat to seal on. I repaired that as well.
I happened to see a video on YouTube that showed a "repair" on the small areas adjoining the liners at the very top of the block. I looked at my block and it also has 2 of these hairline cracks between #2 and #3 cylinders but do not appear to have leaked coolant at these points.
I then bought a set of liners with pistons and that Guy told me these MF's were prone to cracking at that spot,,BUT,,,some leaked coolant into cylinder and some did not.
I must be missing something,,as I cannot see how the coolant can get into the cylinder if the cylinder head has a good seal to the top of the liners,,,? I asked the PO and he says he never had to add any coolant and he was never aware of a problem with loss of coolant.
Your Comments Please. Any help,,??
I recently bought a 1951 TO20 that was in pieces due to what I was told was the throttle stuck on the Grandpa and kicked #4 rod cap thru the driver side under the starter. I dismantled the engine and after some research, ordered some Nickel 55 weld rod and did what I think is a successful repair of the small window in the block. After the weldup, I used the "Diesel test" and after gouging and rewelding 3 small seeps there are no more seeps. There was also one small piece of the block at the very bottom where the 2 sleeve Orings go that had broken. The bottom of the two ORings did not have any meat to seal on. I repaired that as well.
I happened to see a video on YouTube that showed a "repair" on the small areas adjoining the liners at the very top of the block. I looked at my block and it also has 2 of these hairline cracks between #2 and #3 cylinders but do not appear to have leaked coolant at these points.
I then bought a set of liners with pistons and that Guy told me these MF's were prone to cracking at that spot,,BUT,,,some leaked coolant into cylinder and some did not.
I must be missing something,,as I cannot see how the coolant can get into the cylinder if the cylinder head has a good seal to the top of the liners,,,? I asked the PO and he says he never had to add any coolant and he was never aware of a problem with loss of coolant.
Your Comments Please. Any help,,??
