i need to replace o rings on wet sleeves of my 7321. at present only one is leaking and i want to repair that one without breaking the tractor apart. if i remove the head, rod and piston from that cylinder, is there an easy way to remove the sleeve without using any special tools. also how do i find correct postion for valve adjustment after reinstalling sleeve and head? thanks
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7321 wet sleeve seals
- Thread starter hillbilly
- Start date
- Joined
- Jul 5, 2003
- Messages
- 4,020
- Location
- Laag Zuthem
- First name
- Renze
Machinery:
1976 5718
1978 5718 35kmh: Work in progress
1967 3011
I havent done this myself, but have seen others doing it:
The valve pushrods are married to the cups and rockers etcetera. mark them and re-install to the exact same position as you removed them.
The local dealer used a kind of lever, and a piece of wood to pull sleeves, and to push them back. it was a lever with a stand, the stand was placed on top of the block, and the pull arm was strapped around a piece of wood under the sleeve.
pushing back, he bolted the lever onto a head bolt, to push it on a piece of wood to prevent scratches and damage.
I dont think the valve gear needs re-adjustment if you put everything back to the original place, because it is a side mounted camshaft design.
I do think it is possible to do the job with only one head, the oil pan and one connecting rod and piston removed.
The valve pushrods are married to the cups and rockers etcetera. mark them and re-install to the exact same position as you removed them.
The local dealer used a kind of lever, and a piece of wood to pull sleeves, and to push them back. it was a lever with a stand, the stand was placed on top of the block, and the pull arm was strapped around a piece of wood under the sleeve.
pushing back, he bolted the lever onto a head bolt, to push it on a piece of wood to prevent scratches and damage.
I dont think the valve gear needs re-adjustment if you put everything back to the original place, because it is a side mounted camshaft design.
I do think it is possible to do the job with only one head, the oil pan and one connecting rod and piston removed.
thanks for info, this was what i intended to try but didn't know if the seals were so tight that they might need to be pressed out and back in. after discovering water in the oil, i borrowed a small pump and pressurized the radiator, with the oil pan removed, you can look up from underneath and see water coming from the offending cylinder. thanks again.
