dieselfume
Member
Hey all,
Just bough another 4630 to help out with work around the ranch, so by the time it gets here I hope to have the parts together to overhaul the 4630 I already have. this poor engine was worked hard when we got her with approx 12-14000 hours on the clock, and I've easily put another 1000 on it since then. The blowby is getting bad enough now that it blew the front seal out last fall, the rear seal out this spring (soaking the clutch) and now it's pushing out out through the timing cover gasket.
I feel it's time to do a major inframe.
The previous owner told me that they put a new cam in it at about 8000 hours, so I don't think I'll be touching that.
I can get a major inframe kit with the front cover gasket for $1450 with hi comp pistons.
Deere tells me they cant get the hi comp pistons, and their overhaul kit is $1750 plus I'll need to buy a timing cover gasket.
Anyone have thoughts on which kit I should go with? or maybe a different one?
Should I replace the oil pump regardless at this high of hours?
I'm assuming my head will need new valves if it's not cracked, but if the head is no good, do I replace it with a JD head, aftermarket casting, or will a 466 head swap to the 404 and give me better efficiency?
Any thoughts on this before I get the parts coming is greatly appreciated!
DF
Just bough another 4630 to help out with work around the ranch, so by the time it gets here I hope to have the parts together to overhaul the 4630 I already have. this poor engine was worked hard when we got her with approx 12-14000 hours on the clock, and I've easily put another 1000 on it since then. The blowby is getting bad enough now that it blew the front seal out last fall, the rear seal out this spring (soaking the clutch) and now it's pushing out out through the timing cover gasket.
I feel it's time to do a major inframe.
The previous owner told me that they put a new cam in it at about 8000 hours, so I don't think I'll be touching that.
I can get a major inframe kit with the front cover gasket for $1450 with hi comp pistons.
Deere tells me they cant get the hi comp pistons, and their overhaul kit is $1750 plus I'll need to buy a timing cover gasket.
Anyone have thoughts on which kit I should go with? or maybe a different one?
Should I replace the oil pump regardless at this high of hours?
I'm assuming my head will need new valves if it's not cracked, but if the head is no good, do I replace it with a JD head, aftermarket casting, or will a 466 head swap to the 404 and give me better efficiency?
Any thoughts on this before I get the parts coming is greatly appreciated!
DF