MrMarty51
Full Access Member
- Joined
- Oct 25, 2012
- Posts
- 7,782
- Reaction score
- 10,000
- Location
- Eastern Montana
- First Name
- Martin
- Truck Year
- 1978
- Truck Model
- K20
- Engine Size
- 400
On My 93 K1500, OP had dropped to about 15 pounds at around 200,000 miles.
The coolant pump started leaking, pulled it, thought, well, long as I`m down this far, time for a new timing chain/sprocket set. Got the cover off, the chain had stretched so far that it would almost touch back on itself between the sprockets. Installed new set, dropped the oil pan, installed new oil pump and drive.
After that, oil pressure went back to 45 hot on the road and 35 at idle hot.
well worth the effort.
The coolant pump started leaking, pulled it, thought, well, long as I`m down this far, time for a new timing chain/sprocket set. Got the cover off, the chain had stretched so far that it would almost touch back on itself between the sprockets. Installed new set, dropped the oil pan, installed new oil pump and drive.
After that, oil pressure went back to 45 hot on the road and 35 at idle hot.
well worth the effort.