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214 Posts
I just got a 79 300td that needs a lot of help. I've fallen in love and we're stuck together so it has become quite a project.
It sat in the rain for a long time neglected, and then someone did an inadequate conversion to SVO. Just a primer pump, coolant heated filter & extra-hot glow plugs, no other heaters (although it was in really warm weath in central Cali for most of that) and ran it like that for a couple years without doing all the work a long-neglected diesel needs.
I'm gutting out the interior and doing lots of rust removal, and starting with a lot of fluid changes. It's been about 1500 miles and I just did the second oil change, did a Moly Diesel Purge, about to do the atf & power steering fluid/filter changes.
The valves were adjusted shortly before I got it and supposedly the compression was good but don't know the numbers. Going to do a compression test soon.
Anyways, it has a lot of blow-by. Steamy air that will rattle the valve cap.
I was going to drive another few hundred miles and let the new oil flow through before worrying about it, but I just found out that SVO can cause piston rings to stick, which can then cause blow-by.
So, I'm wanting to move forward with something that will help unstick the piston rings. Maybe Moly Motor Clean? Or another additive?
Any other suggestions?
It sat in the rain for a long time neglected, and then someone did an inadequate conversion to SVO. Just a primer pump, coolant heated filter & extra-hot glow plugs, no other heaters (although it was in really warm weath in central Cali for most of that) and ran it like that for a couple years without doing all the work a long-neglected diesel needs.
I'm gutting out the interior and doing lots of rust removal, and starting with a lot of fluid changes. It's been about 1500 miles and I just did the second oil change, did a Moly Diesel Purge, about to do the atf & power steering fluid/filter changes.
The valves were adjusted shortly before I got it and supposedly the compression was good but don't know the numbers. Going to do a compression test soon.
Anyways, it has a lot of blow-by. Steamy air that will rattle the valve cap.
I was going to drive another few hundred miles and let the new oil flow through before worrying about it, but I just found out that SVO can cause piston rings to stick, which can then cause blow-by.
So, I'm wanting to move forward with something that will help unstick the piston rings. Maybe Moly Motor Clean? Or another additive?
Any other suggestions?