[Vwdiesel] Engine knock - TD motor

[Michael Hitchings]

I have my recently acquired '81 Caddy with a TD motor from an '86 Jetta TD in it. The engine runs but it makes a horrid knocking noise when it's running. It seems to be coming from the #1 end of the engine.  I am looking for some suggestions for diagnosis.  
 
Symptoms:
- It happens when running and sounds to be once per crank revolution
- I have white smoke out the tail pipe that smells more like oil than coolant to me
- The coolant overflow bottle pressurizes when the car is running and fills up pretty fast
- As the engine accelerates, so does the knock, proportional to the engine speed.
 
Possible thoughts:
- Bent rod....I will be pulling the oil pan to check the bottom end this weekend
- Bad valve...it has hydraulic lifters, could these also be involved?
- Bad lifter?
- Head gasket bad?  This could be why the coolant is pressurizing and the knock could be from coolant in the combustion chamber
 
 
Any thoughts are welcomed and appreciated.
 
I bought the truck for $400 and I want to turn it into my daily driver...help is always appreciated!!!!!
 
Thanks,
Mikey



________________________

"Felix qui potuit rerum cognoscere causas"
[Happiness is understanding how things work]




		
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