Pagoda SL Group
W113 Pagoda SL Group => Drive train, fuel, suspension, steering & brakes => Topic started by: afibbe on November 28, 2022, 23:57:30
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The attached picture showing the top of the fuel filter holder. There are two bolts and I wanted to know what they do.
The large one will not unscrew. I have not tried holding it in a vise. I am worried about breaking the part while trying to unscrew the bolt.
I was able to unscrew the small one and the seal needs to be replaced. Where can I find a replace seal?
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The small one is an air bleed which usually not needed. It just uses a copper seal ring.
It has been many years since I disassembled this unit but pretty sure the large bolt is a plug. Correct me if I wrong though. I don't believe it has a seal since it is not supposed to be removed. I did remove mine and just used a thread sealant when it was reinstalled. I took the plug off to be plated.
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Sometimes, holes are drilled into cast parts that are needed for machining internal passages. They are then plugged.
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I put a pressure gauge in where the large screw is and it helps me troubleshoot fuel related problems