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Old 04-18-2000, 01:51 PM
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Aaron Aaron is offline
Join Date: Aug 1999
Location: Cincinnati, Ohio
Posts: 1,935

Another alternative to priming the system would be to just fill the canister filter all the way up to the top with diesel fuel and be careful not to spill any when re-installing it. You should then not need to use the hand pump. Those old hand pumps (the type Larry is talking about) where you have to unlock them before use can develop leaks. The solution is to get a modified one from MB that you do not need to twist to operate. They are much better. In addition, when tightening the main fuel filter (the canister) be sure not to overtighten it or else it will leak from the housing. BTW, there is also a modified housing for the older diesels now which uses 2 o-rings on the bolt rather than the top copper seal. Good luck!

Aaron Greenberg
MB technician
Precision Motorcars, Cincinnati, Ohio
'67 250SE Cabriolet
'77 450SL
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