Interesting point about slow diesels

[Aaron]

Had an '84 300SD in at the shop today and the owner was complaining about very slow acceleration. So I took it for a test run and the car literally would "crawl" when the accelerator was floored. So we inspected the fuel system and found that the smaller of the two rubber o-rings on the hollow bolt that the main cannister filter screws onto was deteriorated and had blocked the inlet for the injection pump! I have never seen this before but I wanted to warn anyone who might ever experience deadly slow acceleration to check the o-rings on the hollow bolt. While we were in there we put a set of fuel filters on as well. Drove it and it was back to normal.