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Old 02-21-2004, 05:15 PM
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Interesting point about slow diesels

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.
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Old 02-21-2004, 05:31 PM
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Thank you

Hello Aron
Your warning is appreciated.
Have a great day.
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Old 02-21-2004, 09:00 PM
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Did you replace the rings with some material other than rubber, like something less likely to deteriorate?
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Old 02-22-2004, 11:00 AM
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Two new rubber O rings should come with a new fuel filter. I actually only replace mine every second fuel filter change. Aaron's comments may make me rethink my procedure.
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