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#16
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One caveat with an electric helper pump is its flow rate... When you are running at higher RPMs some smaller electric pumps can't keep up and end up being a restriction. A fuel pressure gauge will show if this is happening.
-Jason
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1991 350SDL. 230,000 miles (new motor @ 150,000). Blown head gasket Tesla Model 3. 205,000 miles. Been to 48 states! Past: A fleet of VW TDIs.... including a V10,a Dieselgate Passat, and 2 ECOdiesels. 2014 Cadillac ELR 2013 Fiat 500E. |
#17
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But to answer your question, 24mm and you'll need a stubby.
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83 SD 84 CD |
#18
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A dollar wrench cut down to fit in there for installation is fine. I think the size is 17mm. Usually just use vice grips on the old one to loosen it. Never use them to install the replacement. Someday I might get an old primer pump that is too tight to easily loosen with vice grips but not so far.
Last edited by barry123400; 02-14-2010 at 12:29 PM. |
#19
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If you have some plumbing tools you might already have the wrench to remove it.
Members have suggested the use of a Basin Wrench for removal due the crampped space and the fact that the old style Hand Primer body has rounded corners on it that an Open End Wrench will often mush right over the corners. However, do not use it to install as it squashes the Pump Body. SDs have way less space to work in than the 123s.
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84 300D, 82 Volvo 244Gl Diesel |
#20
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vice grips worked fine, thanks
Ended up buying a cheapy adjustable wrench, cutting it off, and welding it to a busted socket to make myself a cheap adjustable version of one of those tools you can turn from a distance with a ratchet. Worked pretty well.
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This post brought to you by Carl's Jr. |
#21
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1985 Euro 240D 5 spd 140K 1979 240D 5 spd, 40K on engine rebuild 1994 Dodge/Cummins, 5 spd, 121K 1964 Allice Chalmers D15 tractor 2014 Kubota L3800 tractor 1964 VW bug "Lifes too short to drive a boring car" |
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