jbcottrell Posted July 27, 2019 Report Share Posted July 27, 2019 Is there a difference between fuel pumps for L16, L18, L20B? I have a 510 with a W53 head and L20B block. I ordered a fuel pump for a 510 not thinking this through. The arm on the fuel pump I got has an actuation arm the seems too short, or curved up too sharply. Is it bent? Or just plain wrong? Thanks in advance! Quote Link to comment
bilzbobaggins Posted July 27, 2019 Report Share Posted July 27, 2019 pics? I think they all pump out the same amount. I have used 2 different L20b pumps on my L16. Did you get lucky and get one of the nice ones or the cheaper stamped pumps? Quote Link to comment
datzenmike Posted July 27, 2019 Report Share Posted July 27, 2019 L16/18 are the same but the L20B is different and I think has very slightly larger body. They will all interchange in that physically they are the same. L six cylinder pumps totally won't work. The '80 720 uses an L20B and again the pump is a different part number but should swap with other L series four cylinders. The early 720 Z22 engine also has a mechanical pump but it's physically much larger again than the L series. It should also fit the earlier L series but the in and out fitting may be clocked wrong. All the drive eccentrics on the cam sprocket are the same so all the arms should be the same. All L heads have the same mounting studs. If you have an after market pump you're on your own. It might fit several other engines and not look at all like a factory pump.. Quote Link to comment
jbcottrell Posted July 27, 2019 Author Report Share Posted July 27, 2019 Great. Thanks guys. I must have gotten one that was bent! I can't take a pic because I already returned it. I will order one from another source. Any suggestions? Quote Link to comment
datzenmike Posted July 27, 2019 Report Share Posted July 27, 2019 https://ratsun.net/classifieds/category/9-datsun-parts/ Quote Link to comment
bilzbobaggins Posted July 27, 2019 Report Share Posted July 27, 2019 I got super lucky last time I bought one. Couldnt find a rebuild kit and had to have a pump. Autozone(of all places) showed a pump in stock. Went to pick it up and it was a real one, not a stamped pos one. Maybe get lucky and find one there? Quote Link to comment
jbcottrell Posted July 27, 2019 Author Report Share Posted July 27, 2019 Thanks guys!! Quote Link to comment
banzai510(hainz) Posted July 27, 2019 Report Share Posted July 27, 2019 (edited) rockauto has a cheap 510 clone pumps that look like th stock Japan made ones. I'm sure these are Chinese Buy 2 Edited July 27, 2019 by banzai510(hainz) Quote Link to comment
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