 Bosch Fuel pump, EDIT: electrical connections on bosch 69414 small post is + |
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| malcolm2 |
 Apr 27 2014, 09:02 AM
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#1
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Advanced Member  Group: Members Posts: 2,747 Joined: 31-May 11 From: Nashville Member No.: 13,139 Region Association: South East States 
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I purchased a new fuel pump. The current one is a BOSCH, but it is a different part #. The electrical connections are different. My installed unit has the blade type connector. The new one has posts. The new one has 1 large post and 1 smaller post.
I marked the current one, so I would re-connect the wires the same way the PO did. Which wire goes on the large post? Ground or power? Maybe it just doesn't matter, cause they put no instructions, at all, in the box. |
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| Qarl |
Apr 27 2014, 09:07 AM
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Shriveled member Group: Benefactors Posts: 5,233 Joined: 8-February 03 From: Florida Member No.: 271 Region Association: None  |
Photo?
IF it has the red and blue studs, the larger of the two is the positive connection (usually red). The smaller of the two is negative (usually blue). As far as the original connection... brown is ground (negative). |
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| malcolm2 |
Apr 27 2014, 09:13 AM
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#3
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Advanced Member Group: Members Posts: 2,747 Joined: 31-May 11 From: Nashville Member No.: 13,139 Region Association: South East States
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QUOTE(Qarl @ Apr 27 2014, 10:07 AM)  Photo? IF it has the red and blue studs, the larger of the two is the positive connection (usually red). The smaller of the two is negative. As far as the original connection... brown is ground (negative). no color on the new unit studs or the old unit spades. My 1st thought was larger stud was 12v. web photo with studs |
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| sdthomas |
Apr 27 2014, 09:34 AM
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#4
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Member Group: Members Posts: 64 Joined: 14-June 11 From: Seattle Member No.: 13,193 Region Association: Pacific Northwest
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I recently purchased one of these and it took me a while to figure out that the posts are marked + and -, they are just really hard to see because they are in the brown plastic around the poles.
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| malcolm2 |
Apr 27 2014, 09:44 AM
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#5
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Advanced Member Group: Members Posts: 2,747 Joined: 31-May 11 From: Nashville Member No.: 13,139 Region Association: South East States
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QUOTE(sdthomas @ Apr 27 2014, 10:34 AM) I recently purchased one of these and it took me a while to figure out that the posts are marked + and -, they are just really hard to see because they are in the brown plastic around the poles. YOU ARE CORRECT! With an LED flash light I can see them. And the SMALL one is +. The marks are on a small "bridge" between the electrical connection and the small fuel port. The "bridge" angles down and the marks are on the 45 deg face. I am going to dab alttle paint from my white paint pen to help the next guy. Or me, next time. Thanks so much. Clark |
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Posts in this topic
malcolm2 Bosch Fuel pump Apr 27 2014, 09:02 AM
Qarl Larger is positive
See correct info below.
Depen... Apr 27 2014, 09:38 AM
malcolm2
Larger is positive
No it is not. I would have... Apr 27 2014, 09:45 AM Qarl Wow... different than several of the other Bosch p... Apr 27 2014, 10:08 AM |
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