electric fuel pump line routing
|
||||
---|---|---|---|---|
Home away from home
![]() ![]() ![]() |
I need to replace the original (mechanical pump) fuel line in my 2106. The car is also fitted with an electric pump that is plumbed via the Jim Dougherty method (dual lines to engine). I am considering a bit more elegant method as set out in Buck's method, but I am wondering about its effectiveness in preventing fuel to the crankcase.
There were brief comments here about the effectiveness of a check valve vs. duplicate lines. https://packardinfo.com/xoops/html/modules/newbb/viewtopic.php?topic_id=8202&viewmode=flat&order=ASC&type=&mode=0&start=0 I would like to hear more about the pros and cons of each method if you folks are so inclined. Thanks, Mark
Posted on: 2014/6/7 15:55
|
|||
|
Re: electric fuel pump line routing
|
||||
---|---|---|---|---|
Home away from home
![]() ![]() ![]() |
Thanks Howard,
I am leaning toward the two-line method. I think I can clean things up a bit by running the two lines right next to one another, if that is possible. Since the electric line was an add-on, its line snakes through a different path and just looks rather sloppy. I am concerned about clearance with side by side lines where they go past the radiator support and where they snake around the shocks, but I think there is room. I'm thinking I should add some rubber tubing at strategic spots and perhaps some method of tying the lines together to avoid abrasion.
Posted on: 2014/6/7 17:00
|
|||
|
Re: electric fuel pump line routing
|
||||
---|---|---|---|---|
Forum Ambassador
![]() ![]() ![]() |
I think two lines in parallel would look very neat. Problem might be finding dual push in clips for the lines. Restoration Specialties has dual push in clips for 3/8 & 1/4 or 5/16 and 1/4 but no dual 5/16 so possibly a push in type like we use in our size is not available..
The 5/16 size seems to be an oddball. McMaster has a dual clip for 3/8 and with a piece of thin rubber hose as a spacer over the lines at each location might work and be presentable. Might also be able to use two single clamps back to back. I think the push in holes are all accessible so a nut and screw or if needed a sheet metal type bolt could be used to hold the clips. Much as I dislike plastic, McMaster does have a dual plastic 5/16 clamp on box like thing that might work in a few strategic spots to keep lines together and vibration down-- the area under the radiator and where it is suspended under the doors for example. Getting around the shock will be tight but I think doable. Will be a lot easier if you use the cupronickel tubing instead of the original steel. That is what I wound up using and was able to bend most by hand.
Posted on: 2014/6/7 17:40
|
|||
Howard
|
||||
|
Re: electric fuel pump line routing
|
||||
---|---|---|---|---|
Home away from home
![]() ![]() ![]() |
I finally found some 5/16 copper/nickel up here. Wow, what a difference from steel. Also, I discovered that if you are going to double flare, get the tool by Rigid and forget the auto parts store version.
I was thinking of using the original style clips for one line and then attaching the second line right next to, or above, as required for clearance in tight spots. Maybe something better than the cable ties that it came with. Small band clamps might work where they don't show, or perhaps I can find a separate clip or some less modern looking clamp that would join two 5/16 lines. Thanks Howard, Mark
Posted on: 2014/6/7 18:15
|
|||
|
Re: electric fuel pump line routing
|
||||
---|---|---|---|---|
Home away from home
![]() ![]() ![]() |
I would use a pair of Adel clamps (aviation term, just google "cushioned clamp") on a single screw or bolt at each clamping location. Better and cleaner than the cable ties and won't chafe the lines.
In my car I am going to install an electric pump but just a pulse type in series with the mechanical pump, I hope that the only time I'll need it is for priming the system after long layoffs. After that the mechanical pump should be enough. So, no extra lines for me so far.
Posted on: 2014/6/7 21:21
|
|||
1952 Model 200 Deluxe Touring Sedan
HA's 52 Grey Ghost "The problem with quotes on the internet is you never know if they're true" - Abraham Lincoln |
||||
|