Towed the truck to Colorado finally and now can work on it again. Stanadyne DB4 injection pump never could stop the bubbles in return line but finally tracked down the source after removing the lower intake a dozen times. Replaced lines to and from ffm and also replaced ffm housing because the water fuel sensor looked cracked exposing wires but turns out wasn’t leaking. Turns out it coming from under the injection pump. Had the hard lines off a couple of times thinking maybe I didn’t get them tight enough now they have become easy to deal with. So finally used folded paper towel 1 inch at a time starting at hard line and moving towards the front and then it showed up. So I am going to post a pic and if someone can tell me what kind or if I can get a replacement gasket without purchasing a whole gasket kit which is $100+. Thanks panran ps the part screwed in at bottom of pic
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Finally injection pump leak detected
- Thread starter panran
- Start date
Paveltolz
Доверяй, но проверяй
Maybe have saved you the cost of a gasket kit but, maybe not to your advantage.
Unless I'm mistaken, that is the 'advance cover assy. There's a seal under there, not a gasket and, of course, it's a unique one.
No idea where to source one. I'll keep looking through the manual to see if it could be something else. Hang in there.
Unless I'm mistaken, that is the 'advance cover assy. There's a seal under there, not a gasket and, of course, it's a unique one.
No idea where to source one. I'll keep looking through the manual to see if it could be something else. Hang in there.
Very much appreciated…thank you for the time. Sincerely panran
Paveltolz
Доверяй, но проверяй
PM me your email address. I'll send you the complete manual. It is too large at 5.3mb to attach here.
MrMarty51
Well-Known Member
I believe that @Quadstar Tuning LLC has the gasket/seal kits available for both styles of pumps.
But as stated, next to $100.00.
quadstartuning.com
But as stated, next to $100.00.
Overhaul Gasket Kit for DS Injection Pump
Full gasket and seal kit for DS4 injection pumps. This is the same kit used during a full rebuild and is available separately for field service jobs where you may need some or all of the seals. See below for a few items that are field serviceable. Includes: Seals and parts as pictured Key Items...
quadstartuning.com
MrMarty51
Well-Known Member
Thanks for looking. I did see some for around $55-$60 bucks and they want $20 for shipping and the weight of the package 1lb….they call them aftermarket which probably most are…which I would go with but while looking at the pictures I don’t see any that resembles that gasket (seal)I thought it was mentioned to be keyhole shaped seal…..me being an old man knew exactly what that shape looks like growing up in the 50’s most of the doors had those shaped locks and they took what was called a skeleton key…but fail to see a seal that has that shape..if anyone knows that the kit has one let me know and I will get it. I’m unsure if I want pull the IP to check it out closer and not be able to find the correct parts…the truck is outside near the barn and the area is “high plains” called “Palmer Divide” and the wind is always blowing with winter about on us thinking every intake exhaust and fluid opening will probably take in snow. Sorry I woke up after a nap and rambling but after long story in short would like to just have all the gaskets and seals that will do the job just don’t see a seal that looks like that in the kit. Unless it’s coming from another gasket but it’s right in that area..the advance stepper motor is right there..wondering if that has a gasket that could be leaking down on that area..nothing shows on the upper area.. anyhow I’m a one finger at a time texter and it’s after 1am time for bed…thanks