Fuel leak from Injector pump

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deskinthewoods
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Fuel leak from Injector pump

Post by deskinthewoods » Sun Oct 28, 2018 7:52 am

I've tracked a fuel leak to here:
fuel leak.jpg
fuel leak.jpg (47 KiB) Viewed 1021 times
Would there be an easy fix like a replaceable seal or gasket behind this bolt or am I looking at a rebuild situation?

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Growlerbearnz
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Fuel leak from Injector pump

Post by Growlerbearnz » Sun Oct 28, 2018 2:40 pm

From the dirt, it looks like it's leaking from the timing port blanking plug- the little bolt in the middle. There should be a copper washer under the bolt head to seal it, but copper washers can get hard and stop sealing (especially if they've been used a few times).

I'd try replacing the copper washer with a new one and see if that fixes it.

If it's leaking from the larger plug, you can buy a VE pump rebuild kit and replace the O-ring, but finding the special 3-sided socket might be tricky.
Nothing says "poor workmanship" more than wrinkles in the duct tape.

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deskinthewoods
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Fuel leak from Injector pump

Post by deskinthewoods » Sun Oct 28, 2018 3:58 pm

From what I observed while the engine was running it is the larger one. I’ll modify a socket to work....somehow...a challenge!!! :-D

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Growlerbearnz
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Fuel leak from Injector pump

Post by Growlerbearnz » Sun Oct 28, 2018 4:05 pm

Yup, a large 6-sided socket, then grind out the 3 sides you don't need. But check on Ebay first, it might...

Yeah, ok, $15. Not worth the hassle of making your own... https://www.ebay.com/itm/3pcs-Socket-Se ... :rk:3:pf:0

Cheaper than the rebuild kit!
Nothing says "poor workmanship" more than wrinkles in the duct tape.

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deskinthewoods
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Fuel leak from Injector pump

Post by deskinthewoods » Sun Oct 28, 2018 4:22 pm

Rebuild kit and sockets ordered.

Thanks again, GB!

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deskinthewoods
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Vehicle: 1991 L300 Star Wagon named "Wilson"
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Fuel leak from Injector pump

Post by deskinthewoods » Thu Nov 08, 2018 8:37 am

So, after doing some reading and looking at the diagrams
Exploded View of pump.jpg
Exploded View of pump.jpg (52.96 KiB) Viewed 917 times
I was thinking to just replace what seals I can without actually removing the pump from the engine.

Is this foolish or am I being prudent?

edit: just found the other threads on this topic.

viewtopic.php?f=6&t=18222&p=134992&hili ... ng#p134992

viewtopic.php?f=6&t=18212

I'll change what I can reach and see how it goes...

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Growlerbearnz
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Fuel leak from Injector pump

Post by Growlerbearnz » Thu Nov 08, 2018 1:31 pm

Sounds like a plan. I advise against removing the pump head (the steel block on the back that your leaking plug is screwed into, to replace seal #2). It's a pain to reinstall with the pump on the workbench, I wouldn't want to do it with the pump bolted to the engine.
Nothing says "poor workmanship" more than wrinkles in the duct tape.

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deskinthewoods
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Fuel leak from Injector pump

Post by deskinthewoods » Tue Nov 20, 2018 4:43 pm

Easy as pie. (with the great advice from GB) Got the special sockets, disconnected the two upper injector lines to gain access, the big plug came out easily. Replaced o-ring #9 (the old one was very hard and flat). Put everything back together and bled the injector lines (all of them just to be sure) and it fired right up.

I noticed a coolant leak from the rad hose so tightened that hose clamp.

Drove to work today and this evening all is dry: no fuel leak, no coolant leak. (BONUS: last Saturday it started no problem at -15C without plugging it in :-D )

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