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  #1  
Old 01-06-2021, 10:33 AM
jpliddy jpliddy is offline
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Default injection pump leak

well folks this is the 1st leak ive had on my injection pump in 20 years of ownership ,
the leak is at the back end just behind the round disc with 4 allen ket screws
theres a 10mm nut which the accelerator plate turns on diesel is coming up through the nut area and seeping down both sides of the injection pump
sorry about the detailed names of the parts im not familiar at the moment .
question is can it be fixed easy i have pinched the nut up a bit is this wrong the
accelerator cable plate still moves freely .
just hope someone can help
regards jim
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  #2  
Old 01-06-2021, 09:24 PM
ngoma ngoma is offline
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Sorry your description doesn't ring a bell.

The top cover? But it has more than 4 allen head screws. Side cover maybe? Which side?

The accelerator runs down thru the top cover, a common place for a leak, there. Small o-ring seal.

In the meantime, PROTECT THE HEATER HOSES RUNNING UNDERNEATH THE IP FROM DRIPPING FUEL.

Otherwise the fuel will deteriorate the hoses and leave you with the high probability they will blow at a sooner than expected inopportune time. Instant overheat!

Priority number one.
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  #3  
Old 01-07-2021, 10:04 AM
jpliddy jpliddy is offline
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Default injection pump leak

hi all , sorry for confusion !
i took car to a diesel engineers today . the leak appears to be in the throttle shaft they said . they want to fit new seal .new bush and new throttle shaft ,
so i said yes booked in for a week today . leak was bad first drive this morning but not as bad when i had been driving . won't be going far for a week now .
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  #4  
Old 01-07-2021, 03:26 PM
ngoma ngoma is offline
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The throttle shaft seal is one of the common leaks I mentioned above (using your term "accelerator"). Almost always a new o-ring seal fixes it. Have never seen where it needed a new bushing, although is is possible if the throttle shaft has excessive play (slop). For it to need a new throttle shaft indicates that it must have been leaking a very long time.

If it's a good shop and technician, the reseal can be done with the IP still in place.

Wouldn't hurt the remind the tech to matchmark the throttle lever to the throttle shaft before he removes the lever, and:

PROTECT THE HEATER HOSES RUNNING UNDERNEATH THE IP FROM DRIPPING FUEL.

Here is a photo of the throttle shaft and its o-ring seal: (Thanks to
Tom Bryant, Wiscasset, Maine https://thosbryant.wordpress.com/)

from
https://thosbryant.wordpress.com/201...-pump-re-seal/

About 2/3 down, where he says: "Install a new o-ring on the “throttle” shaft:"

Here is another photo of it, getting ready to be installed into the top cover:




Fair warning: Often, the first IP leak to emerge is an early signal that others are on their way...
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  #5  
Old 01-08-2021, 08:12 AM
jpliddy jpliddy is offline
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Default pump leak

thanks for your advice , the people who are fixing my pump leak are just diesel engineered so they should be good . your advice is very good but i cant say too much on how to do the job ,they will have done this repair before many times i think over the years . some one said its critical that the new shaft goes back in the correct position as it effects the running and starting of the car .
i have studied some of the photos on tom bryants web site and seen the shaft
with the tiny notches around it and 3 on the washer or bush as it enters the injection pump .
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  #6  
Old 01-08-2021, 10:13 AM
ngoma ngoma is offline
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Quote:
Originally Posted by jpliddy View Post
...some one said its critical that the new shaft goes back in the correct position as it effects the running and starting of the car...
Good that is good indication that they are on top of it.
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  #7  
Old 01-10-2021, 07:31 AM
jpliddy jpliddy is offline
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Default injection pump

hi Ngoma
just hope that they can fix the leak , without taking the pump off the car as you know the job becomes a lot bigger , my car give a good bit of smoke on start up now ive notice and a bit lumpy . but that could be down to that i still need to replace glow pugs 5 and 6 when weather picks up it still fire up 1st time and once its hot the engine sounds ok .there are plenty on Utube whereto engines are lumpy on start up so as these engine are old now some of it down to that maybe
regards jim
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  #8  
Old 01-10-2021, 01:10 PM
ngoma ngoma is offline
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IP throttle shaft reseal with IP still mounted on engine has been done many times successfully in the past.

And at least one time unsuccessfully (by me). Inadvertently overly stressed the governor cage while attempting to keep it hooked up when manuvering the cover into position. Didn't fail immediately, but several months later the car stalled on the freeway, was difficult to restart, and would die above idle. The spring cage had broken.

I like the method Tom Bryant devised: a throttle shaft extension tool allowing better access and ability to make the internal connections. Keeps things better aligned and non-stressed when re-fitting the top cover.
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  #9  
Old 01-11-2021, 12:37 PM
jpliddy jpliddy is offline
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hi Ngoma
i have been in touch with tom Bryant via email he's a really nice guy .
he offered to do all the seals on the pump if i shipped it to him ,
but at this moment i have the car booked in for 1 seal the task is great i have no skills to remove the pump . then get it back on the car and retimed
this is a job i will have to give a lot of thought to as im in the hands of the current diesel men at the moment as i said to tom if this job goes bad im at a loss no way to turn .
wish me luck i will need it
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  #10  
Old 01-16-2021, 02:26 AM
jpliddy jpliddy is offline
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Default help diesel pump leak

hi all
well took my D24 to diesel eningeers yesterday . they fitted new THROTTLE SHAFT and bush and seal .
well went for a drive this morning and diesel leak is worse than before so im feeling down at the moment .
car started but a lot more smoke the cold start chock cable stop was not in the same position as its should be 10mm cable showing other side of the stop which travels in when engine is warm . so think that needs adjustment too .
also i see a lot air bubbles traveling up the clear plastic tube from the fuel filter
back to the top of the pump ,
do i have big problems with the car now ?
all comments appreciated .regards jim
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