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General Information => Troubleshooting => Topic started by: qman123 on February 24, 2008, 11:10:47 am
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'86 Golf 1.6NA--leak is coming from under the IP. How can I tell if it's the pump itself or the cold start lever gasket or what?
I'm a novice mechanic but want to learn how to do more on my own. Is replacing the IP too difficult for my limited experience? Advice? Thanks.
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If it runs good then the internals are still good so you probly don't need a rebuild, I would say just buy a seal kit off ebay and fix it yourself. Some of the seals are easy to change with the pump on the car and others need the pump took off and they're still perty hard to change. The pump can't leak except through bad seals. good luck!
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Check out this thread. It pretty much explains everything you'll need to know about dealing with a leaky IP.
http://vwdiesel.net/phpBB/viewtopic.php?t=12170
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ULSD? :x
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ULSD? :x
Indeed. I just got 2 calls this week for old MK1 diesels with leaking injection pumps. Both were good runners until about 3-5 months of running ULSD. The Jetta I tinkered on Saturday was literally pouring diesel out at about 5-8 ounces/minute.
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Are there any other places that I can expect a fuel leak because of the ULSD changeover and shrinking seals?
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Is this the seal kit that will work for me?
"Rebuild Kit for Bosch VE Diesel Injector Pumps. This will work for 1.5, 1.6L volkswagen injector pumps and will replace all of the major seals that tend to leak after 10 years. If you have a 1.9L pump, non-TDI, the kit will work for you. If you have a TDI pump, the seals won't work for you."
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Is this the seal kit that will work for me?
"Rebuild Kit for Bosch VE Diesel Injector Pumps. This will work for 1.5, 1.6L volkswagen injector pumps and will replace all of the major seals that tend to leak after 10 years. If you have a 1.9L pump, non-TDI, the kit will work for you. If you have a TDI pump, the seals won't work for you."
You'll need a Bosch DGK 126, and then you'll have to buy the input shaft separate. There may be a kit that included the input shaft seal, but I think Bosch does not include it in the DGK 126 kit. YOu can buy the seal separately for about $5-10. Call your local Bosch dealer and they'll give you prices.
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Personally when I find a leaky pump I hook the feed line up to a bottle of ATF and run the car until the bottle is about empty at various RPMs. Then I let it sit overnight. Next day the leak is usually fixed.
I recommended this to a few people on the boards but have not heard anything back (that I saw anyways)
I'm 2 for 2 and use the cheap canadian tire stuff
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Personally when I find a leaky pump I hook the feed line up to a bottle of ATF and run the car until the bottle is about empty at various RPMs. Then I let it sit overnight. Next day the leak is usually fixed.
I recommended this to a few people on the boards but have not heard anything back (that I saw anyways)
I'm 2 for 2 and use the cheap canadian tire stuff
some ATF has stuff to swell seals up and stop leaks right?
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I think it all has a seal conditioner
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Personally when I find a leaky pump I hook the feed line up to a bottle of ATF and run the car until the bottle is about empty at various RPMs. Then I let it sit overnight. Next day the leak is usually fixed.
Very interesting! Using this technique, how long is it before the leak shows up again? Do you just rev your car up in the driveway, or actually drive it around? I assume most of the ATF gets sent back to the fuel tank, but I guess this isn't a problem. Do you think this would work on my main pump head seal? Any particular ATF you would care to recommend? Thanks.
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Personally when I find a leaky pump I hook the feed line up to a bottle of ATF and run the car until the bottle is about empty at various RPMs. Then I let it sit overnight. Next day the leak is usually fixed.
This sounds interesting, I haven't ordered anything yet so I'd like to give this a try. ATF is automatic transmission fluid? Can you describe this process a little more for me. How do you hook the feed line up to the bottle? I'd like give it a try and see what happens. Thanks.
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Well, I tried it last night. I had a pump head seal that was leaking about 2 drips per second. After running a quart of ATF through the pump, and letting it sit overnight, the leak is down to about 1 drip every 3 seconds. I think I might try it again today, and let it go a full 24 hours and then see what I get. It is definately better than it was!
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yes auto tranny fluid. Basically take the feed line from the filter off and stick it in a bottle of ATF. I don't drive around because then you can't monitor the level of fluid and you don't really want to run out of fluid. Yes some will go back into the tank, but it's not much of an issue as far as I know. (I'm not an expert by any means).
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yes auto tranny fluid. Basically take the feed line from the filter off and stick it in a bottle of ATF. I don't drive around because then you can't monitor the level of fluid and you don't really want to run out of fluid. Yes some will go back into the tank, but it's not much of an issue as far as I know. (I'm not an expert by any means).
yes it will work! i tried it on mine ! just let the fluid sit in the pump for awhile is the best!
what messed me up was i decided to rebuild my injectors and the greater pressure needed for my injectors triggered my leak again! but if you don't change nothing else it will work fine!
so take it as borrowed time and prepare for another pump or a reseal!
Duane
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you don't really want to run out of fluid.
Um...what will happen if you do? And how do you get it started again? Because it happened. The hose end was not where I thought it was in the bottle. I hope I didnt screw up royally. :oops:
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It's not a huge problem. The quickest way to get it started again is to remove the fuel return banjo bolt from the top of the IP (its the one that says "OUT" on the top of it). Remove the bolt, and carefully wipe away any debris that may be surrounding the bolt hole. Then, fill up the pump with CLEAN, FILTERED diesel fuel though the opening. Put it back together and crank it over. It should fire right up.
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How much diesel? I've been filling it for hours now and have only used about a half cup to a cup of diesel. I've tried to start it when I think it's full but it's not running yet. I've tried it three or four times now. :cry:
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You fill it until the fuel comes out the top of the pump. That's why I said to clean the area around it: so dirt does not go in when you fill it, or float into the pump once the fuel is flowing out.
If your pump is bone dry, it should take about 1/2 quart to fill it back up again.
Once you've got fuel pouring out of the top of the pump,out of the return hole, put it all back together and crank it over. It won't want to start right away, but keep cranking until it fires. Or, you can crack the injector lines until the air comes out, and then re-tighten and crank. It takes about as long either way, but if you don't loosen the injector lines, you have less fuel spilled in your engine bay.
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The seals are still leaking badly. Guess I'm going to have do the reseal. Thanks for all the help.
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I'm going to try it tonight. I need some borrowed time. I'll let you know what happens.
Out.
Greg