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| Urgently need Help http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=3&t=85983 |
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| Author: | CharlRSA [ Sat Jan 14, 2017 5:12 am ] |
| Post subject: | Urgently need Help |
Good day guys. I am Charl from South Africa, great site you have. I have a problem with my KJ leaking diesel. On inspection i saw that it is spraying out diesel from a pipe that comes from the fuel return block. Unlike all the Pictures i saw on here mine is using a 4 way Steel Block. 1 Return to tank 2 Return from Pump 3 Return from injectors 4 Not connected "cause of leak" Can someone please assist me, must that small hose be connected somewhere or not, if yes where must i connect it? It is a soft rubber pipe I have searched everywere and tried finding a place it must connect to without any luck of solving this issue. Advice would be greatly appreciated |
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| Author: | flash7210 [ Sat Jan 14, 2017 8:43 am ] |
| Post subject: | Re: Urgently need Help |
It should have the following return connections: Return from pump Return from fuel rail Return from injectors - long narrow hose Return to tank If your return block is broken you might be able to make a new one using brass fittings and nipples. |
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| Author: | RobSmith [ Mon Feb 20, 2017 5:00 pm ] |
| Post subject: | Re: Urgently need Help |
Hi All. I've also got a very slight but annoying diesel leak - and just can't see where it is coming from. I cleaned the engine down and I could run it for around 5 miles before I could even smell any diesel, let alone see it. But then after a few more mile the smell is back and there are signs of diesel being flung around off the fan belt. I've tried holding a piece of cardboard in as many places as I can think of - and no telltale splatter anywhere. Any thoughts? I've seen on eBay some additive that makes diesel glow under UV light - has anyone tried this and does it help find annoying minor leaks? Thanks |
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| Author: | JeepinJarhead03 [ Tue Feb 21, 2017 3:24 am ] |
| Post subject: | Re: Urgently need Help |
yeah the uv dye works , you may end up needing to give it a quick degrease with gunk engine deagreaser then blow it dry with compressed air before doing it so that you can trace the run back to the source without it being dispersed through dirt and grime napa/carquest/etc should have the dye in stock, anyone who does regular parts service for automotive shops will have it |
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| Author: | RobSmith [ Tue Feb 21, 2017 12:39 pm ] |
| Post subject: | Re: Urgently need Help |
Thanks JeepinJarhead03. That's given me the confidence to go ahead and order one of the kits. There are so many additives around - many of them bogus. I wanted some assurance that these UV ones do work - and wouldn't just clog my injectors and lead me into a world of pain. I'd already cleaned the engine with Junk but that didn't help - by the time the leak was visible diesel was splattered all over again making it impossible to track the source. I'm hoping with the additive I'll be able to spot the source of the leak before it has the chance to spread although I suspect it will turn out to be hidden under the large hose that runs along the side of the head (RHS as you face the engine bay and which makes it impossible to see what is going on. Maybe I'll also need a mirror on a stick to really get in up close. I'll let you know how I get on once the kit arrives. |
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| Author: | GordnadoCRD [ Tue Feb 21, 2017 6:12 pm ] |
| Post subject: | Re: Urgently need Help |
I'm really interested in what you find. The engine driven fan tends to blow things back away from the front of the engine, so if it's the serpentine belt flinging the fuel around, the means of fuel getting that far forward are fairly limited. One thing that comes to mind though, is the cooling fan on an alternator draws air from the back to the front. Just below the alternator is the CP3 fuel pump. It's likely that you're homing in on your problem already, but if, instead of a drip, you find a nasty mess all over the back of your alternator, you may have more than one fuel leak. The block you speak of, someone, I believe Papaindigo, had a picture with the original fuel return junction block, with a replacement one fabricated from brass fittings. I suppose steel would also work if the threads were well sealed. I've been trying to find the photo but unsuccessfully so far. Perhaps someone else knows what I'm talking about and where it is located. |
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| Author: | WWDiesel [ Tue Feb 21, 2017 10:00 pm ] |
| Post subject: | Re: Urgently need Help |
GordnadoCRD wrote: The block you speak of, someone, I believe Papaindigo, had a picture with the original fuel return junction block, with a replacement one fabricated from brass fittings. I suppose steel would also work if the threads were well sealed. I've been trying to find the photo but unsuccessfully so far. Perhaps someone else knows what I'm talking about and where it is located. This what you looking for?  
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| Author: | GordnadoCRD [ Wed Feb 22, 2017 12:12 am ] |
| Post subject: | Re: Urgently need Help |
Yes, precisely. Thank you, WWDiesel. On mine I noticed that the plastic block was being pressured every which way, and seemed more likely to break when attached. I just made sure all the connections were tight, removed the bolt, and left it hang loose so it can get comfortable however it wants to be. No leaks so far and the tiny fitting for the injector return isn't being bent so much. |
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| Author: | RobSmith [ Tue Apr 18, 2017 9:10 am ] |
| Post subject: | Re: Urgently need Help |
Sorry to be so long responding - it took a while to run the tank almost empty before adding the Ring RLD4 to the diesel as it only works diluted in a max of 3 gallons and I don't do that many miles in my Jeep! Anyway I cleaned the engine bay with Gunk, mixed the Ring RLD4 in about a cupful of diesel, tipped this into the tank and within 5 mins I'd found my leak - really impressed by how well the additive works and how simple it made finding my leak. It said in the instructions to run the engine for a few mins before looking for signs of a leak but I found that almost as soon as I started the engine after adding the additive to the tank, the fuel in the filter bowl began glowing nice and bright under the UV torch. Then as I watched, a glow very gradually appeared around #1 Injector. Rather than this being blown backwards by the fan as I'd expected it would, the black plastic timing cover acted as a wind shield - meaning the diesel ran forward instead, trickled down the gap between the timing cover and the head and onto the serpentine belt idler pulley - from where it then spread everywhere. The reason I'd not been able to spot the leak was as it was running forward, the top cover was staying nice and dry - it was the rest of the engine bay that was splattered all over. A new set of leak-off hoses/connectors - plus a quick tighten of the high pressure pipe nut just in case whilst it was uncovered - and no more leaks. So if you have an annoying hard to find leak - I'd highly recommend this additive. It saved me so much time and hassle. It is supposed to work equally well with Petrol and Oil leaks. Ring have another additive that works for air-con leaks. 
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| Author: | WWDiesel [ Tue Apr 18, 2017 10:33 am ] |
| Post subject: | Re: Urgently need Help |
Glad you found your leak and it turned out not to be something major! UV dye for diesel fuel is available in the states on eBay and Amazon, and at Grainger or O'Reillys if anyone needs some.... Just do not confuse fuel dye with AC dye as they are totally different products.... 
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