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  #1  
Old October 4th, 2014, 08:38 PM
bish1865
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Bruce Bishop
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19j need advice

I rebuilt my 2.5 turbo diesel 19j. Everything was going well about 1200 miles worth until the other night. I was at a Starbucks drive through idled for about ten minutes all was normal until I pulled out and started off to work. I went about 200feet the engine began knocking and smoking terrible. It was like a switch was turned off. I had less than a mile to work so I idled it to work. Shut it down and had it towed home when I got in from my trip. Investigation so far was new fuel filter no help. A little dribble from lift pump. Thought maybe air in system. Changed out pump, no change. I've swap out injectors when I narrowed it down to the #2 cylinder was the knocking culprit. So I pulled the pan and check the #2 rod and bottom of the piston. Nothing found. I'm ready to remove the head for further investigation. Any other thing to check for would be greatly appreciated. Rebuild included new pump, pistons, head, bearings, timing belt. Turbo seems fine no oil in any plumbing. So any other direction to go in would be appreciated. I know I should went with a TDI. Hind sight is always 20/20 I reviewed this forum as well as UK forums nothing found
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  #2  
Old October 4th, 2014, 08:46 PM
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Jason
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Very sorry to hear that, white or black smoke?
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  #3  
Old October 4th, 2014, 08:47 PM
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Mybluett
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Compression check in all 4 shows what?
What color smoke?
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  #4  
Old October 4th, 2014, 09:53 PM
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John B.
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Have you look at the pushrods and rockers?
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  #5  
Old October 4th, 2014, 10:23 PM
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Is it possible that the crush washer under the #2 cylinder is damaged? I had a sudden knock show up on my 19J, after changing all of the rod bearings to no avail, it turned out to be just a bad washer. I hope that helps.
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  #6  
Old October 5th, 2014, 01:14 AM
bish1865
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Bruce Bishop
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It's black smoke. Could kill Mosquitos for blocks. I don't' have a compression gauge. Not sure if the parts stores have diesel gage to loan out.

------ Follow up post added October 5th, 2014 12:19 AM ------

Also no push rods or rockers bent and all valve clearances are at .10
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  #7  
Old October 5th, 2014, 03:49 AM
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Mike Hammond
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Black smoke is over fuelling or a lack of air. If it was straight over fuel it would rev it's nuts off. I'd check the induction side of things (then look for a defender 200TDI, they drop more or less straight in). Seriously, I'd then lift the head, maybe the pre combustion chamber thingy has gone west. The 19J engine isn't the best offering Land Rover ever built, whereas my 200 tdi recently crossed the 250,000 mile mark
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  #8  
Old October 5th, 2014, 07:24 AM
jwb
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Jason
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The fact that it did it after extended idle makes me think your injector boost pump diaphram is split. When mine was split it would run fine until sitting in traffic. Sometimes it would start to run-away but other times just load up, diesel knocked, and caused a smoke screen. Easy to check and replace. Delphi part # 7243-006.
http://forums.lr4x4.com/index.php?showtopic=33911

You should also confirm the injector pump is still on its timing mark.
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  #9  
Old October 5th, 2014, 01:41 PM
bish1865
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Bruce Bishop
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Thank you all for the advice. I will check out the things recommended. I've already replaced the boost diaphragm once. I know that they let go quit often. Pricey little boogers out here in California, I think about $80.00 I checked the air cleaner side of induction but not the intercooler side. Timing pins fit right in when everything is lined up.
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  #10  
Old October 7th, 2014, 07:41 PM
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Bruce Bishop
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19j advice

Update: I pulled the head today nothing found on the head or pistons. I did find the number three copper injector gasket blown out. I was a bear getting that injector out. Check out the pictures. So next step is to take the injectors in for pop test. Still baffled why the number two was knocking. Pretty obvious that the number three was an issue.
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  #11  
Old October 8th, 2014, 09:50 AM
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Richard Ordowich
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Jason, is there a US supplier for the diaphragm?

I was reading the instructions on changing it out and the symptoms and my truck is suffering from the pressure build up in the tank and suffering from a lack of power described in the instructions. Although the turbo seems to be working fine when I monitor the boost gauge. I thought I would change out the diaphragm to see if it solves the pressure problem and lack of power.
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  #12  
Old October 8th, 2014, 05:01 PM
jwb
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Jason
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Quote:
Originally Posted by richord View Post
Jason, is there a US supplier for the diaphragm?

Unfortunately I have not tried to find any boost diaphragms in the U.S. I just moved back from Europe and bought a couple while I was there. You can search the Delphi dealer locator and give them the part number, but in all likelihood they will just order from overseas as well.

http://am.delphi.com/locator/

Looks like it is about $30 (including shipping) from Delphi Parts UK.
http://www.delphipartsstore.co.uk/fuel-injection-pumps/pump-repair-parts/boost-components/delphi-boost-diaphragm_3.htm

Also, if you suspect the diaphragm (which it sounds like it is), then be careful driving it too much since the turbo could be sucking fuel through the pressure line and possibly "running away". Happened to me a few times in traffic, not much you can do other than put it in a high gear and stall it out.
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  #13  
Old October 8th, 2014, 05:50 PM
richord
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Richard Ordowich
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Thanks Jason. Appreciate the help and advice. I will replace it and see what happens. In the meantime I will be gentle with the old girl
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  #14  
Old October 8th, 2014, 09:18 PM
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Parts might be availble thru Diamond Diesel Service Inc, they have offices in Oakland, West Sacramento, CA and Sparks, NV. I've gotten stuff fo my CAV pump and had injectors done there.
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  #15  
Old October 9th, 2014, 10:00 AM
richord
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Richard Ordowich
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Ordered the diaphragm and will report back on the results once I replace it.

This site rocks.

It was Bruce's original post that I started following and learned more about the 19J engine and its quirks and then the suggestions from others lead me to the conclusion that perhaps my symptoms could be solved with a new diaphragm! Awesome community!
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  #16  
Old October 31st, 2014, 08:22 PM
bish1865
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Bruce Bishop
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My 19j is back up and running like a dream. It took a while to sort this one out but it turned out to be bad injectors. Had them tested and they were just pissing on the pistons (NOT GOOD). Four new injectors and it fired up after the third try. I had to re-adjust the valves because of lumpy running. But once that was done Wow! runs like a dream. I relocated the EGT sensor and it functions much better. So thank you to all for your input this forum is the best.
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