Detroit Diesel injectors
Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Construction and other equipment
Forum Description: everything else with orange (or yellow) paint
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=132809
Printed Date: 25 Sep 2024 at 11:20am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: Detroit Diesel injectors
Posted By: Dozer
Subject: Detroit Diesel injectors
Date Posted: 19 Dec 2016 at 7:22am
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As a winter project I decided to clean and rebuild injectors for my HD5. I recall instructions and pictures in Allis Chalmers literature that I no longer have. I am particularly interested in testing the spray pattern of the injector. If anyone is able to scan and email this information I appreciate it. ghausner@mail2george.com Local snow required that I use my HD6G to pull my car up my driveway to the road. My 4x4 could not do it. Merry Christmas |
Replies:
Posted By: darrel in ND
Date Posted: 19 Dec 2016 at 7:29am
| So, ole Shameless machine is reaching out far and wide, eh. I may have that info for you. If I don't, there is a very good chance that Coke will have it, and I am sure that he will have a much easier time knowing how to electronically getting it to you than I will. Darrel |
Posted By: Coke-in-MN
Date Posted: 19 Dec 2016 at 8:45am
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Somewhere here I may have the info - I found a trucking company I plowed snow for also had a account with a authorised DD rebuilder - had mine rebuilt and tested there - cheaper than I could work on them . See if i can find the injector literature - no promise ------------- Faith isn't a jump in the dark. It is a walk in the light. Faith is not guessing; it is knowing something. "Challenges are what make life interesting; overcoming them is what makes life meaningful." |
Posted By: DMiller
Date Posted: 19 Dec 2016 at 1:35pm
| Need a lapping block for the internal parts, extremely fine lapping compound and then a test bench that can achieve 1200-2500psi for the discharge on the nozzle tips. Not something for a home garage but a certified repair office. Most diesel fuel injection service companies can rebuild and test DD unit injectors. |
Posted By: dustydoo
Date Posted: 19 Dec 2016 at 6:20pm
| Not sure how far you are from Erie pa.! Beatty Diesel may be able to take care of them for you |
Posted By: Eric B
Date Posted: 19 Dec 2016 at 6:23pm
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Aside from the fulfillment of mastering the injector work yourself you can buy rebuilt injectors so cheap for Detroit you may not want to fool with it yourself. I don't know if there is a cheaper injector to be bought than for the old Detroits. When I bought my last set I was offered ones with 9 spray holes instead of 5. Better performance and a little less fuel consumption. I would go that route again. I don't know if they are available for smaller series Detroit but mine were for the 92 series. ------------- Currently- WD,WC,3WF's,2 D14's B. Previously- I 600,TL745,200,FL9,FR12,H3,816 LBH. Earth has no sorrow that Heaven cannot heal! |
Posted By: Coke-in-MN
Date Posted: 19 Dec 2016 at 9:23pm
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I had mine rebuilt and last time through that dealer they were $32 - normal price was about $65 - was looking at a site said exchange for $125 (seems rather high) One thing the DD shop said was replace the fuel lines every time you work on injectors - they seem to crack at the flare if over tightened or wrenched on and off a few times . (believe it's 15 ft pounds on nut) I had one crack at flare - kind of dilutes the oil fast .
------------- Faith isn't a jump in the dark. It is a walk in the light. Faith is not guessing; it is knowing something. "Challenges are what make life interesting; overcoming them is what makes life meaningful." |
Posted By: Dozer
Date Posted: 20 Dec 2016 at 7:45am
| It is something I want to do. Rebuilt Detroit injectors ($65 to $125) are less expensive than many. I have 14 core injectors to experiment with. I did inquire about newer injectors than HV6's and HV7's but my inquiries didn't yield any results. My thanks to all. |
Posted By: SteveM C/IL
Date Posted: 24 Dec 2016 at 3:52pm
Never replaced any lines and never had one crack but only torqued to 15,which seems excessive when pulling that wrench.Was told over tightening was cause of cracking. |
Coke-in-MN wrote: