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BillinAlberta 
Silver Level
Joined: 12 Sep 2009
Location: Saskatchewan
Points: 358
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 Topic: 7020 injectors
Posted: 03 Jul 2023 at 3:08pm |
Well my project 7020 has developed a knock that is intermittent. Cracking the fuel lines with the engine running showed up 2 cylinders with no change leading me to believe that the injectors need work. I have never been into the fuel systems on an Allis 301. Would it be reasonable to replace all the injectors with rebuilt units first and see how it goes? Are there any rebuilders that have a good reputation that are reasonable cost and ship to Canada?
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Lynn Marshall
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Joined: 13 Sep 2009
Location: Dana, Iowa
Points: 2427
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Posted: 03 Jul 2023 at 3:48pm |
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While the injectors may very well need attention, the problem is getting them removed without damaging the copper tubes they sit in. Regardless of how difficult it is to remove them, I would definitely have new tips installed on your injectors or someone else's rebuilt ones.
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BillinAlberta
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Joined: 12 Sep 2009
Location: Saskatchewan
Points: 358
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Posted: 03 Jul 2023 at 5:48pm |
I am thinking a rebuilt injector assembly would have new tips .
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Ron(AB)
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Joined: 27 Dec 2009
Location: Alberta
Points: 962
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Posted: 03 Jul 2023 at 6:01pm |
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Any local diesel shop will rebuild them. eg. Camrose diesel
The challenge is if the copper tubes come out with the injectors. Then you have to remove the head and install a new copper tube(s). Makes a small job a lot bigger...
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405, 7000, 7050, 8050, 8070, L3, 2300 & 2600 disk
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BillinAlberta
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Joined: 12 Sep 2009
Location: Saskatchewan
Points: 358
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Posted: 03 Jul 2023 at 6:10pm |
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Great news about the copper tubes. It is a long ways to Camrose from here. I'll see who I can find.If I have to pull the head I might bite the bullet and redo the whole engine as a winter project.
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MACK
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Joined: 17 Nov 2009
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Posted: 03 Jul 2023 at 9:28pm |
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Don't twist the injectors to get them loose. Best to soke them good with WD40 and try to pull them straight up. MACK
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Tim NH
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Joined: 16 Oct 2012
Location: Lancaster NH
Points: 1126
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Posted: 04 Jul 2023 at 8:18am |
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I pulled the injectors on my 7000 using two pry bars for equal pressure after soaking like Mack said. Sent them to injection pump Ed who's on here. Tim
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1950 WD 1959 D14 1955 WD45 1976 7000 B 207
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BillinAlberta
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Joined: 12 Sep 2009
Location: Saskatchewan
Points: 358
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Posted: 04 Jul 2023 at 11:01pm |
All 6 came out easy and the copper liners stayed in place. I also found a shop in the 'toon that will work on them.
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DrAllis
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Joined: 12 Sep 2009
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Posted: 05 Jul 2023 at 6:31am |
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You sir, are a lucky man !! Carry on ....
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Amos
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Joined: 11 Sep 2009
Location: Ontario
Points: 1318
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Posted: 06 Jul 2023 at 7:40pm |
It happened once in my life
its all the other times i seem to remember more vividly....
I have been putting copper anti seize on the ones I install for a few years, have not had trouble taking any of them out, but they haven't been in for decades yet either
Edited by Amos - 06 Jul 2023 at 7:45pm
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BillinAlberta
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Joined: 12 Sep 2009
Location: Saskatchewan
Points: 358
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Posted: 16 Jul 2023 at 9:53am |
So I pick up the rebuilt injectors tomorrow. I can lightly coat them with anti seize . Any hints for reinstallation?
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