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HD6 344 Conversion to 7000

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mahto48 View Drop Down
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Joined: 29 Mar 2013
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    Posted: 21 Jun 2013 at 12:03pm
Well I am about finished changing my HD6 344 to a 7000 engine. Once I am up and running I will post on the problems I ran in to and the sulutions for anyone who might want to do this conversion. I am concerned about running the old oil bath air filter with this turbo charged system. Does anyone have information on this subject?
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Mactractor View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Mactractor Quote  Post ReplyReply Direct Link To This Post Posted: 21 Jun 2013 at 8:01pm
First thing I thought of when contemplating the repower was air consumption. Have not seen an HD6AG with 7000 to know what air filtration they used, but dry cleaners on 6000 powered HD6 have nowhere near enough capacity. I bought a much bigger Donaldson assembly to adapt (9"). Donaldsons parts books show air consumption for most American built engines
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Ian Beale Quote  Post ReplyReply Direct Link To This Post Posted: 22 Jun 2013 at 3:01am
MacT
 
The Donaldson list I saw did it by cubic inches displacement
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mahto48 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote mahto48 Quote  Post ReplyReply Direct Link To This Post Posted: 22 Jun 2013 at 12:02pm
From what I can glean from Donaldson web site the 7000 motor moves 300 cfm. The 6000 moves 218 cfm. The D344 cid motor only moves 143 cfm. Looks like I better build a better air filter than the old oil bath on the HD344 Confused. Thanks for the input and any futher suggestion on this subject.
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Silencer223 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Silencer223 Quote  Post ReplyReply Direct Link To This Post Posted: 01 Sep 2015 at 11:52pm
How did this work for you.
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orangeman View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote orangeman Quote  Post ReplyReply Direct Link To This Post Posted: 02 Sep 2015 at 4:43am
Mahto 48 - Excellent topic - looking forward to your analysis of the changeover. 
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Ian Beale Quote  Post ReplyReply Direct Link To This Post Posted: 02 Sep 2015 at 5:12am
Mahto 48

Sounds to me that something is not right in your engine breathing calculations - or I'm up the proverbial creek

Presumably (afik) they're all 344 cid?

So at 1800 rpm (I'm punting from 516 experience here) it will be breathing

344 x 1800 x .5 ( as 4 stroke) ci/min = 180 cfm

So how do the 6000 and 7000 ones get to 218 and 300 cfm?

Mind you I'm all for bigger aircleaners - particularly with the dust we get in our part of Oz. A friend used to fit whatever he got with a big Donaldson ahead of whatever was standard with a telltale stud in the intake tract with a dob of grease to show any dust.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote DiyDave Quote  Post ReplyReply Direct Link To This Post Posted: 02 Sep 2015 at 5:52pm

 
Allis Chalmers 2900
 turbocharged diesel
 6-cylinder
 liquid-cooled
 301 ci [4.9 L] 
Bore/Stroke:3.875x4.25 inches [98 x 108 mm] 
Air cleaner:dry
Compression:16.25:1
Rated RPM:2200
Idle RPM:775-2465
Firing order:1-5-3-6-2-4
Starter volts:12
Oil capacity:16 qts [15.1 L] 
Oil change:100 h 
Coolant capacity:22.5 qts [21.3 L] 
Coolant change:2000 h 
Intake valve clearance:0.015 inches [0.381 mm] (hot)
Exhaust valve clearance:0.015 inches [0.381 mm] (hot)
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ac_sd View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote ac_sd Quote  Post ReplyReply Direct Link To This Post Posted: 02 Sep 2015 at 7:24pm
I'm sure you are correct in your concerns, the old oil bath almost certainly won't handle the air flow with the turbo'd 7000 engine ! If you could get the system off an HD-7G that would likely be ideal or a modified newer dry cartridge capable of the required air flow!
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Post Options Post Options   Thanks (0) Thanks(0)   Quote split Quote  Post ReplyReply Direct Link To This Post Posted: 19 Feb 2016 at 3:15pm
Originally posted by mahto48 mahto48 wrote:

Well I am about finished changing my HD6 344 to a 7000 engine. Once I am up and running I will post on the problems I ran in to and the sulutions for anyone who might want to do this conversion. .....


Any update?
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Silencer223 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Silencer223 Quote  Post ReplyReply Direct Link To This Post Posted: 26 Feb 2016 at 1:08pm
My HD6G is running AWSOME with the 7000 engine. I found a big double filter air cleader assy. off a Broce broom for 20 bucks at the local tractor salvage yard. I mounted it between the hydro tank and the loader arm and piped 3.0 in pipimg down through the hood to the turbo. The filter intake is 4.0 so I mounted a Cat precleaner on it. Its a powerfull setup.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote split Quote  Post ReplyReply Direct Link To This Post Posted: 26 Feb 2016 at 1:13pm
Do you have any pictures of the conversion?
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Silencer223 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Silencer223 Quote  Post ReplyReply Direct Link To This Post Posted: 07 Mar 2016 at 4:42pm
Reposting smaller pics.

Edited by Silencer223 - 07 Mar 2016 at 5:04pm
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Silencer223 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Silencer223 Quote  Post ReplyReply Direct Link To This Post Posted: 07 Mar 2016 at 4:45pm
Sorry, pictures came out a little large. I can stuff a big block in a lawn mower but cant use a computer very well.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Silencer223 Quote  Post ReplyReply Direct Link To This Post Posted: 07 Mar 2016 at 5:09pm
Try these pictures.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Silencer223 Quote  Post ReplyReply Direct Link To This Post Posted: 07 Mar 2016 at 5:14pm
Just one more of the beauty queen. Im proud of her as you can tell. She just needs a little lipstick now.
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LeonR2013 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote LeonR2013 Quote  Post ReplyReply Direct Link To This Post Posted: 03 Apr 2016 at 8:06am
I once went with a much larger dry filter on a road tractor and it made a big difference. No doubt more is better. Less makes the exhaust temp. higher, not good. If you have a truck salvage close to you, why not go there and pick up a large canister. From looking at the one in the previous post it looks like there is a convenient spot to mount it. You're on the right track and you'll be happy as a clam when you beat the system. Leon R  Cmo
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Post Options Post Options   Thanks (0) Thanks(0)   Quote LeonR2013 Quote  Post ReplyReply Direct Link To This Post Posted: 03 Apr 2016 at 8:15am
Silencer, you've done a good job there and you have the right to be proud. It sure looks good to me. I just wish I wasn't too old to do these things again. Well maybe not too old(75) this summer, just pretty well broke down. But I can still dream can't I? Leon R  Cmo
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Post Options Post Options   Thanks (0) Thanks(0)   Quote orangeman Quote  Post ReplyReply Direct Link To This Post Posted: 03 Apr 2016 at 8:58am
Air Filter up high out of the dust zone, nice selection for the air cleaner and nice location.  Keep up the good work.  

Would be great to see a video of it running!!!

Thanks - Orangeman
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