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SuperDuke
Member
Member # 16213
Reged: 09/06/01
Posts: 120
Loc: Reading, PA
Turning up Roosa Master 6 cylinder rotary pump
#779230 - 06/27/02 09:47 PM

I've search the internet far and wide and can't find a single thing on the Roosa Master injector pumps. It's on a 6 cylinder John Deere tractor. I'd like to turn it up and get some good black smoke coming from it. I've had the pump semi-apart. I think I have to do something with the spring which activates the fuel delivery. I'm sure I could take it somewhere and have it done but the pump intrigues me and I'd like to figure the thing out.
I hope someone out there has some experience or can point me in the right direction.

Thanks

John

Fred Hemer
Member
Member # 427
Reged: 04/05/99
Posts: 6143
Loc: Nanaimo B.C. CANADA
Re: Turning up Roosa Master 6 cylinder rotary pump new
#779284 - 06/27/02 10:26 PM

Rosamaster is standyne I beleive!If you do a search in the 6.9 or 7.3 forum you will find what u need to know!Search turning up fuel pump i'm sure you'll find sumthing.

Fred Hemer
Member
Member # 427
Reged: 04/05/99
Posts: 6143
Loc: Nanaimo B.C. CANADA
Re: Turning up Roosa Master 6 cylinder rotary pump new
#779295 - 06/27/02 10:32 PM

heres one
Click Here

Your pump is mounted on the side of the engine so sum of the directions do not apply!I beleive u will find the side cover and most of the other instructions are usable.

[Link edited to eliminate left-to-right scrolling -- Diesel Jay]

Edited by Diesel Jay (06/27/02 11:44 PM)

SuperDuke
Member
Member # 16213
Reged: 09/06/01
Posts: 120
Loc: Reading, PA
Re: Turning up Roosa Master 6 cylinder rotary pump new
#779763 - 06/28/02 12:35 PM

Thanks Fred. I'll do some more looking on the subject. I now have a bit better idea what to look for. I'll see what I can do.

john

Fred Hemer
Member
Member # 427
Reged: 04/05/99
Posts: 6143
Loc: Nanaimo B.C. CANADA
Re: Turning up Roosa Master 6 cylinder rotary pump new
#782580 - 07/01/02 11:59 PM

Duke check this out Zig just did up this article It should give ya what ya need!
http://www.members.shaw.ca/k2pilot/Injection%20pump%20adjustment%20article.htm

SuperDuke
Member
Member # 16213
Reged: 09/06/01
Posts: 120
Loc: Reading, PA
Re: Turning up Roosa Master 6 cylinder rotary pump new
#783396 - 07/02/02 07:56 PM

Fred-

Thanks for the good article. Unfortunately, that is not the pump I have, but what I'm going to do is open up the pump and look for an allen screw. Seems simple enough. Thanks again, and if you find anything else please pass it along.

John

Fred Hemer
Member
Member # 427
Reged: 04/05/99
Posts: 6143
Loc: Nanaimo B.C. CANADA
Re: Turning up Roosa Master 6 cylinder rotary pump new
#784097 - 07/03/02 12:49 PM

my mistake sorry Pal!

L. Wilkinson
Member
Member # 11879
Reged: 03/11/01
Posts: 820
Loc: Abbotsford, Canada
Re: Turning up Roosa Master 6 cylinder rotary pump new
#784141 - 07/03/02 01:28 PM

John, some of the Rosa Master pumps have fuel screw access with the top cover removed. This in itself is a bit tricky as you have to re-register part of the governor/shut off linkage from the ignition solenoid which resides within the top cover on reassembly. However, with cover off, you once again rotate engine to line up 5/32 allen screw at about 12 oclock, or straight up. It becomes visible through an opening in the alluminum pump housing. Turn in for increase. Use care when restarting, infact it wouldn't hurt to have the air intake uncovered for a choke off plate ready to stall engine incase of trouble. Good luck, Lorne.
PS, Fred, will be on holidays now for a while, won't be able to reply to you in case you choose to rethink the "Dark Side" issue in regards to my IDI's happy zone!!

Fred Hemer
Member
Member # 427
Reged: 04/05/99
Posts: 6143
Loc: Nanaimo B.C. CANADA
Re: Turning up Roosa Master 6 cylinder rotary pump new
#784178 - 07/03/02 01:57 PM

Have a safe trip! Check the safe zone for my retort!

SuperDuke
Member
Member # 16213
Reged: 09/06/01
Posts: 120
Loc: Reading, PA
Re: Turning up Roosa Master 6 cylinder rotary pump new
#784319 - 07/03/02 04:03 PM

Guys-
One of my friends watched a guy turn up one of these pumps. The info you guys are giving is starting go along with what I have heard. Apparently the top of the pump does have to be taken off. The pump has to be somewhat disassembled ( ).

Obviously I’m risking damaging the pump getting into this. I think if I am very careful and take it apart slowly, I’ll be able to find this magic screw and put it back together. Now I just need to find the time to mess with it. Hopefully none of this requires special tools. In that case I’ll have to throw in the towel.

Thanks again. I will post back with results when I get the thing apart.


modifiedoneton21
Member
Member # 19585
Reged: 02/05/02
Posts: 435
Loc: Westchester, IA
Re: Turning up Roosa Master 6 cylinder rotary pump new
#785905 - 07/05/02 08:58 PM

Hey Duke I'm all for turning the fuel up on a green one! I only have experience with the in-line used on the late 404's and 466's 4640 at about 230 at the shaft what a horse! I have a question though what engine model and tractor are you refering to? My concern is turning the fuel loose on a tractor that will do a lot of idling, the excess fuel combined with the low combustion temps will not ignite the fuel and wash the oil off the cylinder walls. With the old rotary pump on a turbocharged tractor especially, 4320-4520 1066-1566 these all use the old style rotary pump, what I'm getting at is most of these do not have the aneroid function. Which means it does'nt care if the motor has 20 p.s.i. manifold pressure or not it will dump fuel. The Deere series I listed above were'nt very fuel efficient for that reason. Say at 50% load they will deliver the same amount of fuel as they would at full load. The new Deere's and new Magnums all utilize this function for economy and cleaner air. Bottom line is keep it warm to burn the fuel if this tractor is used in the field that won't be a problem if it doesnt have a cooler I'd put one on they're all over in the salvage yards.

SuperDuke
Member
Member # 16213
Reged: 09/06/01
Posts: 120
Loc: Reading, PA
Re: Turning up Roosa Master 6 cylinder rotary pump new
#788851 - 07/09/02 01:24 PM

The tractor itself is a JD 4010. Perhaps a 1968-70 model. I am not sure what displacement the engine is. I am trying to get it setup for tractor pulling (farm stock class) and having a tough time.

The motor runs rough at WOT, almost like a miss on a gasser. It will smoke some, but I do not have comparable power to the other guys pulling. They smoke black. I had the injectors checked out. Turns out one injector has 6 holes in the tip and the others have 5. Not sure if this is a problem or not.

I tried to advance the timing, but the pump hits the engine block and I cannot go any further. So I dropped the oil pan and tried turning the oil pump drive gear a tooth. But that moved it way too far so I put it back together as it was.

Setting the timing the marks line up perfect for a 4020 motor. I am beginning to think the motor was rebuilt and had 4020 parts put in, except the injector pump is still for the 4010 and is not delivering enough fuel at the higher rpms.

I guess I need to bite the big one and try taking the pump apart to find a turn up screw.

I understand what you are saying about the fuel delivery, engine temps, and oil. The tractor is not used much for other than pulling, unless another tractor needs repair. It does have an oil cooler on it.

Some of my friends are putting out about 110hp. I guestimate mine to be about 75hp. Also, any idea where I can buy a set of 18.4-38 pressed steel wheels and hubs for this tractor?

Thank you for the help!


FL70CAT
Member
Member # 17752
Reged: 11/23/01
Posts: 509
Loc: Newburg, Pa.
Re: Turning up Roosa Master 6 cylinder rotary pump new
#788970 - 07/09/02 03:41 PM

All injectors should have the same holes. I suspect one failed and somebody jury rigged in the WRONG injector into one of the cylinders.
That sounds like the miss to me.

You might actually want to remove all the 5 hole injectors and the mismatched 6 hole one.Then replace them with 6hole ones that have been extrude honed out and had the pops set up.

SuperDuke
Member
Member # 16213
Reged: 09/06/01
Posts: 120
Loc: Reading, PA
Re: Turning up Roosa Master 6 cylinder rotary pump new
#789507 - 07/10/02 07:52 AM

FL70CAT

I agree that all injectors should have the same tips. Unfortunately a new tip costs about $75. Multiply that by 5 or 6 and my wife will kill me. Once the motor gets a load on it (2400 rpm max stock) and pulls down to about 2000 rpm the engine runs smooth. Above that rpm it really makes a racket. I have even had it backfire on me.

John


modifiedoneton21
Member
Member # 19585
Reged: 02/05/02
Posts: 435
Loc: Westchester, IA
Re: Turning up Roosa Master 6 cylinder rotary pump new
#793689 - 07/14/02 10:39 AM

IF you have a local implement or tractor dealer see if hee has the hubs to mount bolt-on duals on this tractor once you get a hold of these pull the stock cast wheels off slide the dual hub on backward so it dished in instaed if out and mount the wheel dished in, this should get the tires in where you want them. Since this is a stock class I take it you can't run a blower. I believe a 4110 either had a 329 or 359 not sure it should be cast on the block. A guy I know that works for deere here has a 4010 NF with a 466 he took from a 4640 it smokes a lot he's running a modified bosch in-line pump.

FL70CAT
Member
Member # 17752
Reged: 11/23/01
Posts: 509
Loc: Newburg, Pa.
Re: Turning up Roosa Master 6 cylinder rotary pump new
#793864 - 07/14/02 03:50 PM

How much is a new motor from the abuse of uneven cylinder firing ??

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