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Others Any other not listed |
02-26-2023, 07:47 PM
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#1
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Name: chw
Title: Green Behind the Ears
Status: Not Here
Join Date: Jul 2006
Member`s Gallery
Posts: 91
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How to Turn delivery valves on kubota D1305?
Anybody know how to turn delivery valves on D1305, same pump as more common D1105? Obviously I want to do this for more fuel and obviously I do so at my own risk, thank you!
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02-27-2023, 12:13 AM
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#2
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Name: mhuggler
Title: One piece at a time
Status: Not Here
Join Date: Sep 2007
Location: Uno, Pa.
Member`s Gallery
Posts: 1,523
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What turbo did you put on this d1305?
__________________
2002 2500 4x4 ETH/DEE-F1 Mach 5's/62/65/12/Smarty/ATS Ex.manifold/AFE intake/TST Comp./.020 marine gasket/o-ringed/ARP studs/5"stacks/Airdog 150/Isspro guages/Southbend 3600 DD/3.54 gears/leveling kit/Bilstein 5100frt,5150rr/37" BFG A/T's on 18" Eagle 114's/Borgeson SS/DSS
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02-27-2023, 07:36 AM
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#3
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Name: 95cummins5.9
Title: Old man ***** gossiper
Status: Not Here
Join Date: Jun 2012
Location: U.S.A
Member`s Gallery
Posts: 4,720
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I believe that's just a timing adjustment on those pumps. The fuel screw is lower rear of pump.
__________________
Quote:
Originally Posted by jfaulkner
puzzy, tune it.
I don't own anything stock, from engines to boobies I've modded them all. Life is too short to live with mediocre chit.
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02-27-2023, 07:41 AM
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#4
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Name: chw
Title: Green Behind the Ears
Status: Not Here
Join Date: Jul 2006
Member`s Gallery
Posts: 91
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Gt15
Quote:
Originally Posted by mhuggler
What turbo did you put on this d1305?
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I used a gt1544. I ran a rhb31 vz21 for about a year but it was too small, intake temps were too high with it. The gt15 seems to be much cooler but I imagine I will still end up doing intercooler or water injection. The cam am maverick turbos have some really nice small top mounts with built in fan that should work.
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02-27-2023, 07:47 AM
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#5
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Name: chw
Title: Green Behind the Ears
Status: Not Here
Join Date: Jul 2006
Member`s Gallery
Posts: 91
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Quote:
Originally Posted by 95cummins5.9
I believe that's just a timing adjustment on those pumps. The fuel screw is lower rear of pump.
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Yessir, you are right, I’ve adjusted the timing shims to advance timing as well as the rack travel screw/bolt and both worked to increase fuel. Only thing I can find left to do to the stock fuel injection system to increase fuel is to turn the delivery valves counter clockwise, just not sure how. I see a lot of reference to this in the garden tractor pulling community but only reference not instructions. I’m kind of scared to try it because it will cause a lot of issues if not done properly.
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02-27-2023, 09:51 AM
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#6
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Name: 95cummins5.9
Title: Old man ***** gossiper
Status: Not Here
Join Date: Jun 2012
Location: U.S.A
Member`s Gallery
Posts: 4,720
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So you've already done injectors?
__________________
Quote:
Originally Posted by jfaulkner
puzzy, tune it.
I don't own anything stock, from engines to boobies I've modded them all. Life is too short to live with mediocre chit.
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02-27-2023, 10:36 AM
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#7
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Name: JWhite
Title: Trained monkey
Status: Not Here
Join Date: Aug 2009
Location: F Burg Ohio
Member`s Gallery
Posts: 1,817
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Loosen the hold down bolts and rotate it? If that's how everything is fastened to the pump body. I don't have experience with that particular engine, but most smaller stuff has the pump body casting integrated
__________________
GMC with a LiLLY
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02-27-2023, 11:42 AM
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#8
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Name: chw
Title: Green Behind the Ears
Status: Not Here
Join Date: Jul 2006
Member`s Gallery
Posts: 91
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Quote:
Originally Posted by 95cummins5.9
So you've already done injectors?
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No, no injector work yet. I wanted to attempt any mods I can do myself before sending off parts like injectors and pump parts like the plungers. I’ve seen someone on eBay selling bigger plungers. I would still have to disassemble the pump and I’m weary of that after watching YouTube videos of ppl doing it and not putting stuff back the way it goes resulting in different issues.
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02-27-2023, 11:45 AM
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#9
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Name: chw
Title: Green Behind the Ears
Status: Not Here
Join Date: Jul 2006
Member`s Gallery
Posts: 91
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Quote:
Originally Posted by JWhite
Loosen the hold down bolts and rotate it? If that's how everything is fastened to the pump body. I don't have experience with that particular engine, but most smaller stuff has the pump body casting integrated
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I think you’re right from what I’ve read.
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02-27-2023, 12:41 PM
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#10
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Name: Meyers Farms
Title: Too Much Time
Status: Not Here
Join Date: Dec 2007
Location: SW Ohio
Member`s Gallery
Posts: 2,508
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Just out of curiosity is this engine in a tractor? If not, what is it in? What is the goal with it?
__________________
2013 Ford F-450 6.7 Auto, 4x4, Crew Cab
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02-27-2023, 02:49 PM
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#11
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Name: chw
Title: Green Behind the Ears
Status: Not Here
Join Date: Jul 2006
Member`s Gallery
Posts: 91
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Quote:
Originally Posted by Meyers Farms
Just out of curiosity is this engine in a tractor? If not, what is it in? What is the goal with it?
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It’s in a zero turn mower, a Kubota zd331 with 72” deck, and the goal is fun. I’ve decided to put it to pasture and use it as a spare mower if needed so it’s of no consequence to me if it breaks. Lemme tell you, this thing walks the dog on my two Ferris mowers with the 40hp vanguards.
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02-27-2023, 03:48 PM
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#12
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Name: 95cummins5.9
Title: Old man ***** gossiper
Status: Not Here
Join Date: Jun 2012
Location: U.S.A
Member`s Gallery
Posts: 4,720
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Quote:
Originally Posted by chw
It’s in a zero turn mower, a Kubota zd331 with 72” deck, and the goal is fun. I’ve decided to put it to pasture and use it as a spare mower if needed so it’s of no consequence to me if it breaks. Lemme tell you, this thing walks the dog on my two Ferris mowers with the 40hp vanguards.
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__________________
Quote:
Originally Posted by jfaulkner
puzzy, tune it.
I don't own anything stock, from engines to boobies I've modded them all. Life is too short to live with mediocre chit.
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02-27-2023, 03:49 PM
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#13
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Name: JWhite
Title: Trained monkey
Status: Not Here
Join Date: Aug 2009
Location: F Burg Ohio
Member`s Gallery
Posts: 1,817
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I wonder if those other turbos you ran would work on the smaller .9L that comes in the Bx tractors? I thought about putting some altitude compensation on my bx2370
__________________
GMC with a LiLLY
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02-27-2023, 04:00 PM
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#14
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Name: chw
Title: Green Behind the Ears
Status: Not Here
Join Date: Jul 2006
Member`s Gallery
Posts: 91
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Quote:
Originally Posted by JWhite
I wonder if those other turbos you ran would work on the smaller .9L that comes in the Bx tractors? I thought about putting some altitude compensation on my bx2370
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I would say the gt12 would the vz21 will for sure it’s just a little small.
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02-27-2023, 06:07 PM
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#15
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Name: Meyers Farms
Title: Too Much Time
Status: Not Here
Join Date: Dec 2007
Location: SW Ohio
Member`s Gallery
Posts: 2,508
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Quote:
Originally Posted by chw
It’s in a zero turn mower, a Kubota zd331 with 72” deck, and the goal is fun. I’ve decided to put it to pasture and use it as a spare mower if needed so it’s of no consequence to me if it breaks. Lemme tell you, this thing walks the dog on my two Ferris mowers with the 40hp vanguards.
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Cool! This sounds like an interesting project.
__________________
2013 Ford F-450 6.7 Auto, 4x4, Crew Cab
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02-28-2023, 04:15 AM
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#16
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Name: mhuggler
Title: One piece at a time
Status: Not Here
Join Date: Sep 2007
Location: Uno, Pa.
Member`s Gallery
Posts: 1,523
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Life for an engine in a zero turn must be different. My B2650 has a D1305 in it and 99.9% of the time I’m having trouble keeping it happy with enough load. It’s a very undersquare engine that has insane torque for it’s size; the only time mine ever sees more than 1800rpm or so is when I need a specific pto speed like mowing grass.
__________________
2002 2500 4x4 ETH/DEE-F1 Mach 5's/62/65/12/Smarty/ATS Ex.manifold/AFE intake/TST Comp./.020 marine gasket/o-ringed/ARP studs/5"stacks/Airdog 150/Isspro guages/Southbend 3600 DD/3.54 gears/leveling kit/Bilstein 5100frt,5150rr/37" BFG A/T's on 18" Eagle 114's/Borgeson SS/DSS
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02-28-2023, 07:43 AM
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#17
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Name: chw
Title: Green Behind the Ears
Status: Not Here
Join Date: Jul 2006
Member`s Gallery
Posts: 91
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Quote:
Originally Posted by mhuggler
Life for an engine in a zero turn must be different. My B2650 has a D1305 in it and 99.9% of the time I’m having trouble keeping it happy with enough load. It’s a very undersquare engine that has insane torque for it’s size; the only time mine ever sees more than 1800rpm or so is when I need a specific pto speed like mowing grass.
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Yep, it’s a little monster for sure. From what I understand it’s a D1105 with longer stroke. They rev them to 3150rpm in the zero turns. It had power naturally aspirated I just felt like putting the turbo for the heck of it. I’ve for sure got this little motor at its limits being it’s at 31hp factory so with an added 10psi I’m asking a lot of it.
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02-28-2023, 07:45 AM
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#18
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Name: BigPapa
Title: Truckless
Status: Not Here
Join Date: Jan 2008
Location: Springfield, TN
Member`s Gallery
Posts: 5,041
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Better stock up on head gaskets.
__________________
Scott
2003 Avalanche Z71
Common sense is like deodorant. The people that need it most never use it.
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02-28-2023, 08:15 AM
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#19
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Name: chw
Title: Green Behind the Ears
Status: Not Here
Join Date: Jul 2006
Member`s Gallery
Posts: 91
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Quote:
Originally Posted by chw
Yep, it’s a little monster for sure. From what I understand it’s a D1105 with longer stroke. They rev them to 3150rpm in the zero turns. It had power naturally aspirated I just felt like putting the turbo for the heck of it. I’ve for sure got this little motor at its limits being it’s at 31hp factory so with an added 10psi I’m asking a lot of it.
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This little engine not little “motor” whoops 😬
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02-28-2023, 08:17 AM
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#20
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Name: chw
Title: Green Behind the Ears
Status: Not Here
Join Date: Jul 2006
Member`s Gallery
Posts: 91
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Quote:
Originally Posted by BigPapa
Better stock up on head gaskets.
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Yep, can’t expect things to last as long if you mess with them
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