One of the best things I ever did. I might brand my 690 into a Cadillac. Customer’s love it.
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Thanks for all the feedback on oils, everyone. What I settled on yesterday was Mobil1 Full Synthetic 10w-30, because of my familiarity with it. But I found I had half a jug of 5w-30 leftover from the last oil change on my snowblower and generator. So I might just use that up first.
I was not aware that Mobil1 burns off faster than other synths. I always thought it was just a quirk of synth. lubes in general.
I found an overpriced marine-grade 90w gear lube for the gearbox. It’s all that Advance had in straight 90w. I wasn’t sure what the next closest viscosity would have been.
I have a quart of shell and a quart of some unknown brand of 30w non-detergent that I was saving for the pump in my older machine. This’ll probably get used in the new pump temporarily until I can source something that appears more specialized. Could not find anything I was really happy with, locally.
I figure with an average of $10,000+ in revenue between motor oil changes, and $60,000+ between yearly pump oil changes, I can afford to baby my equipment, if only to make me feel warm and fuzzy.
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Hit my first Snafu yesterday on the build:
My local Honda dealer was given faulty info by her regional engine distributor (Eastern Equipment). They told her that the iGX700 came with a 1” shaft. I failed to verify if that was correct before ordering my pump.
Just out of curiosity or a hunch, I pulled out my calipers yesterday when I got the motor home, and the shaft is indeed 1.125” in diameter.
SprayerDepot was awesome to work with on the issue. They found me a 1 1/8” shaft pump in their warehouse, and had it shipped out by the end of the day, even though I was calling well after 3pm.
It does look like I’ll be on the hook for return shipping, which I intend on invoicing Eastern Equipment for (mostly out of principle). I felt bad for my local dealer at Robust Valley. She sounded like someone who is very particular about details, and regretted trusting the info from the employee at the distribution center who obviously wasn’t as careful with info.
Anyone use this stuff? Looks like a pretty good deal.
1’-1/8 pump or gearbox?
Gearbox. My mistake. But they sell it together with the pump as one unit. I wish they would’ve let me swap just the gearbox and save on return shipping, but it would’ve made issuing the return very tricky.
What I use, mainly because they always have in stock at Northern Tool and I’m in their often enough.
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What I use, seems fine the past couple of years.
Thanks guys. Got a couple cases of it. 
Stoked to finally get started building this machine tomorrow. I think I’ve got just about everything I need put together.
I have a very unique approach to the skid. It’ll be interesting. It’s aluminum, but it just might earn @Innocentbystander’s approval, anyway.
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@Dago52, @marinegrunt, @SchertzServicesLLC, or anyone else who’s built a geardrive:
What mounting bolts do I need (thread size)? There aren’t any with the pump.
I could always load the motor on the back of the truck and bring it to the hardware store for some trial and error, but figured I’d ask here first.
I don’t even know if they’ll be metric or standard. It’s a Japanese motor, but the crankshaft is in inches, so… 
Whatever you end up buying, buy a dozen. do that each time you run to the store and pretty soon you want have to run to the store
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Call envirospec as they ship bolts with pumps and they worked with my Honda motor.
5/16-24UNF x 1" Length, Grade 8.8
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Thanks so much!
I just picked up the replacement pump. This one had bolts with it. Looks like they gave me the 3/8” bolts for the further out mounting points.
Is it just me, or does it seem like an awful lot of weight to be putting on 4 bolts in an aluminum block? Maybe that’s why @Dago52 went through the trouble of building additional support for his pump.
So I picked up four 5/16”-24 bolts and washers, for redundancy.
Progress on the “skid”. (Don’t worry, no oil in the motor yet).
12”x12” x 3/8” plate. This will be getting around 8 or 10 vibration isolation mounts all around.
https://www.amazon.com/gp/aw/d/B089GQWK1Q?ref=ppx_pt2_mob_b_prod_image
Next question: how do I know if I need spacers/washers between the pump and motor?
Yeah, so this pump does not take an m14-1.25 threaded plug.
The 1 1/8” gearbox appears to be a 1/2” straight pipe thread (bspp?)
And the pump appears to use a 3/8” straight pipe thread. It threads right into the inlet on my new K1 unloader. So I’m thinking BSPP
(If I had a 14mm tap, I’d be drilling and tapping out these plugs right about now…)
Edit: the Fumoto f110n is the correct valve for the pump. It has a 3/8” npt thread. Amazon’s description was wrong 
The bolts just basically keep the pump from sliding out. The crankshaft is what’s supporting most of, if not all, the weight.
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That makes a lot of sense. I was honestly worried about that too when I built mine, like holy cow it’s 4 teeny bolts holding up a 40-lb hunk of metal
A grade bolt has a a snap rating of like 150k. Grade 5 is 120k those four bolts will hold 100 pumps up at the same time
