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Look for a check valve... that would probably be the only reason you could not back-feed. It would have an arrow on the body indicating direction. Or if you can locate a hydraulic diagram, send it and I'll tell you for sure. Seals and hose don't care about direction and I think their control...

I had a similar experience a long time ago on a 305 Honda. A person pulled out in front of me from a Wendys and I had to take a route through their front yard area and nearly went into the greenhouse seating. Karma must have been good that day as no damage was done. I love bikes but know the...

Jeff, if the hose is marked 1 1/4" then the inside diameter is that size. That is capable of a LOT of flow and it will really help if munchies gets the pump number to verify it. What we CAN vary is the speed (flow) but we have to always make enough pressure. The design of any APU must make...

Munchies, If you don't plan on full pressure, it will stall the engine any time you have a load. What you can vary is the volume (flow). Here is an example using the 003 engine. Jeff, okay, say you use the 003 engine and have 16 hp @ 1800. Reversing the formula 16 = (Q x P)/ 1714...or...

Jeff, the 1350# makes sense but 2" is probably the suction, not pressure side. I went back through several KW to HP conversions and still get 13.4 HP for 10kw. Since they would rate the gen on output, the numbers by Munchies of 16 and 18 look correct for engine HP. Keeping with the earlier...

The generator has 6.7 hp per 5 kw (converting KW to HP) so a 10 kw would have about 13.4. That sounds a bit small if the 50 hp is correct. Sorry Jeff...I didn't mean to get so testy... but having my GL post closed with no discussion was like saying I cannot talk about an issue very close to...

Thanks Matt. It would be a real pain to go to the trouble of putting something together and watch it move like a snail. Yea, the fork truck engine sounds good too. Most are 4 cyl in that size. Whatever you do, you might want to consider a foot throttle, rather than constant speed governor...

Ok Jeff, thanks for putting the size up. It's something to work from until size and pressure is verified. I'll use 1" ID for now. If the ID is about 1", from the table I referenced above, that corresponds to around 60 gpm of flow (at 25 fps). It's capable of a LOT more flow than my crane...

Munchies, Look at the pump specs for the pump you reference. It states just under 4 gpm @1800 rpm. Even if you were to turn it at 3500 (screaming for a pump), it would be under 8 gpm and forget it in winter, cold fluid will cavitate. I spent some time in the TM's but cannot find any...

Actually CMDavis, I have a hydraulic crane myself with 51' stick that would have only slightly less volume or pressure (it doesn't have as large of winch). It has a 1/2" ID main pressure hose that I know well, having to put seals in virtually every component, including an 8 passage swivel. I...

The only problem with the trailblazer is you will be turning the pump when welding unless you disconnect it. Personally I would not want to do that when a dedicated engine and pump could be rather compact and from my experience, I have to have a welder and crane operating at the same time...

I was thinking more like an engine from a 10 or 15 kw gen set that is beyond making work again for generating. Or an Onan 16 twin if gas, maybe a single cylinder large Kohler even...but it might be slow (or stall) if you don't have enough hp at the pump (or pump size is wrong).

It's way overkill, I think. Can you confirm the pressure line size and operating pressure? That will give us a lot better idea of the HP. That's a nice looking engine but I have powered an entire hydraulic drive sawmill with a 4B Cummins and had 70 gpm. I'm guessing it's 8-10x larger hp...

VI you will need to confirm hose sizes and pressures but here is a guess. To have laminar flow the fluid should move; Pressure lines - 25 ft./sec. Return lines - 10 ft./sec. Suction lines - 4 ft./sec. I will guess at a main pressure line with inside diameter (ID) of around 1/2" so looking...

Yes the first post says you want to have a temporary fix to use it to change out your own motor. But it appeared the thread progressed to a system that would be permanent and have capacity comparable with the OEM (except for the posts about posting pictures). If all you want to do is change...

The pump will produce whatever pressure the bypass is set at. It's a gear pump, not pressure compensated variable displacement. So if the pressure relief is set at 1500 psi, no matter what driver is used, it will not relieve until that setting is reached...or it will stall the engine or...

Have you guys missed the engine powered hydraulic pump, self contained units that have sold on GL? They are 28 hp diesel and perfect for this use. Two circuits even... that can be combined for higher flow. I want one for my project but they are just beyond my budget. Or buy a log...