Log Splitter - Woodworking Talk - Woodworkers Forum
 
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post #1 of 7 Old 02-01-2014, 11:09 PM Thread Starter
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Log Splitter

Has anyone every have the need to replace the gas engine on their log splitter? I won't go into the details of why I need to replace it, but the model I got is no longer available. It's just a 5.5 HP B& S Quantum engine with a 7/8" dia x 1-13/16 L shaft and a mechanical governor. I contacted B&S Customer Service and they referred me to their 'Expert'. His suggestion was a 6.75 HP engine that’s twice the cost of other 5.5 HP engines I've seen online. He also said I would have to swap out the crank shaft from the old one. Didn't make much sense to be.

Is there any difference in motors for splitters and say a lawnmower using the same HP/shaft? I guess besides HP, the only other important factor is the no-load max rpms. So you don't burn up the Hydralic pump.
Any thoughts?

Last edited by djg; 02-02-2014 at 02:05 PM.
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post #2 of 7 Old 02-02-2014, 05:06 AM
where's my table saw?
 
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10 years ago

I converted a tractor mounted 3 point hitch splitter to a 2 wheel trailer type with it's own pump and gas engine. I used an 8 HP engine from here.


as noted in the text for log splitter applications:
http://www.northerntool.com/shop/too...4218_200514218


I don't anything about HF engines, but they may just be fine:
http://www.harborfreight.com/engines...ine-60363.html

The answer to your question will only be as detailed and specific as the question is detailed and specific. Good questions also include a sketch or a photo that illustrates your issue. (:< D)

Last edited by woodnthings; 02-02-2014 at 05:11 AM.
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post #3 of 7 Old 02-02-2014, 06:18 AM
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post #4 of 7 Old 02-02-2014, 07:47 AM Thread Starter
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Quote:
Originally Posted by cabinetman View Post
No need for an engine, and you get a bit of exercise..
Been there...done that. Time to work smart.
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post #5 of 7 Old 02-02-2014, 07:50 AM Thread Starter
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The motor cited is a bit more HP than I have (5.5). Can you overpower the hydrolic pump and cylinder of a splitter? Or is it only the max No-load rpms that's important. I would like to match mine as best I can. The shaft is too long also, but I could add riser blocks.
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post #6 of 7 Old 02-02-2014, 08:37 AM
where's my table saw?
 
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There are plans online

There are a bunch of You Tube videos also:

http://www.ehow.com/how_7726222_buil...-splitter.html

I don't think you can "overpower" the pump, iy should have an "open center" valve so the pressure won't build up. It's been a long time so I may be off on that, but the valve is designed for log splitters specifically for that reason. Your engine to pump connection will be a Lovejoy coupler so the alignment is not criitical:

http://www.lovejoy-inc.com/products/...couplings.aspx

You just need to get the proper mating size for both the pump and the engine if they are different.

The answer to your question will only be as detailed and specific as the question is detailed and specific. Good questions also include a sketch or a photo that illustrates your issue. (:< D)
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post #7 of 7 Old 02-02-2014, 10:13 AM
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I recently replaced an old vintage 5 HP B&S engine on my home built wood spliter with a 13 HP electric start "Chinese" engine from Princess Auto, (like Harbor Freight). My splitter is a little different in that the pump is chain driven and not direct drive like most, so that made it relatively easy. I just had to make sure the new engine would fit the space and had the right size of shaft to fit the gear drive. I don't know about over powering the pump but I can say that not much stops this puppy now with the bigger engine, plus electric start is real nice. That said, my old direction valve started to leak once I had the larger engine so I replaced it which I like the new on much better. Just to be safe I replaced the hoses as well.


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