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PTO clutch electrical question


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#16 dodge trucker ONLINE  

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Posted May 23, 2017 - 12:17 PM

I think that the fuel pump may be tired, for that part of the issue, it's a walbro vacuum pulse I found rebuild kits for around$10, I'll start there but that don't solve the "extra" wire question.

#17 dodge trucker ONLINE  

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Posted May 23, 2017 - 12:28 PM

Im using the same fuel pump that was originally on the tractor with the old engine as the replacement engine didn't come with a fuel pump, it was originally in a gravity fed application. I'm wondering if the fuel filter I am using might have something to do with it? It is a brand new prime line filter.

#18 daniel_b OFFLINE  

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Posted May 24, 2017 - 08:15 PM

there is a difference in the filters between a gravity fed unit and a pulse pump fed unit...


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#19 larrybl ONLINE  

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Posted May 24, 2017 - 08:50 PM

A Gravity fed doesn't use a fuel pump. Also the fuel pumps are not vacuum, rather pulse types. I use a test gas tank above the carb to make sure the engine is well, then connect the regular gas tank and pump.

To test the pump, Remove the spark plugs, Place the fuel line in a suitable container and crank the engine. You should see fuel pumping. (be cautious of any sparks).

The pulse pump can be fire wall mounted, or integral to the carb. Either will work.

Filters are the same for either.


Edited by larrybl, May 24, 2017 - 08:51 PM.


#20 dodge trucker ONLINE  

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Posted May 25, 2017 - 01:02 PM

A Gravity fed doesn't use a fuel pump. Also the fuel pumps are not vacuum, rather pulse types. I use a test gas tank above the carb to make sure the engine is well, then connect the regular gas tank and pump.
To test the pump, Remove the spark plugs, Place the fuel line in a suitable container and crank the engine. You should see fuel pumping. (be cautious of any sparks).
The pulse pump can be fire wall mounted, or integral to the carb. Either will work.
Filters are the same for either.

I know that gravity fed systems don't use a pump/ the replacement engine was ORIGINALLY out of a gravity fed application but with this machine having the tank mounted under the seat there's no way that it would work now as a gravity fed setup. So I took the pump off of the blown up engine and put it onto the replacement engine.

#21 larrybl ONLINE  

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Posted May 25, 2017 - 02:14 PM

Did the donor engine have a connection for the pulse line?



#22 dodge trucker ONLINE  

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Posted May 25, 2017 - 02:39 PM

No, I have a thread elsewhere about that. It does now
The weird part was that after sitting a few years dry, I put a new fitting in the replacement engine the same as where it was in the old engine and put about 1/2 gallon of gas in the tank and it started right up immediately the 1st time I hit the key and ran good. I ran it about 10 mins and shut it off, next day I decided to try it out to mow my lawn and it ran fine for about 15 minutes before it started it's crap --- dying out.

#23 Cvans ONLINE  

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Posted May 25, 2017 - 02:56 PM

Are you sure your fuel tank is vented properly?  If the fuel pump wasn't functioning properly the engine wouldn't run for five minutes at full throttle. It might run a long time at idle though as the pulses to the pump are are farther apart giving a stiff diaphragm time to flex.  


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#24 dodge trucker ONLINE  

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Posted May 25, 2017 - 04:50 PM

Yup I removed the cap when it was starting to die out and no difference, I took a very small drill bit and made sure.
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#25 dodge trucker ONLINE  

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Posted May 25, 2017 - 07:37 PM

Most worried about that mystery wire that seems to have no place, got a couple of things to try on the die out issue. I have a kit coming for the fuel pump via ePay, Andi am going to look at my prime line catalog and see if it says anything about the particular gas filter that I bought for it as to whether it is more suited to a gravity fed application or a pump application. One thing about the filter is that the arrows point on it, they seem backwards compared to others I have used in the past, I did install it according to those arrows.

#26 Cvans ONLINE  

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Posted May 25, 2017 - 07:59 PM

I use the plastic inline filters on everything and have had no problems. I do try to stay away from the ones with a paper element.  Why don't you pull the hose from the outlet of the filter and see if you have good fuel flow. If not, bingo. Another thing you have to watch is what type of fuel line you use for the pulse hose coming from the block to the pump. If it is too soft or partially kinked your pump will not function properly. 


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#27 daniel_b OFFLINE  

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Posted May 25, 2017 - 08:38 PM

 
post 19,
...Filters are the same for either...
 
ok...
BUT, this was the first manual I looked at:
page 8 of B-&-S 18.0 hp, L-head twin, models 400400, 402400, 404400, & 422400, publication form 272111-10/92
2017.05.25_GTtalk_B-&-S_manual-a.gif
2017.05.25_GTtalk_B-&-S_manual-b.gif
 
Fuel Filter (with fuel pump)   394358
Part Number: 394358S
75 micron fueel filter
 
Fuel Filter (without fuel pump)
Part Number: 298090S
150 micron fuel filter

Edited by daniel_b, May 25, 2017 - 08:46 PM.

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#28 larrybl ONLINE  

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Posted May 25, 2017 - 08:47 PM

I stand corrected, and had to look at the filter and fuel line I purchased for Hulk II's overhaul. Apparently there is a difference and it is noted on the package. I got this from Auto Zone.

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#29 dodge trucker ONLINE  

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Posted May 26, 2017 - 07:20 AM

the filter I used said nothing about microns or  for use either --with--or--without fuel pump... I do have a couple of Fram G1's here collecting dust, I wonder what the microns capacity is on those....



#30 Cvans ONLINE  

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Posted May 26, 2017 - 09:03 AM

Thanks for the information on the filters. Still learning new things.  :D


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