2020 toolcat code E001076-16

[ruffdog]

It looks like valve #7275950 is now #7302578 (from bobcat web site).

 

[ruffdog]

Another thing I found while looking at the fuel lines, I found a crimped rubber hose. The hose that comes from the filter gets routed down toward the base of the dipstick, under a brown electrical plug, then back up. It was too tight of a bent and crimped the hose. Not enough to disrupt the running but I did reroute it better. Just something to look for....

 

[laurencen]

wish they added a inch or so to all hoses, yes there are many hoses that are just the right length, any shorter they would not work, I picked up a length of hose and when put back together added a extra inch for next time.

ran machine for 15 mins full speed outside checked for leaks, seems good but it is in a heated shop, also added the antigel fluid so should be good, real test will be blowing snow as we expect another dump today

 

[SSdoxie]

winter package on the 2020 is a block heater and larger battery, the hose you see is from the fuel tank, below is a 90 to the primer, left is the return from the injector pump, it is pressure operated to open dumping to the tank or thro the bulb to the filter

replaced it with a regular T will see how it works tonight, part is one week away

The cold fuel by-pass valve is temperature activated, not pressure. At cold fuel the by-pass valve changes the return flow so rather than pass through the fuel cooling rail the goes directly to the bulb and fuel filter to help remove wax in filter. This system works when fuel is somewhere between starting to wax point and gel point, filter partially blocked. Then engine is able to run but at reduced RPM until warmed up.

A regular Tee in the there will probably work fine in cold weather months but in heat of summer you may experience performance issues and/or fuel heat codes due to not passing through the cooler.

 

[ruffdog]

Dennis, do you have access to the instructions for the bypass kit? I am questioning the hose routing and valve installation on my 2017 5610. Kit #7276266 thanks

My service manual section "fuel system" does not show the fuel bypass in the diagram. I'm just wondering if it was spliced in correctly.

 

[laurencen]

ruffdog, if you go to bobcat website and look up your machine in the parts section there is diagrams of the fuel components, it gives the way parts are assembled and may help you

SSdoxie, makes perfect sense temperature operated, the tee worked great this morning for a quick fix until the part arrives

 

[ruffdog]

ruffdog, if you go to bobcat website and look up your machine in the parts section there is diagrams of the fuel components, it gives the way parts are assembled and may help you

SSdoxie, makes perfect sense temperature operated, the tee worked great this morning for a quick fix until the part arrives

Ha! I didn't think of that....perfect, thank you! I was looking at the bypass kit under optional equipment. duh It also helps to better follow the correct rubber hose through the zip-tied bunch....oops. Laurence....keep us updated on your fix....let it snow, let it snow, let it snow. Thanks to SSdoxie too!:drink:

 

[laurencen]

temporary fix worked, blew snow for a couple hours half tank of fuel and no issues, may leave it this till spring to replace with the right part. now to get the snowmobile out of the container, not enough snow to use it last year but there is lots now and hopefully more thro winter

have fun and be safe out there

 

[laurencen]

for the heck of it I left the valve outside last night, this morning its -26C and the valve is still closed, anyone know at what temperature this valve should open? dealer just says when its cold

 

[ruffdog]

So, your -26c equals a -15F (for us down here) so it is plenty cold for fuel gelling. Brrr Are you testing the old valve or new one? A call to Bobcat may be needed. It would be nice to know EXACTLY how this bypass is suppose to work. Especially if you live WAY up there! :cold: