Fuel return line?

[daman]

Engine Ford 1975 201 3 cyl diesel..

CAV injector pump..

single(1) fuel filter element..


question.....

the fuel return line coming out the side of the injector pump does that go to the "IN" on the filter housing or "out"? i think it goes to the in. Im wondering now because working on my buds 1985 545 his is going to the "IN" but mine is plumed to the "out" witch i believe it wrong because fuel needs to flow in and through then out the pump to aid with cooling.

i'm not talking the return for the injectors i'm talking the line off the side of the pump body.

 

[daman]

Anybody??

can some one look at there tractor

 

[Ultradog MN]

I just went out and snapped a pic of the lines on my 201.
Hard to tell from the pic but the line on the back end of the pump goes to the Left Rear port on the filter. The line from the fuel tank goes to the Right Rear port and the one from the side of the pump goes to the Left Front of the filter. The right Front port is plugged.
HTH, Jerry

 

[daman]

Thank you for the pic that's EXACTLY how mine looks plumed and i think it's wrong,fuel needs to circulate through the pump body for cooling from what I'm reading.

your blue line(that is the return) off the side needs to go to the "in" arrow on your filter housing.

thoughts??

 

[JMOR]

(quoted from post at 19:02:25 05/04/11) Thank you for the pic that's EXACTLY how mine looks plumed and i think it's wrong,fuel needs to circulate through the pump body for cooling from what I'm reading.

your blue line(that is the return) off the side needs to go to the "in" arrow on your filter housing.

thoughts??

ight it not be a question of "do I want to filter the fuel again as it re-circulates or do I just want to re-circulate it?"

 

[daman]

(quoted from post at 00:07:52 05/05/11)

(quoted from post at 19:02:25 05/04/11) Thank you for the pic that's EXACTLY how mine looks plumed and i think it's wrong,fuel needs to circulate through the pump body for cooling from what I'm reading.

your blue line(that is the return) off the side needs to go to the "in" arrow on your filter housing.

thoughts??

ight it not be a question of "do I want to filter the fuel again as it re-circulates or do I just want to re-circulate it?"

Ya it's not a filtration issue it's a flow direction issue,fuel needs to flow in the proper direction.

 

[JMOR]

(quoted from post at 19:14:34 05/04/11)

(quoted from post at 00:07:52 05/05/11)

(quoted from post at 19:02:25 05/04/11) Thank you for the pic that's EXACTLY how mine looks plumed and i think it's wrong,fuel needs to circulate through the pump body for cooling from what I'm reading.

your blue line(that is the return) off the side needs to go to the "in" arrow on your filter housing.

thoughts??

ight it not be a question of "do I want to filter the fuel again as it re-circulates or do I just want to re-circulate it?"

Ya it's not a filtration issue it's a flow direction issue,fuel needs to flow in the proper direction.

irection? The arrows should be thought of as into filter (unfiltered fuel) and out of filter (filtered fuel) or in other words which side of the filter element is this port on?

 

[daman]

Thats what i don't know is it just a filtering issue hence the arrows or flow reasoning.

i do know in my friends 545 manual it shows how the line is routed in the illustration and it shows return to go in the "in" port.

maybe it doesn't matter?

 

[JMOR]

(quoted from post at 19:50:52 05/04/11) Thats what i don't know is it just a filtering issue hence the arrows or flow reasoning.

i do know in my friends 545 manual it shows how the line is routed in the illustration and it shows return to go in the "in" port.

maybe it doesn't matter?

t this point, I can't honestly help you, hopefully someone else can offer you fact vs opinion.

 

[daman]

Thanks jmor thats ok.

 

[v240tic]

(quoted from post at 16:02:25 05/04/11) Thank you for the pic that's EXACTLY how mine looks plumed and i think it's wrong,fuel needs to circulate through the pump body for cooling from what I'm reading.

your blue line(that is the return) off the side needs to go to the "in" arrow on your filter housing.

thoughts??

My '83 4110 is plumbed the same way. From what I can tell, there should be no problem with this, as the fuel from the outlet of the pump flows back to the inlet, bypassing the filter (it has already been filtered once).

 

[daman]

(quoted from post at 16:41:49 05/05/11)

(quoted from post at 16:02:25 05/04/11) Thank you for the pic that's EXACTLY how mine looks plumed and i think it's wrong,fuel needs to circulate through the pump body for cooling from what I'm reading.

your blue line(that is the return) off the side needs to go to the "in" arrow on your filter housing.

thoughts??

My '83 4110 is plumbed the same way. From what I can tell, there should be no problem with this, as the fuel from the outlet of the pump flows back to the inlet, bypassing the filter (it has already been filtered once).

So by inlet you mean the "out" arrow?

 

[JMOR]

v240tic can come back and speak for himself, but in the meantime, try this:
My '83 4110 is plumbed the same way. From what I can tell, there should be no problem with this, as the fuel from the outlet of the pump flows back to the inlet [u:c26b505fe7][i:c26b505fe7]of the pump[/i:c26b505fe7][/u:c26b505fe7], bypassing the filter (it has already been filtered once).

 

[v240tic]

(quoted from post at 16:45:31 05/05/11)

(quoted from post at 16:41:49 05/05/11)

(quoted from post at 16:02:25 05/04/11) Thank you for the pic that's EXACTLY how mine looks plumed and i think it's wrong,fuel needs to circulate through the pump body for cooling from what I'm reading.

your blue line(that is the return) off the side needs to go to the "in" arrow on your filter housing.

thoughts??

My '83 4110 is plumbed the same way. From what I can tell, there should be no problem with this, as the fuel from the outlet of the pump flows back to the inlet, bypassing the filter (it has already been filtered once).

So by inlet you mean the "out" arrow?

The fuel flows from the outlet on the pump to the out arrow port of the filter, passes through to the other out arrow port of the filter (they are internally connected with no restrictions) and back to the inlet of the pump. Same as yours and Ultradogs. When tree out of three posting in this thread has the same plumbing, I would say it is correct.