fuel line - filter to water drain-T [Archive] - Diesel Place : Chevrolet and GMC Diesel Truck Forums

: fuel line - filter to water drain-T


steve-r
11-16-2004, 09:39 PM
after having learned from some here that a good habit is to monthly
open the drain valve, and check for water, let any air out, and check
that the OPS is powering the LP properly, I noticed that the rubber
fuel line is rotten just below the drain-valve. i guess rubber
will rot after 10 years. since that drainvalve is right beside the
thermostat housing( on my 94 ), maybe the heat has helped. its not
leaking, but likely will soon.



anybody know what inside diameter fuel hose i need? 5/16" or 1/4" ?

i assume it can be installed without having to remove the intake
manifold. maybe just loosen the stanadyne filter bracket, remove
old, feed new under the manifold from front, connect to filter drain
fitting,cut to length at drain end, then re-connect back to the drain
valve, bleed, and have a beer.



or would this be the time to move the drain...its already popped out of that cheap pressed slot mounting bracket . to where?

quantum mechanic
11-16-2004, 09:59 PM
It's 1/4 fuel line. Buy 5' or 6' and replace them all. Do it now or one at a time when they go, usually when you're least prepaired to deal with it. There's enough room there to shoot it through. You don't have to loosen any but hte filterhousing off the manifold.

w_huisman
11-17-2004, 08:52 AM
You know, I was looking those hoses the other day (when I had my intake off). I replaced the drainline hose last winter because I cracked the old one when I replaced the coolant crossover. I didn't replace the hose that goes to the IP.


My question is, wouldn't routing that hose to the IP a little differently get rid of that really sharp turn it has to make right before the connection to the IP?


At first I thought of bringing it straight up from the filter housing and around or over the intake, but that's a pretty sharp bend too.


My next best guess is to run it under the intake, so it gets a straight run out of the filter housing. Then sneak the hose out from under the intake along side of the front driver's side pair of fuel lines, and then back to the top of the IP. I just haven't checked if there's enough room there yet.


What do you guys think? Maybe running just straight from the filter to the IP, like normal, is the best way.


I might just have to replace that hose before my trip this weekend.


(PS: QM... do you mean 1/4" I.D. hose is the correct size? Thanks!)Edited by: w_huisman

quantum mechanic
11-17-2004, 09:35 AM
Yes, 1/4" id. I thought about that loop of fuel line required to make the IP fuel inlet also. It could use a reroute but where to put it. I'd probably try and move the fuel filter housing and lines away from the engine's top to the firewall or some other location that's a touch cooler.

w_huisman
11-17-2004, 09:50 AM
...I'd probably try and move the fuel filter housing and lines away from the engine's top to the firewall or some other location that's a touch cooler.


I don't want to get that creative. I'll check it out, hopefully tonight, and see if I can sneak that hose out between the legs of the spider (lower intake) on the driver's side.


One other question, then I'll quit hi-jacking this thread...


I've heard mention of some sort of screen in the fuel inlet to the IP. Where is this little turkey and how do I get at it? Seems like cleaning this at the same time I'm replacing the fuel line to the IP is a good idea.