Problems with perkins

admin

I have a 3.152 perkins having problems with air in fuel. I have tried everything I can think of. I have tried an electric pumpand alot of filters and still no luck. I can bleed the air out and it will run  for about 20 seconds and then it runs out of fuel in the primary pump then I'm back to square 1 anybody have any ideas what to check. when it dies i can get fuel out of top bleeder but the bottom is dry. Hopefully someone can help I need to get my welder to makin money instead of costing ThanksChad Ware
Reply:Make sure the pickup in the tank isn't plugged, and no blockages in the line. A mostly-plugged is the worst, as enough fuel will find its way through to bleed and restart, but will starve at running flow (yes, I was there a few weeks ago. Took several of us entirely too much time to find the problem)
Reply:In a diesel situation... I would refill the fuel even when half empty... cant risk it... isnt like high octane(gasoline) fuel where you can have dry and start it again when u refill the tank...diesel is low octane fuel with bacteri content... the chamber is a higher pressure to burn those fuel... maintaince is a pain in diesel then gasoline counterpart.In a high octane (gasoline) situation... always check the fuel filter... blockage and stuff and you be ok...Last edited by Mandau; 03-02-2008 at 10:09 PM.Unit in my fab shop dept:my good hand and team that trust me...A lone welder make art... a village full of welder make Miracles...
Reply:Check the fuel cap. Vapor lock can cause the same symptoms you describe.Miller Thunderbolt 225Millermatic 130 XPLincoln HD 100 Forney C-5bt Arc welderPlasma Cutter Gianteach Cut40ACent Machinery Bandsaw Cent Machinery 16Speed Drill PressChicago Electric 130amp tig/90 ArcHobart 190 Mig spoolgun ready
Reply:Try hooking a hose in a can of diesel to your electric lift pump and see if it runs.  If it does, the problem is before the lift pump.  You have replaced the filters ?This will omit anything behind that.David Real world weldin.  When I grow up I want to be a tig weldor.
Reply:David R suggests a very good way to eliminate the supply side.I agree with previous posts, it's most likely a supply side restriction.You could also disconnect the supply line at the lift pump. With a gravity flow system, check for ample fuel flowing from the disconnected supply line. With a suction lift system, check for flow while pressurizing the fuel tank; by blowing just a little air into the tank filler opening. The culprit also could be an air leak on the suction side of fuel supply. Possible air leak points include the sediment bowl gasket, or the fuel shutoff valve stem.If this system has the filter housing with four lines, there is no fuel return to the tank. The Perkins systems without return to the tank, are difficult to bleed,  by just pressurizing the "in" line. It's better to disconnect the injection pump "in" line, ( filter  "out"  line) and maybe even use a hand-pump to pull a vacuum on the "out" line of the filter housing. If the hand-pump bleeding keeps pulling in air;  search for an air leak. Likely cause is at the filter housing. Maybe a cracked line or ferrule, or missing seal washer under the filter bolt head. Other potential air leaks are the small lines from the filter housing, which lead to the cold-start heater and the injection nozzle bleeds.Good LuckLet us know!
Reply:Originally Posted by David RTry hooking a hose in a can of diesel to your electric lift pump and see if it runs.  If it does, the problem is before the lift pump.  You have replaced the filters ?This will omit anything behind that.David
Reply:I am geting plenty of fuel thru the pump. I unhooked the main supply to the primary today to check the screen and it was clean and turned on the pump and got nothing out of the filter housing but it started backing up thru the primary and i am getting a steady flow thru the return so i think im getting plenty of fuel. thanks for all the advise maybe i can get this running before i go baldChad Ware
Reply:Originally Posted by enlpckMake sure the pickup in the tank isn't plugged, and no blockages in the line. A mostly-plugged is the worst, as enough fuel will find its way through to bleed and restart, but will starve at running flow (yes, I was there a few weeks ago. Took several of us entirely too much time to find the problem)
Reply:Originally Posted by cware78where was you plugged at  thanks
Reply:Seems like my son had trouble with his about the time he changed the fuel filter the first time, I think he ended up taking it to a Lincoln repair shop and found out that the fuel filter  he bought for it had two filter gaskets with it, one gasket would restrict the fuel flow to where it wouldn't run. I don't recall where he bought the fuel filter from but think it was from an auto parts store.  Don't know but it might be something to check on.
Reply:Don't know about on a welder but on MF tractors a lot of the fuel lines on that engine are metal, they can crack and suck air, sometimes without leaking any fuel out.HH 187Miller Bluestar1EAHP AlphaTig 200X
Reply:Originally Posted by GreyhorseDon't know about on a welder but on MF tractors a lot of the fuel lines on that engine are metal, they can crack and suck air, sometimes without leaking any fuel out.
Reply:Either:  Just a little whiff like coke.  NOT a big drag like pot. It can break the pistons!David Real world weldin.  When I grow up I want to be a tig weldor.
Reply:these are a bear to start we have to bleed the fuel at the injectors on our bombadier and it still takes a lot of cranking soon it will start on one or two cyl. and then you keep bleeding till they all fire. by all means do everything that has been said before , these are a real pain. we wont service the system unless there is a problem with them.Life is tuff,so be sharp  lincoln sp 100  cutmaster101  miller bobcat  miller 250 mig  $thousands in snapon
Reply:I got it running today filter housing was pluged and not letting enough fuel to the primary thanks for all the helpChad Ware
Reply:on my d3-152 (sa-250 ) when i ran out of fuel, i just loosened 1 line at the injection pump, hit the starter,then as soon as it started spitting fuel out, tighten the nut and  presto- it's running. I have always used "power Service" brand diesel fuel treatment in my fuel and never had any fuel problems . And ,when it's too cold , instead of using starting fluid (ether) try a thimble full of gasoline . it works good in diesels , and, is said to be easier on them  than ether.[SIZE="5"Yardbird"