Lack of power climbing a hill

1941 - 1945, MB, GPW Technical questions and discussions, regarding anything related to the WWII jeep.
csmarcher
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Re: Lack of power climbing a hill

Post by csmarcher » Sun Apr 22, 2018 11:00 pm

Throttle linkage appears to be okay, the hill in question is one my 44 GPW cruises up with no problems at all, in fact that's what alerted me to the potential trouble.
In checking the fuel system, the petrol tank was well sh*tted up with rust and crap, so that's gone in for a boil out and cleaning, ordered a new cartridge for the petrol filter as the old one was also pretty full of crud. Inspected the fuel pump, also pretty fouled with muck so that's coming off for a cleaning as well.

Thank you each and everyone who took a moment to reply, your help is much appreciated.
I'll update you as things progress along.

Gary Archer

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Tony W
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Re: Lack of power climbing a hill

Post by Tony W » Mon Apr 23, 2018 12:04 am

Jeez Luc
You are a great example of a leopard never changing its spots......... You have NOTHING to add, only post to denigrate others.
Once a POS,,, always a POS.
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Re: Lack of power climbing a hill

Post by artificer » Mon Apr 23, 2018 11:53 am

There is only way to win with this regular toxic contributor, & that is not to play.

Why is one person in particular continually needing to criticise anyone, other than a couple of cohorts, offering a positive contribution/solution/opinion to questions raised by OP's & others?
Surely this is of no value to those members on the G wishing to learn & it is continuing to allow his obvious narcissism to live on unabated.
John GIBBINS Member Institute of Automotive Mechanical Engineers [Ret], ASE Master Medium/Heavy Truck & Auto Technician USA -2002 Licensed Motor Mech NSW MVIC 49593 Current 2015
TO DIAGNOSE, TROUBLESHOOT OR FAULT FIND ANY AUTO SYSTEM....
Understand how system parts interact with one another. GOOD parts can then be established & the NOT GOOD problem/s part/s isolated for repair or replacement.

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Re: Lack of power climbing a hill

Post by 17thAirborne » Mon Apr 23, 2018 12:07 pm

You two may have some good things to contribute, but you HAVE fekkin ruined this thread, along with many others. You act like fekking eedjits sometimes and I'm probably not the only one who is sick of it.

JUST KNOCK IT OFF

I don't care who said what to whom first just grow up and quit this shyte once and for all. :evil:

AGAIN, you can both make some great comments, but you both ALWAYS LOSE when this stuff starts.

VERY SAD :oops:
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Oz

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Re: Lack of power climbing a hill

Post by twinflyer17 » Mon Apr 23, 2018 2:33 pm

Check the manifold gasket and torque, too. My gasket was shot and slightly leaked last year and when I replaced it, and properly torqued the bolts, I felt a noticeable difference in engine power.
Sean

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Re: Lack of power climbing a hill

Post by artificer » Tue Apr 24, 2018 12:01 am

Did the OP ever hook up a vacuum gauge as was recommended in the first response on this thread?
What did the reading indicate....picture & explanation may help identify the issue.
John GIBBINS Member Institute of Automotive Mechanical Engineers [Ret], ASE Master Medium/Heavy Truck & Auto Technician USA -2002 Licensed Motor Mech NSW MVIC 49593 Current 2015
TO DIAGNOSE, TROUBLESHOOT OR FAULT FIND ANY AUTO SYSTEM....
Understand how system parts interact with one another. GOOD parts can then be established & the NOT GOOD problem/s part/s isolated for repair or replacement.

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Re: Lack of power climbing a hill

Post by Bruce W » Tue Apr 24, 2018 6:12 pm

PLEASE! Don't use brake cleaner to check for vacuum leaks! When brake cleaner is burned, it creates Phosgene Gas, and it's very dangerous. Don't take my word for it, I know some of you won't, just Google "Burn Brake Cleaner" and read some of the accounts of what happened to some who burned it. If you are stupid enough to ignore the warning, then please don't advise others to do this. This is way more dangerous than the asbestos in brake shoes and clutches. Well, maybe not "more dangerous", but much quicker! If I can't convince some of you who "know better", (you know who you are) maybe I can at least warn those who will listen, or who don't know any better. BW
G Trp 2nd Sqdrn 3d Armored Cavalry Ft. Lewis 1970-71. 43GPW(Sarge?) 47CJ2A(Teddy) 47CJ2A(Rusty) 48CJ2A(Uncle Linden) 53CJ3B(Nelybel) 88XJ(Pluto) NE CO

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Re: Lack of power climbing a hill

Post by csmarcher » Tue Apr 24, 2018 10:33 pm

No I've not hooked in a vacuum gauge, as A, I don't have one and B. I wouldn't have a clue exactly where to hook it into, saying that however I will get a friend to help me with that.

Once I've got the fuel system cleaned and sorted, I'm going to follow Luc's advice and let the engine break in and the rings to bed themselves in, and see how the performance goes from there.

I'll keep you chaps in the loop. Thanks again for all the advice

Gary Archer

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Re: Lack of power climbing a hill

Post by Ben Dover » Wed Apr 25, 2018 4:32 am

My CCKW made its' 2018 maiden voyage yesterday after 6 months in the stall, it is always kept in perfect tune but yesterday it ran sick, no power, hesitating every few feet and refusing to climb the slight grade in my field.
The culprit was the fuel. 15 gallons of fresh premium did the trick along with a few ounces of LUCAS Fuel Additive. Those of you that have the AC-T2 Fuel Filters should at least drain them to start the season off.
My MB and M-38A1? they escaped the same fate this year, but two years ago, the fuel in the MB did the same, even with Stabil. The problem did not exist when leaded fuel was available.
Been giving my fleet US Army PM for as long as they have been restored, MB (47 years), M-38A1 (43 years), CCKW (34 years) with zero issues except for the spring start ups with stale fuel. It's fun to do PM the Army way-makes me feel young and after all, it is a hobby and what better way to enjoy it than the good old Army ways. :wink:
I have practiced GI PM on mine and the dozens of surplus emergency MV's I have serviced for Gov't agencies over the past 60 years.
If you are going to "talk the talk", first you have to learn to "walk the walk", been there, done that, Willys and Army training works.:wink:
Last edited by Ben Dover on Wed Apr 25, 2018 7:18 am, edited 1 time in total.
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Re: Lack of power climbing a hill

Post by 17thAirborne » Wed Apr 25, 2018 6:53 am

Ben Dover wrote:
Wed Apr 25, 2018 4:32 am
The problem did not exist when leaded fuel was available.
Do you ever use the lead additive? Does it really help things, what do you recommend regarding the lead additive. I have been using it in my WLA, but have no basis or data for commenting on it's effectiveness or how it helps.

Thanks in advacne
Oz

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Re: Lack of power climbing a hill

Post by Ben Dover » Wed Apr 25, 2018 7:04 am

I used CD-2 Additive for years, it is supposed to hopefully duplicate the effect that lead produced on valves during combustion. I have since swapped to LUCAS Fuel Treatment and am impressed with it. I stocked up on CD-2 several years ago and it is waiting on the shelf, just in case
I have not noticed anything in the stores having the words "lead additive/ lead substitute"on the label.
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HONOR GRAD-WHEELED VEHICLE MECHANIC SCHOOL 1960 - US ARMY ORDNANCE SCHOOL(MACHINIST) ABERDEEN PG 1962 - O-1 BIRD DOG CREWCHIEF - 300,000+TROUBLE FREE M-38A1 MILES
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Re: Lack of power climbing a hill

Post by artificer » Wed Apr 25, 2018 7:34 am

Gary Archer check your PM's.
John GIBBINS Member Institute of Automotive Mechanical Engineers [Ret], ASE Master Medium/Heavy Truck & Auto Technician USA -2002 Licensed Motor Mech NSW MVIC 49593 Current 2015
TO DIAGNOSE, TROUBLESHOOT OR FAULT FIND ANY AUTO SYSTEM....
Understand how system parts interact with one another. GOOD parts can then be established & the NOT GOOD problem/s part/s isolated for repair or replacement.

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Re: Lack of power climbing a hill

Post by 17thAirborne » Wed Apr 25, 2018 9:17 am

Ben Dover wrote:
Wed Apr 25, 2018 7:04 am
I used CD-2 Additive for years, it is supposed to hopefully duplicate the effect that lead produced on valves during combustion. I have since swapped to LUCAS Fuel Treatment and am impressed with it. I stocked up on CD-2 several years ago and it is waiting on the shelf, just in case
I have not noticed anything in the stores having the words "lead additive/ lead substitute"on the label.
Great plan. I'll follow your lead or er,,, lead :lol:
Oz

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Re: Lack of power climbing a hill

Post by Ben Dover » Wed Apr 25, 2018 11:15 am

And I sort of agree with Luc, but feel better by believing that something has to replace what the lead was doing.
2011 MVPA PIONEER AWARD - MVPA #1064
HONOR GRAD-WHEELED VEHICLE MECHANIC SCHOOL 1960 - US ARMY ORDNANCE SCHOOL(MACHINIST) ABERDEEN PG 1962 - O-1 BIRD DOG CREWCHIEF - 300,000+TROUBLE FREE M-38A1 MILES
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Re: Lack of power climbing a hill

Post by Fabrizio » Wed Apr 25, 2018 11:21 am

It might be interesting to do a little research about the fuel avaliable in the USA when gbe go-devil was designed.
What I remember is that leaded fuel was far, far from being a common thing ;)
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