No fuel to the carburetor
Moderators: rickf, raymond, Mr. Recovery
Re: No fuel to the carburetor
Sorry here are some pictures
You do not have the required permissions to view the files attached to this post.
Re: No fuel to the carburetor
NOS fuel pump
Re: No fuel to the carburetor
NOS fuel pump picture
You do not have the required permissions to view the files attached to this post.
Re: No fuel to the carburetor
I thought the filter had different threads but my memory could very well be faulty, but if you threaded it in, guess not
mark
1968 m274A5
1960 m151
1981 m151A2
1964 m416
1971 m416
1968 m274A5
1960 m151
1981 m151A2
1964 m416
1971 m416
Re: No fuel to the carburetor
The filter has tapered pipe threads and it will split the inlet fitting if you put it in too far. It also hogs out the threads so that the correct filling will not hold tight. The correct fitting screws in hand tight and then you tighten the little flat nut with the teflon washer against the carb and that is your seal. Where was it leaking from? You are showing both the inlet and vapor return? I also can't see the teflon washer that should be on the inlet fitting. If you have no oil pressure you need to address that before playing with the fitting much more. Get a manual gauge and screw it into the port where the sending unit is and see if you actually have any pressure. You can get a cheap oil pressure test kit at Harbor Freight.
See here for the inlet deal.
viewtopic.php?f=2&t=12458
See here for the inlet deal.
viewtopic.php?f=2&t=12458
1964 M151A1
1984 M1008
1967 M416
04/1952 M100
12/1952 M100- Departed
AN/TSQ-114A Trailblazer- Gone
1984 M1008
1967 M416
04/1952 M100
12/1952 M100- Departed
AN/TSQ-114A Trailblazer- Gone
Re: No fuel to the carburetor
I just use a regular inline fuel filter(clear glass) using hose fittings with a hose nipple
mark
1968 m274A5
1960 m151
1981 m151A2
1964 m416
1971 m416
1968 m274A5
1960 m151
1981 m151A2
1964 m416
1971 m416
Re: No fuel to the carburetor
Hooked it up with the fitting still have fuel coming from the area where my finger is
You do not have the required permissions to view the files attached to this post.
Re: No fuel to the carburetor
It’s a new screw there are no cracks on the carburetor hand tight on the fitting
Re: No fuel to the carburetor
Did you tighten the flat nut against the carb on the fitting? Is there a plastic or teflon washer on there? That needs to be snugged up. As long as the fitting is in there snug and does not wobble around you can snug up that nut pretty good to stop the leak. That is what it is for.
1964 M151A1
1984 M1008
1967 M416
04/1952 M100
12/1952 M100- Departed
AN/TSQ-114A Trailblazer- Gone
1984 M1008
1967 M416
04/1952 M100
12/1952 M100- Departed
AN/TSQ-114A Trailblazer- Gone
Re: No fuel to the carburetor
Yes it’s a new nut I got a couple from TNJ Murray. I will try to snug it up a little tighter I don’t want to strip anything it took forever to find that fitting.i also ordered the oil pressure test kit. I hope it’s the gage I put a new sending unit on but have a couple more in case
Re: No fuel to the carburetor
Good afternoon I got the oil pressure tester and it was reading around 50 psi so I guess it’s the gage or a bad sending unit. I also am still having the fuel leak I may just try another carburetor.
Re: No fuel to the carburetor
Do you have the teflon gasket between the flat nut and the carb body?
1964 M151A1
1984 M1008
1967 M416
04/1952 M100
12/1952 M100- Departed
AN/TSQ-114A Trailblazer- Gone
1984 M1008
1967 M416
04/1952 M100
12/1952 M100- Departed
AN/TSQ-114A Trailblazer- Gone
Re: No fuel to the carburetor
Yes and it is a new nut with the white Teflon I am not sure how much to tighten it. I have the fitting snug but I have to hold the fitting with another wrench when I try to snug the Teflon nut.
Re: No fuel to the carburetor
That's normal, I just tell people "Common sense tight". If the fitting is snug in the carb and not wobbling in there then you do not have to worry about pulling the threads out. It is hard for me to say how tight because I have done it my whole life. You develop a feel for it and you just know when enough is enough. But if you only have two fingers pinching the wrench they that is not tight enough. If it pulls the threads out then so be it, it was never going to seal no matter what you did and at this point you take a 3/8 pipe tape and run it into the hole and restore the threads to pipe thread gently and go back to threading a filter in with teflon tape. Just go easy when you do it and it will be fine. The whole problem is this, the original threads are 28 TPI straight thread, A filter is 28 TPI tapered pipe thread so it will thread in just fine BUT, it is only tight at the very beginning of the hole. You don't even notice it is tight because it is pushing the aluminum out as it threads it's way further in so that the smaller tapered part can bite in. This works as long as the person does not put a wrench on it and tighten it like they would most any other pipe fitting, when they do that things break. Now, If a filter was already used like that on this carb then the straight threads you need for the correct fitting are too big until you get way into the hole and you end up with only 5-6 threads holding on. To make matters even worse I saw a military manual with a picture of a filter threaded directly into the carb!!!! DOH!!
1964 M151A1
1984 M1008
1967 M416
04/1952 M100
12/1952 M100- Departed
AN/TSQ-114A Trailblazer- Gone
1984 M1008
1967 M416
04/1952 M100
12/1952 M100- Departed
AN/TSQ-114A Trailblazer- Gone