"New FJ" troubles

[FJ_Hooligan]

Connect a clear tube to the float bowl drain screw, bend the tube so it's pointing up next to the float bowl gasket line, open the drain a few turns  and use that to see what the actual fuel level in the bowl is while the fuel pump is on.

[aj52]

 

Connect a clear tube to the float bowl drain screw, bend the tube so it's pointing up next to the float bowl gasket line, open the drain a few turns  and use that to see what the actual fuel level in the bowl is while the fuel pump is on.

Thanks for the tip,will check it like that prior putting it back

[aj52]

Took the bowl of today and remove the float.
And what do I see....there sits the o-ring piece that sheared off when I installed it,fine piece as the carb body cut it.
Other thing I saw was that the rubber tip has a 'ring' where it seals.

Thanks for everyone that gave their inputs and special to Randy for pointing out for what to look for.
Is like he said,there are small things to look out for.

Hannes

[ryanschoebel]

Glad to hear you were able to find it!

[Pat Conlon]

I called it...

Common cause: Fuel leaking past the o rings on the float needle seats. Replace those.
If they are already new, they are easy to damage if installed incorrectly.

Jelly donuts for meeee

[aj52]

I called it...

Common cause: Fuel leaking past the o rings on the float needle seats. Replace those.
If they are already new, they are easy to damage if installed incorrectly.

Jelly donuts for meeee

There you go Pat,thanks a lot

Hannes

[oldktmdude]

   Lubricating "o rings" with rubber grease or other suitable lube should stop this kind of damage whilst installing "o ringed" items.
   Regards, Pete.   

[Motofun]

I bought a gallon of RUGLYDE from the local NAPA store.  Rubber lube for everything from mounting tires on rims to o-ring installation.  A gallon will last about 7 life times.

[aj52]

This was the first one I've put in.I should've use oil.on it,but didn't. The other 3 I did,because I've felt the first one was a bit hard to assemble. So actually I should have known that it sheared. Learned my lesson on o-ring installation.

[aj52]

Connect a clear tube to the float bowl drain screw, bend the tube so it's pointing up next to the float bowl gasket line, open the drain a few turns  and use that to see what the actual fuel level in the bowl is while the fuel pump is on.

Should the carbs be at 90° when doing this.
And what height should the fuel be in the bowls when filled up
I'm going to use same method to set the floats as I've done it the first time as describe by Randy's post in the files section

Hannes

[aj52]

Connect a clear tube to the float bowl drain screw, bend the tube so it's pointing up next to the float bowl gasket line, open the drain a few turns  and use that to see what the actual fuel level in the bowl is while the fuel pump is on.

Should the carbs be at 90° when doing this.
And what height should the fuel be in the bowls when filled up
I'm going to use same method to set the floats as I've done it the first time as describe by Randy's post in the files section

Hannes

Please ignore,found my answer.
Lift front till carbs are level.
The height in tube should be at around 5mm from the top of bowl

[Sparky84]

Here's some pictures of mine.

[aj52]

Thank you Sparky

[ribbert]

.......It only leaks when the fuel pump is running. If I switch ignition off,the leak then stops.

Hannes

I've had good success with persisitent carb leaks after full rebuilds with this......



Before

Polishing out this divot




After

Noel

[FJ_Hooligan]

The angle of the carbs won't matter if you make the measurement at the approximate center of the float bowl. 

The fuel level will pivot around a fixed point at the center of the bowl.

If the carbs are tilted forward, the level will be higher at the front and lower at the back, but at the center, it will not move.