"New FJ" troubles

Pat Conlon · July 26, 2018, 12:33:05 PM

Quote from: ryanschoebel on July 26, 2018, 10:14:08 AM
I'm gonna pay more than I can afford, if I do it myself, I'm gonna break more than I can afford

Naaaa Give yourself some credit. Most folks would have walked away from their FJ if what happened to you, happened to them.

Not you young man!

I really admire that...

Cheers

Hydrate, hydrate, hydrate... protect those kidneys!

aj52 · July 26, 2018, 03:36:11 PM

I've completely strip the carbs today.
Remove every that could been stripped out.
Clean it thoroughly inside out,every channel.

I've found the reason also for the choke problem that it had.
The 2 cylinders that didn't kicked in when starting with choke,had an blockage at that tiny hole in float bowls.
It was completely blocked up. Not even the carb cleaner worked to unblock it.
I soaked it in degreaser for about an hour and use nozzle cleaner set to get that blockage open.

Tomorrow it is float level time. Hope it will go well and get it right quickly.

aj52 · July 27, 2018, 03:21:21 PM

Put the carbs back today .
Still leaking on the same carb. So it wasn't the thread seal tape that caused the leak.
I removed 2 other float bowls just to verify float levels. The others had more fuel in the bowls than the one causing the leak. So it's not float level.
I went on PO's word the day I bought it that carbs was serviced,but clearly he lied about it.
So new sets of carb kits for me now.

Pat Conlon · July 27, 2018, 03:38:19 PM

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.

aj52 · July 27, 2018, 04:33:38 PM

Replaced all the o rings everywhere there are o rings.
Found in files section the sizes of the o rings. For needle seat as per info there is 7mm by 1.5mm thick.
On that info it says to use 7.1mm by 1.6mm.
That is what I put in.
The other 3 seats that was also thread sealed,are also replaced.
I didn't mixed any parts,each carb has in what I've taking out of it.
The overflow began on 3 and after all the time spend by cleaning all the carbs,replacing all.the o rings and do float,the problem stays at 3.
This is way I came to the conclusion that it must be the needle or the needle seat itself.

aj52 · July 27, 2018, 04:50:37 PM

The choke problem is sorted out,work now as it should

racerrad8 · July 27, 2018, 04:55:57 PM

As series of questions....

Was there a wear ring in the rubber tip of the needle?
Is the spring loader plunger at the float tip stuck or working?
Was the bore(s) where the seat press is clean of all corrosion and/or pitting?
What did you set the float level to?
How did you check/set the float level?
Did you check both side of the floats?
Where is the fuel leaking from, they vent tube or the choke hose?

There are so many "little things" to ensure the carbies are "right"...

Here is a quote we got back today from a this member who we just built his carbs for who thought his FJ was running "right" before it.

Quote from: ryanschoebel on July 26, 2018, 10:14:08 AM
I'm gonna pay more than I can afford, if I do it myself, I'm gonna break more than I can afford

Hey Robert, I got the carbs on Tuesday, and just got a chance to mount them last night. The idle adjustment was annoying, but not nearly as hot as I was expecting. And I can see now what you mean by working fine, doesn't mean working right. The bike positively purrs. I hit 7k without breaking a sweat. Everything seems to be working great, including now my throttle actually snaps closed (never really did before) and the choke finally runs smooth.

I appreciate all the work!

I am sure he will be along and give his full thought and impressions.

Randy - RPM

aj52 · July 27, 2018, 05:15:16 PM

Hi Randy

Honestly,I didn't check for wear on rubber tip or pitting on the seat itself.
I thought it was the thread seal tape that PO or who ever it was,put onto the seat with the o ring into it's place.
So I checked all the o rings and found some to be hard and perished.

Floats I've done the way you said it should be done in files section. The one with photo's and where to measure it.
Yes,I've check both sides that it is the same height.
The carb that leaks through the tube has a slightly lower fuel level as compeared to 2 other bowls.

Sparky84 · July 27, 2018, 05:48:25 PM

Did you separate the carb bodies?

I cleaned and replaced everything but left them together and when I bench tested with fuel to check for leaks I found fuel leaking from the pipes between them. But mine is 84 1100

Quote from: aj52 on July 27, 2018, 03:21:21 PM
I went on PO's word the day I bought it that carbs was serviced,but clearly he lied about it.

Maybe he did have them serviced....and that's why we do a lot of our own stuff

ryanschoebel · July 27, 2018, 05:52:57 PM

Quote from: racerrad8 on July 27, 2018, 04:55:57 PM
As series of questions....

Was there a wear ring in the rubber tip of the needle?
Is the spring loader plunger at the float tip stuck or working?
Was the bore(s) where the seat press is clean of all corrosion and/or pitting?
What did you set the float level to?
How did you check/set the float level?
Did you check both side of the floats?
Where is the fuel leaking from, they vent tube or the choke hose?

There are so many "little things" to ensure the carbies are "right"...

Here is a quote we got back today from a this member who we just built his carbs for who thought his FJ was running "right" before it.
Quote from: ryanschoebel on July 26, 2018, 10:14:08 AM
I'm gonna pay more than I can afford, if I do it myself, I'm gonna break more than I can afford

Hey Robert, I got the carbs on Tuesday, and just got a chance to mount them last night. The idle adjustment was annoying, but not nearly as hot as I was expecting. And I can see now what you mean by working fine, doesn't mean working right. The bike positively purrs. I hit 7k without breaking a sweat. Everything seems to be working great, including now my throttle actually snaps closed (never really did before) and the choke finally runs smooth.

I appreciate all the work!

I am sure he will be along and give his full thought and impressions.

Randy - RPM

For sure, dollar for dollar, having RPM do the carbs up the right way was by and far the best money I've spent on this bike so far. Mind you, i know nothing about how to actually fix the carbs, but Im going to do a post on what was found/fixed ect. OP, if you send the carbs to RPM, They will be done RIGHT.

aj52 · July 27, 2018, 06:11:12 PM

Quote from: Sparky84 on July 27, 2018, 05:48:25 PM
Did you separate the carb bodies?

I cleaned and replaced everything but left them together and when I bench tested with fuel to check for leaks I found fuel leaking from the pipes between them. But mine is 84 1100

Quote from: aj52 on July 27, 2018, 03:21:21 PM
I went on PO's word the day I bought it that carbs was serviced,but clearly he lied about it.
Maybe he did have them serviced....and that's why we do a lot of our own stuff

Yes I did split it.
Change all the o rings on that fittings,8 in total.
The 4 on the T-fitting
The 4 on the 2 plastic fittings
All 4 needle seats
All 4 of the air mixer screw,that very small o rings.

aj52 · July 27, 2018, 06:14:53 PM

Quote from: ryanschoebel on July 27, 2018, 05:52:57 PM
Quote from: racerrad8 on July 27, 2018, 04:55:57 PM
As series of questions....

Was there a wear ring in the rubber tip of the needle?
Is the spring loader plunger at the float tip stuck or working?
Was the bore(s) where the seat press is clean of all corrosion and/or pitting?
What did you set the float level to?
How did you check/set the float level?
Did you check both side of the floats?
Where is the fuel leaking from, they vent tube or the choke hose?

There are so many "little things" to ensure the carbies are "right"...

Here is a quote we got back today from a this member who we just built his carbs for who thought his FJ was running "right" before it.
Quote from: ryanschoebel on July 26, 2018, 10:14:08 AM
I'm gonna pay more than I can afford, if I do it myself, I'm gonna break more than I can afford

Hey Robert, I got the carbs on Tuesday, and just got a chance to mount them last night. The idle adjustment was annoying, but not nearly as hot as I was expecting. And I can see now what you mean by working fine, doesn't mean working right. The bike positively purrs. I hit 7k without breaking a sweat. Everything seems to be working great, including now my throttle actually snaps closed (never really did before) and the choke finally runs smooth.

I appreciate all the work!

I am sure he will be along and give his full thought and impressions.

Randy - RPM

For sure, dollar for dollar, having RPM do the carbs up the right way was by and far the best money I've spent on this bike so far. Mind you, i know nothing about how to actually fix the carbs, but Im going to do a post on what was found/fixed ect. OP, if you send the carbs to RPM, They will be done RIGHT.

I wish I could do just that,send it to RPM.

ryanschoebel · July 27, 2018, 07:11:04 PM

I was gonna ask why cant you, then i saw your location. I get it now haha. Best of luck sorting it then...

aj52 · July 27, 2018, 07:24:52 PM

Quote from: ryanschoebel on July 27, 2018, 07:11:04 PM
I was gonna ask why cant you, then i saw your location. I get it now haha. Best of luck sorting it then...

With our post office here,I will either never receive it or get it back over a year's time,ready for a new rebuild.
Thanks for the encouragement,sounds as if I going to need lots of it.
I am.going to follow Randy's questions he asked me as a guideline to check everything tomorrow.

aj52 · July 28, 2018, 05:16:22 PM

Quote from: racerrad8 on July 27, 2018, 04:55:57 PM
As series of questions....

Was there a wear ring in the rubber tip of the needle?
Is the spring loader plunger at the float tip stuck or working?
Was the bore(s) where the seat press is clean of all corrosion and/or pitting?
What did you set the float level to?
How did you check/set the float level?
Did you check both side of the floats?
Where is the fuel leaking from, they vent tube or the choke hose?

There are so many "little things" to ensure the carbies are "right"...

Here is a quote we got back today from a this member who we just built his carbs for who thought his FJ was running "right" before it.
Quote from: ryanschoebel on July 26, 2018, 10:14:08 AM
I'm gonna pay more than I can afford, if I do it myself, I'm gonna break more than I can afford

Hey Robert, I got the carbs on Tuesday, and just got a chance to mount them last night. The idle adjustment was annoying, but not nearly as hot as I was expecting. And I can see now what you mean by working fine, doesn't mean working right. The bike positively purrs. I hit 7k without breaking a sweat. Everything seems to be working great, including now my throttle actually snaps closed (never really did before) and the choke finally runs smooth.

I appreciate all the work!

I am sure he will be along and give his full thought and impressions.

Randy - RPM

Randy
It leaks at the #3 carb out of the thin hose(choke vent tube hose).
It only leaks when the fuel pump is running. If I switch ignition off,the leak then stops.

If read a post now of someone in 2013 that FJmonkey(Mark) went over to help that had the same problem(guy went down with his FJ).
There you replied that it is the needle seat not sealing or o-ring bad.
Since I totally stripped and cleaned all 4 carbs completely,it can't be that it is dirty inside.
I will check the condition of the needle tip and the seat itself as you mentioned.

Hannes

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"New FJ" troubles