Trollhole carb on F motor...2nd one...what am I doing wrong? (1 Viewer)

[Fargenamps]

Hello guys...ok...here is the long story short: 1971 FJ55 stock F motor Would run and start with original carb but wouldn't stay running...old and tired. Read so many good things here about the troll hole carb I ordered one to throw on... First one had issues...would start with starting fluid...run for 20 sec...then die...fuel loaded up half way in the glass window which I've heard is way too much....drained fuel from bowl...used a paperclip per Troll to move the float up and down to make sure it wasn't stuck...same deal...would start with starting fluid....then die...window loaded up with gas again... PT2 So...troll sent me another carb to replace the first one...got it installed....DEJA VU...same s*** is happening again....exactly...fires for 15-20 sec with starting fluid and then once the bowl loads up with gas it won't run.... What the hell is going on?...so frustrated with this...I heard from many others this carb should just drop on and work....two failures at this point...any advice and thoughts are greatly appreciated.... Side note...I have not touched one adjustment on the carb and 100 % positive there is pristine gas going in...drained tank...new fuel filters before and after fuel pump for good measure....no debris at all when draining bowl from carb... Thanks! Benjamin

 

[LAMBCRUSHER]

Hello guys...ok...here is the long story short: 1971 FJ55 stock F motor Would run and start with original carb but wouldn't stay running...old and tired. Read so many good things here about the troll hole carb I ordered one to throw on... First one had issues...would start with starting fluid...run for 20 sec...then die...fuel loaded up half way in the glass window which I've heard is way too much....drained fuel from bowl...used a paperclip per Troll to move the float up and down to make sure it wasn't stuck...same deal...would start with starting fluid....then die...window loaded up with gas again... PT2 So...troll sent me another carb to replace the first one...got it installed....DEJA VU...same s*** is happening again....exactly...fires for 15-20 sec with starting fluid and then once the bowl loads up with gas it won't run.... What the hell is going on?...so frustrated with this...I heard from many others this carb should just drop on and work....two failures at this point...any advice and thoughts are greatly appreciated.... Side note...I have not touched one adjustment on the carb and 100 % positive there is pristine gas going in...drained tank...new fuel filters before and after fuel pump for good measure....no debris at all when draining bowl from carb... Thanks! Benjamin

there is a wire/ 2 wires coming from a pot on the rear passenger corner of carb, no? that should be the idle fuel solenoid; it needs 12 volts when ignition is on to let idle metered fuel into the carb. sounds like you either don't have it hooked p or it isn't getting volts(blown fuse). HTH

could also be clogged idle passege, but prolly not on 2 different carbs tho...

 

[Fargenamps]

there is a wire/ 2 wires coming from a pot on the rear passenger corner of carb, no? that should be the idle fuel solenoid; it needs 12 volts when ignition is on to let idle metered fuel into the carb. sounds like you either don't have it hooked p or it isn't getting volts(blown fuse). HTH could also be clogged idle passege, but prolly not on 2 different carbs tho...

cool thx!!! Just hooked a temp home run wire from the batt 12v to the solenoid...good news is I can hear it engage when I hook it up...bad news is my BATT is toast from cranking it over all day;(....charging now...will report back ASAP....cheers! Ben

 

[Fargenamps]

cool thx!!! Just hooked a temp home run wire from the batt 12v to the solenoid...good news is I can hear it engage when I hook it up...bad news is my BATT is toast from cranking it over all day;(....charging now...will report back ASAP....cheers! Ben

Went and bought a new BATT....still the same...even drained the bowl again and blew it out with compressed air...nuttin...

 

[Gonzo55]

Did he send you a ported vacuumed carb base? If so it won't run right with your stock distributor.Also check PVC valve