Help with Weber carb swap
#21
Registered User
#26
#27
sitting here drinking coffee and I think I know whats wrong with this thing!!!! I installed a fuel cell in the bed and did away with original tank and fuel lines. I ran new line from cell to in port of fuel pump with inline filter and then I ran a new line from return port of fuel pump back to the rollover fitting on the cell. I HAVE NO VENT!!!!!!!! Anybody have an idea how to have a vent and a return line without drilling a hole in the cell??
#28
You can do a couple things
One is to Drill a hole in the top of the tank and thread it for an elbow fitting to attach a hose to and hang it off the side. This would work better if the tank is baffled so that fuel is less like to slosh around and spill out of the vent tube.
Or the easiest solution would be to get a vented gas cap. Most automotive stores should have one in stock.
One is to Drill a hole in the top of the tank and thread it for an elbow fitting to attach a hose to and hang it off the side. This would work better if the tank is baffled so that fuel is less like to slosh around and spill out of the vent tube.
Or the easiest solution would be to get a vented gas cap. Most automotive stores should have one in stock.
#29
You can do a couple things
One is to Drill a hole in the top of the tank and thread it for an elbow fitting to attach a hose to and hang it off the side. This would work better if the tank is baffled so that fuel is less like to slosh around and spill out of the vent tube.
Or the easiest solution would be to get a vented gas cap. Most automotive stores should have one in stock.
One is to Drill a hole in the top of the tank and thread it for an elbow fitting to attach a hose to and hang it off the side. This would work better if the tank is baffled so that fuel is less like to slosh around and spill out of the vent tube.
Or the easiest solution would be to get a vented gas cap. Most automotive stores should have one in stock.
#30
oh, it's one of those kinds of tanks. I think you would be best off modifying the gas cap instead of the tank. Just do the same same fitting type deal, but do it on the gas cap so if you do mess up or it ends up leaking too much you just have to replace the cap and not fix the tank. Plus you won't get any metal shavings or debris in the tank while doing the modification.
#31
oh, it's one of those kinds of tanks. I think you would be best off modifying the gas cap instead of the tank. Just do the same same fitting type deal, but do it on the gas cap so if you do mess up or it ends up leaking too much you just have to replace the cap and not fix the tank. Plus you won't get any metal shavings or debris in the tank while doing the modification.
#32
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Noticed in your first post your timing is at 5btdc. have you tried kicking it up to about 8. believe that is where its should be anyways. the 22r's like a little extra.
#33
Registered User
iTrader: (1)
Hi Sandman,
It's tough routing out problems online, especially when you have a lot of info coming at you. Here's more;
The 32/36 is just barely enough carb for a bone stock 22R. If you have any performance mods, it will likely not provide enough air to the 22R at idle and it will run like crap. Also, Weber adaptor plates are notorious leakers. A vacuum leak will cause problems like this.
Also, your 32/36 may be under jetted. Here's how to find out; screw your idle mixture screw in until it seats (gently). Back it out 1.5 turns. Start truck. If truck won't idle, raise idle speed by turning in the speed screw. Once it barely idles, adjust your mixture to where it idles 'best.' If that 'best' spot is less than 1 turn out on the mixture screw, or more than 1 and 3/4 turn out, you need a jet kit and to follow the Weber tuning guide.
ALL adjustments are made with the vacuum advance disconnected and a fully hot engine.
Also, kick your timing up to at least 8* before tdc.
It's tough routing out problems online, especially when you have a lot of info coming at you. Here's more;
The 32/36 is just barely enough carb for a bone stock 22R. If you have any performance mods, it will likely not provide enough air to the 22R at idle and it will run like crap. Also, Weber adaptor plates are notorious leakers. A vacuum leak will cause problems like this.
Also, your 32/36 may be under jetted. Here's how to find out; screw your idle mixture screw in until it seats (gently). Back it out 1.5 turns. Start truck. If truck won't idle, raise idle speed by turning in the speed screw. Once it barely idles, adjust your mixture to where it idles 'best.' If that 'best' spot is less than 1 turn out on the mixture screw, or more than 1 and 3/4 turn out, you need a jet kit and to follow the Weber tuning guide.
ALL adjustments are made with the vacuum advance disconnected and a fully hot engine.
Also, kick your timing up to at least 8* before tdc.
#34
That is not true at all. I rebuilt my friend's 22R - bored .030 over, port/polished head, oversized valves, Engnbldr 261 camshaft, LCE headers, 2.25" exhaust, Offy intake, lightweight flywheel, desmogged and Weber 32/36 with K&N filter adapter (I have built my engine similar, minus the Cam). He had it Dyno'ed at 141 HP and that was before he installed the Crane ignition and coil. It doesn't stumble during hard acceleration and has a good clean idle - He's also getting 18mpg with 31's. Now granted, the engine could make more and better power with a Weber 38 or 40mm sidedrafts, but to say that "The 32/36 is just barely enough carb for a bone stock 22R" is an extreme understatement. The 32/36 is a very practical and economical way to alleviate the problems of the stock Aisin carb and produce adequate power for a mildly to moderately built engine. If it wasn't then it wouldn't be such a popular add-on
#35
Well after tuning carb over and over and over again. Getting it to run pretty good and then starting the next day and it runs awful. Almost gave up hope, I got it running good, loaded on the trailer to take it to the muffler shop. Got there and started it and it sounded like only running on 3 cylinders and flooding really bad so when I got it back home I decided to check and see if maybe I fouled one of the new plugs. Guess what, one plug wire did not snap when I went to remove it!!!!!! Pushed like hell and finally got it to snap down on the plug, crossed my fingers and it started right up and purred like a kitten!!!! Damn I feel like a dumb ass!! So started all over with tuning the new carb and now it runs perfect! Sounds really good too, with the flowmaster and duals!!
#36
Well after tuning carb over and over and over again. Getting it to run pretty good and then starting the next day and it runs awful. Almost gave up hope, I got it running good, loaded on the trailer to take it to the muffler shop. Got there and started it and it sounded like only running on 3 cylinders and flooding really bad so when I got it back home I decided to check and see if maybe I fouled one of the new plugs. Guess what, one plug wire did not snap when I went to remove it!!!!!! Pushed like hell and finally got it to snap down on the plug, crossed my fingers and it started right up and purred like a kitten!!!! Damn I feel like a dumb ass!! So started all over with tuning the new carb and now it runs perfect! Sounds really good too, with the flowmaster and duals!!
Last edited by kawazx636; 05-22-2014 at 09:40 AM.
#37
Registered User
iTrader: (1)
That is not true at all. I rebuilt my friend's 22R - bored .030 over, port/polished head, oversized valves, Engnbldr 261 camshaft, LCE headers, 2.25" exhaust, Offy intake, lightweight flywheel, desmogged and Weber 32/36 with K&N filter adapter (I have built my engine similar, minus the Cam). He had it Dyno'ed at 141 HP and that was before he installed the Crane ignition and coil. It doesn't stumble during hard acceleration and has a good clean idle - He's also getting 18mpg with 31's. Now granted, the engine could make more and better power with a Weber 38 or 40mm sidedrafts, but to say that "The 32/36 is just barely enough carb for a bone stock 22R" is an extreme understatement. The 32/36 is a very practical and economical way to alleviate the problems of the stock Aisin carb and produce adequate power for a mildly to moderately built engine. If it wasn't then it wouldn't be such a popular add-on
The engnbldr cam is a fine choice, use a cam very much larger and you'll see my point. The 32/36 is a fine carb that's vastly simpler than a stock carb but also flows less cfm than a 22R stock carb. It's a great choice for stock to very, very mild engines. The build you describe above is quite mild. ANY 22R will make more power and run smoother with a properly tuned 38. Keep your foot out of it and you'll get similar mileage.
#38
Registered User
Ha!
Sounds like me when I did my head gasket for the first time, put it all back together and started it, and it just wasn't right. Weak, sputtery, I thought I had really messed something up.
Well, turns out I had really messed something up...when I was putting plug #3 back in, I somehow pushed the gap closed, so there was no gap to spark across and I was only running on three cylinders. Ran great as soon as I got that worked out!
Sounds like me when I did my head gasket for the first time, put it all back together and started it, and it just wasn't right. Weak, sputtery, I thought I had really messed something up.
Well, turns out I had really messed something up...when I was putting plug #3 back in, I somehow pushed the gap closed, so there was no gap to spark across and I was only running on three cylinders. Ran great as soon as I got that worked out!
#39
Registered User
iTrader: (1)
Ha!
Sounds like me when I did my head gasket for the first time, put it all back together and started it, and it just wasn't right. Weak, sputtery, I thought I had really messed something up.
Well, turns out I had really messed something up...when I was putting plug #3 back in, I somehow pushed the gap closed, so there was no gap to spark across and I was only running on three cylinders. Ran great as soon as I got that worked out!
Sounds like me when I did my head gasket for the first time, put it all back together and started it, and it just wasn't right. Weak, sputtery, I thought I had really messed something up.
Well, turns out I had really messed something up...when I was putting plug #3 back in, I somehow pushed the gap closed, so there was no gap to spark across and I was only running on three cylinders. Ran great as soon as I got that worked out!
It's always nice when it's something ridiculous. It is so hard to try to guide people through diagnosis online as one problem may have so many different sources. Glad you found it, Sandman.
#40
Thanks guys, I'm very glad it's finally fixed. I do want to put a regulator on it. I bought one from auto zone and its a real piece!! What brand regulator are you guys running? I,m going to order one in the next couple days. Also, I read somewhere that I should block off the return on the mechanical pump. Is that true?