jwolcott

So a cpl weeks ago on my way home from work I was going to get gas cause I was low but just before ibgot there I ran out of gas. Gf came gave me gas then it wasn't enough so ibran out again then it all started. The truck started both times but ran very poor once I would get past 1/3 throttle is will sputter an loose power then start backfiring. So I think ive narrowed it to the fuel pump or carb idk me an my brother are stumped an he's an auto tech he's just not use to working on such old rigs lol

Replaced
Cap
Rotor
Spark plugs/wires
Fuel filter
Compression. Test 150+ on all cylinders

So any suggestions? O an we replaced the carb gaskets that the carb sits on an under the base block thing. Any help would really help an yes I do have a manual but come on chiltons suck!!!

Kingjerd

Going dry enabled it to suck up some junk from the bottom of the tank. Fill it to half way with good 91 or better gas, maybe a little seafoam in the tank. At the least, itll clean it out.

bone collector

change the fuel filter and run some better gas.

slow-mo

Since you ran the fuel in the carburetor dry, check the fuel level in the carburetor bowl when the engine is running. The float needle may have become lodged and is not moving freely to control fuel level.

jwolcott

So I filled my tank up halfway an put seafoam in it an no difference. Tryed takin my catalytic covertor off to see if it made a differance an it didn't. Timing seems to be right too I'm getting stumped.

Also the level on the looking glass seems to be right in the middle even when its sputtering. A buddy of mine thinks many it the high idle jets?

Also what is the egr valve hose thing that's under my carb? It was never hooked up when I bought it bit my dad said I needed it hooked up so we jimmied one on there ill post some pics too to help.

jwolcott

Attachment 92681

I have a video too but not sure how to upload it

jwolcott

http://db.tt/9vnPZFGi
This of it running its from my dropbox acct.

jwolcott

Well I got the Webber the oem carb was too much for me tackle right now so I got the Webber 32/36 an ill get mine rebuilt it this doesn't work. I'm pretty sure the carb was gunked up from 25 yrs as it is.

Hopefully the Webber will be here tomorrow its only 3 hr drive from where I bought it online to me.

Buck87

Did you change the fuel filter?

jwolcott

In the first post it says I changed the fuel filter unless there's more than 1.

I know I won't be defeated by this problem an ill let u guys know what it it cause when I put this carb on ill have a vacum line tester and a fuel pressure tester so I WILL FIND OUT!

Also since I've had my truck my blinker lights don't work all that good I have to hold them down in a certain spot an my hazards don't work???? Another thing I need to figure out its such a hassle. But anyways thanks for all the help for this newbie.

jwolcott

In the first post it says I changed the fuel filter unless there's more than 1.

I know I won't be defeated by this problem an ill let u guys know what it it cause when I put this carb on ill have a vacum line tester and a fuel pressure tester so I WILL FIND OUT!

Also since I've had my truck my blinker lights don't work all that good I have to hold them down in a certain spot an my hazards don't work???? Another thing I need to figure out its such a hassle. But anyways thanks for all the help for this newbie.

jwolcott

Well I replaced the fuel pump an still haveing popping issues at the carb havnt done a fuel pressure test but I'm really fin stumped here..... Ugh I'm prolly just talkin to the internet anyways.

Well off to the shop it is.

bone collector

I just watched your video. you have missing emissions pieces on your truck. there is a large vacuum hose (big enough to stick your finger in) that is right by the carb and pointing at the fender, it leads to a resonator and I believe the pair valve. that is why it is popping. get a manual and find out what else is missing and replace it. good luck

jwolcott

Well I put the weber 32/36 carb on an it got rid of the whole emissions system I do have a big line pluged cause I didn't get the block off plate for the headers I'm pointing to it on the second pic.

bone collector

https://www.yotatech.com/forums/f114...ly-22r-205845/

do this.... it did wonders for my 87 22r

jwolcott

I don't think its a smog issue at hand

jwolcott

So I've pulled the tank an it looked good pulled the filter gonna replace it today then blow all the lines out. Then the whole fuel system will be flushed an refreshed an if I still have problems I can rule out the fuel system. So far I've replaced fuel filter in the tank the inline filter the fuel pump and the carburetor. So well see how she does tonight after I blow the lines.

For some reason I think its my valves not seating right an blowing back to the intake???? Just had an idea

Toyotagirl

I have an 87 4wd with a 22R I bought the motor from Oregon Engine Rebuilders, and put a brand new Weber 32/36 on it at the same time. I can't say that it has ever ran fantastic since. But it's recently started doing this sputtering and back firing when accelerating. So I brought it to someone new who installed the adjustable cam gear from LCE to get the timing marks to line up. So it's in time now, still doing it. The guy that's been working on it has tried different jets, he installed an electric fuel pump with fuel pressure regulator, still doing it. I did see some dirt in the carburetor fuel bowl when he was messing with that.
please help! I'm about to run it off of a cliff or sell it and I don't want to do either!