Booniebashinbetsy Posted March 17, 2015 Report Share Posted March 17, 2015 Just installed a new weber 32/36 on my 85 with the z24 and I can't get the mixture and idle screws right. It turns over but will barely idle and it sound like crap sputtering, I can get the idle to change but nomater what it still cuts out and sputters 1 Quote Link to comment
petercscherer Posted March 17, 2015 Report Share Posted March 17, 2015 Step one is getting the mixture right, even at a higher idle than desired. Then you can back the idle-screw down to get it where you want it. I always start my weber tuning by getting it as Lean as possible and keep backing out the screw until it's running "okay", then I'll mess with the idle. If you bought your kit from Redline, they have great customer support over the phone to talk you through it. ~Peter 1 Quote Link to comment
Booniebashinbetsy Posted March 17, 2015 Author Report Share Posted March 17, 2015 I did order from redline, so I might try the customer support tomorrow but I'll try turning the mixture some more to it started to rain on me and I lost my drive i had to step away for the day 2 Quote Link to comment
Booniebashinbetsy Posted March 17, 2015 Author Report Share Posted March 17, 2015 So I've adjusted my timing and mixture and it's still sputtering and putting, it's just not running clean if at all and nothing so far has helped at all I can get the idle to change but it still is sputtering and backfiring thru the carb any ideas 1 Quote Link to comment
petercscherer Posted March 18, 2015 Report Share Posted March 18, 2015 Are you sure that you've plugged all the extra vacuum lines and holes? How did the phone call to Redline go? 1 Quote Link to comment
wayno Posted March 18, 2015 Report Share Posted March 18, 2015 Did you use an adapter to mount the carb on the 720 manifold? Are you positive that it is on there with no leaks? 1 Quote Link to comment
Booniebashinbetsy Posted March 18, 2015 Author Report Share Posted March 18, 2015 Finally!! I got it figured out it was a leak under the adapter. I got a new gasket and it runs clean. Now I just gotta adjust my mixture and timing a bit 2 Quote Link to comment
petercscherer Posted March 18, 2015 Report Share Posted March 18, 2015 Glad that you have it sorted! ~Peter 1 Quote Link to comment
Booniebashinbetsy Posted March 19, 2015 Author Report Share Posted March 19, 2015 Ok... Almost there, I've got all the vacume leaks taken care of. I think I've got everything hooked up right and I'm getting close with the mixture and timing, it seams to run close to tip top, but now it's dieseling realy badly, way worse than befor but only when the engine is warmed up, any ideas to what's causing the dieseling? Is it just the mixture isn't right yet or is it something different Quote Link to comment
petercscherer Posted March 19, 2015 Report Share Posted March 19, 2015 I had diesel issues when the mixture was too rich, or the idle was too high. Idle should be around 750-850rpm. Leaning out the mixture always fixed my troubles. ~Peter Quote Link to comment
Booniebashinbetsy Posted March 19, 2015 Author Report Share Posted March 19, 2015 My idle is a touch high, it seams to change randomly tho, thank you I wasn't aware that would cause dieseling thank you, I'll lower it and see what happens Quote Link to comment
wayno Posted March 19, 2015 Report Share Posted March 19, 2015 You have a Weber now, it doesn't have the fuel cutoff like the stock carb has, so dieseling is going to be a part of life now, I just push the clutch in, put it in gear, turn the key off and let out the clutch while my other foot is on the brake, I have been doing it so long, that I don't even notice doing it anymore. What I don't understand about this dieseling issue is why do folks put the truck in neutral to shut it off? I always leave my truck in gear when I park it, always. 1 Quote Link to comment
petercscherer Posted March 19, 2015 Report Share Posted March 19, 2015 What I don't understand about this dieseling issue is why do folks put the truck in neutral to shut it off? I always leave my truck in gear when I park it, always. Agreed, since people pretty much always push the clutch in while starting anyways. Quote Link to comment
Booniebashinbetsy Posted March 19, 2015 Author Report Share Posted March 19, 2015 Can you install a cutoff and if so is it an expensive part or what? This is the first carb work I've ever done I just got tired of the stock carb. Also should I install a fuel pressure regulator I've heard that the webers only need like 3 pounds of pressure and I have the stock fuel pump still and I think they push 6 to 7 pounds correct me if I'm wrong I'm not an expert by any means, haha Quote Link to comment
JoeCool Posted March 19, 2015 Report Share Posted March 19, 2015 You can correct the dieseling issue two ways. I recommend doing BOTH. That is what I did on mine. 1)Use 91 or higher octane fuel. 2)Get an idle fuel cutoff/ANTI-DIESELING solenoid. http://www.webercarbsdirect.com/product_p/43914.060.htm Redline sells them too, but they're too proud of it at $40! Quote Link to comment
Booniebashinbetsy Posted March 19, 2015 Author Report Share Posted March 19, 2015 Thank you that sounds like what I need lol, is it easy to install Quote Link to comment
wayno Posted March 19, 2015 Report Share Posted March 19, 2015 You can correct the dieseling issue two ways. I recommend doing BOTH. That is what I did on mine. 1)Use 91 or higher octane fuel. 2)Get an idle fuel cutoff/ANTI-DIESELING solenoid. http://www.webercarbsdirect.com/product_p/43914.060.htm Redline sells them too, but they're too proud of it at $40! I did not know Weber carbs had this option, first time I heard of it, is this something new out, or do they all have the hole for the lack of a better word to put that part in? Quote Link to comment
Booniebashinbetsy Posted March 19, 2015 Author Report Share Posted March 19, 2015 That is a good question I don't recall mine having a vacant port for somthing like this, dose it insert into the intake manifold? As I said befor I've never done any carb work befor this Quote Link to comment
wayno Posted March 19, 2015 Report Share Posted March 19, 2015 What you need to understand is the the fuel cutoff cuts the fuel off, it kinda works like the ones on a normal diesel engine with a VE type injection pump, when the key is turned off, the fuel is gone, if there is no fuel, it cannot run/diesel, it is in the carb that the fuel is cut off. I just pulled out a brand new Weber I have, I could not find anyplace for a fuel cutoff solenoid, I suspect one would have to order a Weber with that option. That is a good question I don't recall mine having a vacant port for somthing like this, dose it insert into the intake manifold? As I said befor I've never done any carb work befor this Quote Link to comment
ggzilla Posted March 19, 2015 Report Share Posted March 19, 2015 Just set the idle speed. It will stop the dieseling. 1 Quote Link to comment
dat521gatherer Posted March 19, 2015 Report Share Posted March 19, 2015 $15 plus shippimg. Quote Link to comment
Booniebashinbetsy Posted March 19, 2015 Author Report Share Posted March 19, 2015 That's in my budget. Dose it plug in to any weber or do you half to have a special one with a port for it I'm still confused on that? Quote Link to comment
DatsunHiLife Posted March 20, 2015 Report Share Posted March 20, 2015 My older Weber had the cut off solenoid on it and it still dieseled like crazy. I now have a brand new Weber 22/36 with out the solenoid and it still diesels like a MOFO!! I did lower my idle and it helped....juts a little bit. I am quite used to dumping it in 4th and its at least a clean shut off. when you do get your solenoid. let us know the results. please Quote Link to comment
ggzilla Posted March 20, 2015 Report Share Posted March 20, 2015 Have you tried setting the idle to 600 rpm? Should stop the diesel. 1 Quote Link to comment
Booniebashinbetsy Posted March 20, 2015 Author Report Share Posted March 20, 2015 I did lower my idle to 6 or 700 rpm and it did help a lot I haven't ordered a cut off yet but I will let you know! I did wonder if it would help to install a fuel regulator? Dose anyone have any ideas on that Quote Link to comment
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