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Location:
north brisbane
Registered:
September 2003
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2TG reving prob
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Mon, 03 November 2003 10:44
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hey all...can any one help me..i have a worked 2TG with twin solex'z....and wen i flore from iddle it it goes burrrrrr and then cuts out??? but if i let go of the accelerator it regains iddle......but if i rev it to about 3 grand and then flore it, the revs just climb???...it also has an accasional crackin(wierd noise) wen reving...??
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Location:
Carlingford, Sydney
Registered:
May 2002
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Re: 2TG reving prob
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Mon, 03 November 2003 11:13
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sounds like its flooding to me
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Location:
Tasmania
Registered:
May 2002
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Re: 2TG reving prob
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Mon, 03 November 2003 11:20
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The problem is the accelerator pumps in the carbies. Take the carbs off the manifold. When the carb is still full of petrol, open the throttle. You should see fuel squirting out from behind the throttle on all throttles. You probably have a problem here. Adjust the linkage to the accelerator pumps till it operates with all throttle movement. Or take it apart and clean.
If it pops and farts when you try and rev it (or you see fire in the carby), it is running too lean, or maybe it has a air leak. Adjust the fuel level higher. If it backfires through the exhaust when off throttle, down shifting etc, its running too rich, lower the fuel level or put smaller main jets in it.
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Location:
near chris and murray vic
Registered:
July 2002
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Re: 2TG reving prob
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Mon, 03 November 2003 11:21
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yeah it probably needs a bit of a tune or something to do with ignition needs replacing etc
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Location:
Tasmania
Registered:
May 2002
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 Re: 2TG reving prob
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Mon, 03 November 2003 11:37
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Yeah thats helpfull mate! Tell him he needs a tune-up. That should fix it!!!!
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Location:
north brisbane
Registered:
September 2003
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Re: 2TG reving prob
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Tue, 04 November 2003 04:31
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so if i got the carbs rebuilt??? that should help???
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Location:
Canberra
Registered:
August 2002
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Re: 2TG reving prob
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Tue, 04 November 2003 05:27
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sounds like its flooding out and running really rich
how long has it been since you had a tune up on it?
how old are the spark plugs and leads??
all things to consider,
personally id take it to place that has a good rep for twin carbs, dyno tune here in canberra do a good job but anywhere else im not too sure, ask around and get it tuned properly.
if symtoms persist. see a doctor.
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Location:
Tasmania
Registered:
May 2002
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Re: 2TG reving prob
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Tue, 04 November 2003 06:50
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Well I have given specific advice on how to fix the problem. If you can't do it you have to give the car to someone that can. Simple.
Yes the problem is the carbs, take it to a mechanic that knows.
If you get the whole car "rebuilt" that may just fix the problem also.
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Location:
Brisbane / Gold Coast
Registered:
May 2002
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Re: 2TG reving prob
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Tue, 04 November 2003 07:15
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It could also be the P.O.S Mikuni carbies having the auxiliary venturi fall out. I had that happen in 1985 with mine. I had to order three new ones to get it fixed.
They're not held in very well, and they either hang in for life or contantly fall out and flop around, leading to the fuel coming into the throat in big drops rather than a mist.
Webers are a good fix, but the best fix is .... well ... we all know what I'm going to say! 
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Location:
Brisbane
Registered:
May 2002
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Re: 2TG reving prob
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Tue, 04 November 2003 09:14
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Yeah I had exactly that happen to my 2T-G about 10 years ago... stupid Solex's. My "fix" was to sell the whole car.
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Club President
I supported Toymods
Location:
Sydney
Registered:
May 2002
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 Re: 2TG reving prob
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Tue, 04 November 2003 10:57
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Bill,
TRD actually recommend the Solex Mikuni Carb over ANY other side draft but hey I guess they wouldn't know !
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Club President
I supported Toymods
Location:
Sydney
Registered:
May 2002
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Location:
Brisbane / Gold Coast
Registered:
May 2002
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Club Member
Location:
sydney
Registered:
May 2002
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Re: 2TG reving prob
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Tue, 04 November 2003 18:49
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LOL hes bitten back... for three to fall of he cant have put the crimp lock washers on too well hahaha
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Location:
Fl
Registered:
February 2003
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Re: 2TG reving prob
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Tue, 04 November 2003 19:01
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I have had the same mikunis on my cars for about 10years now and have removed large venturis ( had to remove the primaries to remove the secondaries) they are currently on my 2tg and have had no problems with them since I bought them new. I have worked with both webers and mikunis as well as delorotos and of the three the webers are the most tempermental. They must be tinkered with more than the other two. As for performance when properly tuned and setup I feel they are are comparable. My .02 Be safe
Greg
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Location:
Brisbane / Gold Coast
Registered:
May 2002
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Re: 2TG reving prob
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Wed, 05 November 2003 01:15
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| IRA11Y wrote on Wed, 05 November 2003 05:49 |
LOL hes bitten back... for three to fall of he cant have put the crimp lock washers on too well hahaha
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Mine were absoultely stock, as they came from the factory. It was a long time ago and I can't remember if they has any lock washers or not. I do remember not changing whatever system they had though. I think I might have eventually used Locktite to keep it all in place once I got the new auxilary venturi's ... ? Can't remember, it was a long time ago.
Another 2TG that a friend of mine had in his KE-30 had the later versions, that had some external adjustment for something inside, (float height?) also had the same problem with his Mikuni's.
Again, for those that didn't/don't have the problem, you're lucky.
I have used Webers on my racing car since 1990 and all I do is check the float levels and balance the airflows between them. Again, some people may not be so lucky and have to work on them more than I do.
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Club Member
Location:
sydney
Registered:
May 2002
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Re: 2TG reving prob
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Wed, 05 November 2003 07:04
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yeah ive heard of the floats going out of sync but thats just as common on Webers.
I think from factory they come with a little soft washer that folds over the end of the nut to stop it from vibrating off, ill take a pic of mine when i can so you can see. Loctite wont work as the vibration losens up the stuff just as well as a rattle gun on the nut
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Club President
I supported Toymods
Location:
Sydney
Registered:
May 2002
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Re: 2TG reving prob
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Wed, 05 November 2003 11:14
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Micheal,
I believe you are dead right my friend.
I know from factory the main butterfly's have a lock washer with soft fold down tabs. That makes it basically impossible for the nuts to fall off when correctly assembled. I think its the same for the auxilary venturi's.
Hell Tina's old car saw many hours in the paddock and still didn't miss a beat.
Mukuni parts are getting hard to get but generally those that know how to tune them also know how to get the parts or something that will fit. (Ie Frank Kleinig)
Proper maintenance and good workmanship isn't luck any more than poor workmanship is the fault of the product assembled !
Not having a stab at you with that last one Bill, Hell I wouldn't even attempt a carby rebuild myself, I admit my limitations and leave those things I cannot to to a high enough standard to those I know can do the job.
I am working in the automotive industry now and its becoming a real sore point when people blame a product for human error. The fact is Mikuni's themselves are a damn good carby.
Thats not just my opinon it stated loud and clear by a company that should know. TRD are not a company that generally makes those sort of statements, they also stock both Weber and Mukini carbs (Among others).
But anyway enough of this crap, freakin cage, Dude you need to get your car checked out by someone who knows. Diagnoses over the net only works so well and you would need to have a good understanding of what is going wrong for it to be of much benefit.
A good tuning place will generally have the equipment to regraph the dizzy so they can check out your carbies AND ignition at the same time.
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Re: 2TG reving prob
