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3T-C Mikuni Solex Twins Major Internal Issues

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Your a doodle. .... Good day to you....~tips hat~'n' walks away......

....~walks back in~

I bet if you pull those leads off and hold just close enoough to the plug for the spark to ark between the lead and the plug the engine will pick up a cylinder...

Edited by GJM85

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  • Author

Your a doodle. .... Good day to you....~tips hat~'n' walks away......

....~walks back in~

I bet if you pull those leads off and hold just close enoough to the plug for the spark to ark between the lead and the plug the engine will pick up a cylinder...

QUOTED.

 

I'm not that bright but i think you are saying that I'm not taking the leads far enough away from the plug to stop the spark plug sparking .......... .

 

if not I'm confused

 

GOOD DAY TO YOU SIR ...........:rolls:

Edited by t18drifts

OK, I think what he is saying is re do the compression test in the fashion that he described earlier. He seems to think that one of the carbs is affecting the test, which in my experience is entirely plausible. If you're not sure, take it somewhere to get help.

 

You could dump a heap of cash to rebuild, but if you whack the same carbs on you could well have the exact same problem. It might take you a little while, but learn to trouble shoot this stuff now. Once learnt, it's never unlearnt :)

  • Author

hmmm alright ill see what i can do and get back to you fine gentle men

I recently blew a head gasket on a 2tg. ran and drove like ass, did a compression test, and got similiar results in 3 and 4 cylinder.

 

took the head off, and the gasket had blown between 3 and 4. not surprising really...

 

anywho... put a new gasket on, torqued head yadda yadda, and now she's running like a dream. didn't have to play with carbies or anything.

 

if you're sticking to a budget, i'd suggest chucking a new headgasket on the pushrod motor and seeing if you can get it going before worrying about finding a 'g' head and putting it on.

 

(another good option would be to buy a complete running 2t/3tg and drop that in, but expect to pay 1500 for a rebuilt one with some good bits in it.)

  • Author

I recently blew a head gasket on a 2tg. ran and drove like ass, did a compression test, and got similiar results in 3 and 4 cylinder.

 

took the head off, and the gasket had blown between 3 and 4. not surprising really...

 

anywho... put a new gasket on, torqued head yadda yadda, and now she's running like a dream. didn't have to play with carbies or anything.

 

if you're sticking to a budget, i'd suggest chucking a new headgasket on the pushrod motor and seeing if you can get it going before worrying about finding a 'g' head and putting it on.

 

(another good option would be to buy a complete running 2t/3tg and drop that in, but expect to pay 1500 for a rebuilt one with some good bits in it.)

 

ok just thought of somthing i have a fare bit pressure soming from my rocker cover not realy sure on if its ment to or not but it was enough to blow my dipstick out when i for some stupid reason though i needed to block one of 2 becuse one hose goes to the intake mani the over was blocked now its goes to atmo i think its normal for it to have enough pressure to blow lee dipstick out

 

 

id love to get my hands on a 2tg 3tgte ect ect i have the cash literaly THE cash I'm not perticuly on a budget.

 

at the end of the day I'm going to be tracking this car aswell as daily until i can get another car so id prefer the better power for $$$$ option bolt in ect but i love the sound of side drafts I'm addicted to that noise :yes:

My 3t blows the dipstick out sometimes only when you rev it 6k or higher but just pressure, think I may need a new pcv.

  • Author

yeah i had stupidly blooked any ventilation of :glare: in a rush of wanting to test the carbs lol

  • Author

ahh one more thing um i don't know if it means anything but when i hold the choke the carb for 3 and 4 it starts reving up and running nicely

 

and on the carb for 1 and 2 if i open the choke well it chokes and wants to die

that means 3/4 carbs are running lean

 

swap 3/4 carby to 1/2?

  • Author

righto i think that could work depending if i can change the throttle to either side of each carb ahhh man fff so anoyed

don't f@$k with the carbies until you get the compression problem sorted.

 

you will only need to rectify things again afterwards...

  • Author

yeh I'm not doing that cbf remounting and shit

Mate, stop talking and hoping it will fix it's self.

Bite the bullet and take the head off, sounds like a burnt out valve!!!

i also notice on the carb for 3 and 4 on the chrome filter back plate there is brownish black schorch marks

 

I second that- burnt inlet valves.

 

Evan's right however, swapping carbs will take the whole 'carb' question out of it. You could do the same compression test with the carbs swapped & see. In theory they don't make any difference, but you might have loose venturis in the rear carb or the throttle might not be opening fully. If it makes no difference you've already started stripping the head....

 

Oh- Also, you should hear the valves leaking with the hose in your ear, the carbs will never sound the same. You could listen during the cranking compression test and hear it too.

Edited by altezzaclub

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