Air leak with new kit?

Peter Baudendistel /

Mar 19, 2009 06:04PM

I’m having some trouble with my moped and it seems you’re the one to ask. I cannot get rid of this air leak I’ve been having for the life of me. I’ve redone the gasket on the block 3 times, and each time it reappears. Maybe you can offer some input/advice that’ll help the situation.

I’m working on a 2001 Tomos TTLX with an A35. I bought a 70cc alukit from treats.

My procedure has been as follows:

1-Remove nuts

2-Remove head

3-Remove cylinder

4-Remove wrist pin retaining clips

5-Remove wrist pin

6-Remove piston

7-Scrape off old base gasket as well as possible

8-Place new base gasket in place (3 times-Once dry, Once coated in 2 stroke oil, once with silicone gasket goo)

9-Put on new piston, wrist pin, clips

10-0il new cylinder and place on.

11-Put on head

12-Put on nuts, then tighten in x pattern

Any insight would be greatly appreciated.

I'm at a lost. I don't know what it could be, other than a warped head.

Re: Air leak with new kit?

justin turner /

onlythebest131

Mar 19, 2009 06:08PM

yes, it is not flat, hold it up to the light with a ruler or hold it on a peice of glass and see if it is straight,.

Re: Air leak with new kit?

Zeke /

ai

Mar 19, 2009 07:07PM

torque wrench? and is one side smashed or are the gaskets not smashed at all?

Re: Air leak with new kit?

Peter Baudendistel /

bean OP

Mar 19, 2009 08:15PM

No torque wrench. I bought one that was too large, and was too lazy to go get a resizer. I've decide I should go fix that before I go back to work on it.

THe gasket looks to be getting pressure equally.

Head doesn't look warped to the eye.

Re: Air leak with new kit?

Chris Rice /

Go to branch

chrisr

Mar 20, 2009 01:37AM

Is it your head or your base gasket that is leaking?

Re: Air leak with new kit?

magic bryan /

Go to branch

bryanr

Mar 20, 2009 01:52AM

culprit could be at the intake somewhere too, don't forget to check there

Re: Air leak with new kit?

Sunset Paul /

prodrigues

Mar 20, 2009 02:01AM

the nuts only need to be like ten or eleven foot pounds of torque right? that's not much. make sure you don't over tighten them.

Re: Air leak with new kit?

Peter Baudendistel /

bean OP

Mar 20, 2009 11:05AM

Could you point me to where you found that they only need to be 10-11 ft.lbs?

Re: Air leak with new kit?

bryan /

thefishstop

Mar 21, 2009 01:25PM

most peds its like 10 lbs but i put all my kits on to 11.

and i make my gaskets from this rubber like stuff that i got from i think auto zone this stuff works grat i tried it the first time after tiring for like 6 months to get a kit to seal but that rubber gaskets on and it sealed

Re: Air leak with new kit?

Weak-Ends Tj /

demsin79

Mar 21, 2009 01:38PM

Like magic bryan said..check you intake and crap..you have to take of your intake to put the cylinder on..maybe you reed gaskets..who knows..check'em all.

Re: Air leak with new kit?

.Allen Schlung /

Go to branch

allens

Mar 21, 2009 05:49PM

shit... i put about 18 lbs and use lots of loctite on my mobys....never had a head or base leak ever....Don't attempt with a puch, since they have wimpy engine bolts and will snap..

What ever force you go with, just make sure it's EVEN. That is more important.

Re: Air leak with new kit?

imonfire /

imonfire

Mar 21, 2009 11:13PM

If you can start it up without it getting out of control and reving to top throttle then: start it and use carb cleaner and spray where; the intake meets the engine, where the intake meets the carb, and the base of the kit. If it starts to stall; thats where a leak is.

a35's tend to have air leaks where the intake/reed block meet the engine. Its hard to get rid of too. I had the same problem. I used brand new gaskets along with permatex motoseal 1 gasket maker. I also ran a bead of it along the outside of the intake too just to make sure. Its the only thing i could find to do the trick.

MOPED ARMY

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