Puch Transmission

X Brandon Edge X /

77 Puch Newport (Maxi)

2 HP engine, Single speed trans

6600 Miles

I just changed the fluid in my trans and it seems to run kinda different from before. The engine revs higher when taking off from a stop, especially after idling for a minute or so at operating temperature. But if I run it wide open for a few miles, stop, and take off right away, it works fine. Plus, where it used to almost slam into the non-slipping state at 15 MPH, it now locks in softly. It used to lock on really hard at 15 MPH like it was a 2 speed trans. I used Mercon-Dexron III transmission fluid, because my brother said "It'll work in anything." Was he right or should I be running ATF? Or something else?

Other than that, it rides like a magic carpet!

Swarm and Destroy

X Brandon Edge X

Janus

Re: Puch Transmission

Puchs are supposed to take ATF. I have no idea if the transmission fluid you used will make a difference --probably not.

If you are saying that the moped runs smoother and better than it did before then it's probably because the gearbox had too much or too little fluid before. If it's running worse, then you put too much/too little into the gearbox. To make sure you have the right amount, fill the gearbox right up to the filling hole (or a little past it). Leave the plug screw out until the oil stops dripping. Put the plug screw back, and you're finished.

Too much fluid is not better! It'll just slow you down.

Chris.

Re: Puch Transmission

Kyle Witten /

I wouldn't use anything other then the manufacturer recommended type of transmission fluid. If I understand it correctly, on cars the friction pads used can break down if the wrong type of transmission fluid is used. Now I could be wrong--wouldn't be the first time--but if not, and if 2-cycle transmissions work on the same basic principles as car transmissions, you may be looking at a premature death of your transmission.

KyleChris wrote:

>

> Puchs are supposed to take ATF. I have no idea if the

> transmission fluid you used will make a difference --probably

> not.

>

> If you are saying that the moped runs smoother and better

> than it did before then it's probably because the gearbox had

> too much or too little fluid before. If it's running worse,

> then you put too much/too little into the gearbox. To make

> sure you have the right amount, fill the gearbox right up to

> the filling hole (or a little past it). Leave the plug screw

> out until the oil stops dripping. Put the plug screw back,

> and you're finished.

>

> Too much fluid is not better! It'll just slow you down.

>

> Chris.

Re: Puch Transmission

Hi! I'll tell you my MOTOMARINA experience with trans. oil. I was running the recommended straight 30 weight oil until about 7000 mi. when I noticed that the gear clash upon decelerating was getting louder.Being the experimenter I am, I changed to Fully Synthetic,5W-50 EXXON motor oil.It now runs great with almost no gear clash.Now on one with atf required,I'd just go get Fully Synthetic MOBIL 1 ATF,because it is far and away better for protecting that tranny! BYE!

Re: Puch Transmission

Correct me if I'm wrong..but isn't dextron III atf?

Re: Puch Transmission

Hi,Michael! Yes.Dexron III ,Mercon,Type F, and Type A are all ATF,but there was a brand named `ATF' and transmission repair shops seemed to prefer it sometimes.But I'm tellin' you this and it's a fact: YOU CANNOT BEAT A FULLY SYNTHETIC TRANSMISSION OIL for protection of all parts from heat and friction! If you must run a transmission oil,unless a manufacturer strictly forbids it,you should run synthetic like AMSOIL,MOBIL 1 etc. Nothing can stand high temps. and stress like fully synthetic tranny oil. I use it in anything that I care about,and I've never had any problems with the common varnish and burning smell that I had before trying it.I hung on to the old ways before,but when they invented synthetics I had to conform or be left behind. BYE!

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