That'll be cool

Is this the only size that will fit? Dont suppose you know if any metric size will fit?

I don't find anything wrong with the current orings on the idler gear for the buggy.

Could you use a tiny zip-tie round the groove instead? though i guess not enough clearence!

What motor are you running, I'm running 7.5 23/78 gearing. Since using retaining compound on the pins I have had no issues. I gave the car about an hour of track time yesterday and upon inspection found one o ring destroyed but the pin well and truly in place:thumbsup:. transmission is really smooth too.:thumbsup:

What compound did you use?

I think it may only be affecting those that are running 7.5 and 6.5 motors? I'm running an 8.5

I ran a few packs in front of my house with a 9.5. Giving it full throttle blasts and hard braking on high grip asphalt....I hate traction rolling. Purposely did this after readjusting the diff after it slipped and putting the orings back on.

I'm running 6.5 in mine, and have had no issues at all - built as kit.

Loctite retaining compound 648

Took a look at my gearbox today after a practice on Sunday of 3-4 practice packs and one of the o-rings holding the pin in place is pushed right up and has been rubbing on something. (Running an 8.5 by the way)
The o-rings still in one piece, just, but I reckon one more run would have finished it off.
Still got a tight spot, still got a gap in the gearbox housings, will new housings fix this now? Was it a snag with the first housings only?

I don't mind buying some more housings if they'll cure the issue and I guess I'll just loctite the pins in place. ( But hey, I'd rather be sent them for free:D)

I'm not whinging, I love this car, I just want to put right some of its snags.

what if you double up on the oring?

thats an idea:thumbsup:

heatshrink like on CVDs?

dont think that is possible with the schumachers cvd's design

Did a test today with the pins glued and everything is perfect.

Smooth diff and gearbox :thumbsup:

Aren't we talking about layshaft? I mean use heatshrink instead of o-ring on pin, or under o-ring.
And of course this won't work on schueys dogbones, that's something that you can use only on CVDs or double joint CVDs

Pm sent

11mm, fraction smaller than7/16" which could be a good thing if you plan to go this route.

Noticed that people are putting grease on the gears (gear grease) could this also be causing probs?

i dont think the gear grease would be a problem as my o rings have disintagrated and i havent used the grease

if your o rings havent gone yet you need to glue your pins in or find some other way to retain the pins as the o rings will fail eventualy ..

Got an important meeting next weekend so I'll be having a good long look etc. May even just run the SX instead whilst some of the SV issues get resolved.

Didn't grease mine and the gears have a fine black dust on them, assuming its from the shaved o-ring. Theres a picture in the quality issues thread.
Hopefully with a bit of threadlock or glue and new rings all will be well.

Another disaster whilst track testing today, the lay shaft gear completely stripped!!!!! The pins and o rings are still where they should be and the metal idler looks ok. Will post pics later. Can't work out what caused this, any ideas??????

As the layshaft spun the pins moved out of the gear but still behind the o ring, snaged on the inside of the gearbox stripping the gear ???

then when the power stoped the pins are pushed back into the layshaft by the o ring >>???

is it totaly striped or just in one place :confused:

The pins are held in using retaining compound, they have definately not moved. The layshaft gear is now smooth all the way round, so yes it is completely stripped.

Same as one of the pics from the EPR regional.. Mmm what now.

i read that some people were filing down the cogs to make the box smoother , did you do this ? if so did you maybe file to much off ?

Slipper too tight?

I have thought that too.

You would think you should be able to run the slipper tight , the gear box should handle that !!

I lighty lubed my gears. No issues after a full race day with a 9.5.:thumbsup:

No filing here. As for the slipper it seemed ok, slipping slightly under inital load.

[ATTACH]Attachment 13935[/ATTACH]


Sorry for the quality,best I could do at work with iphone

I also found the 7/16" clip to big and put the o-ring back on .. but i after putting the car back together i thought it would have been smart to measure the oring area on the gear to get the correct size of clip needed.

Just measured the groove on the one I took out, it is exactly 10mm or 0.400" which is actually in between 3/8" and & 7/16"(which is slightly over 11mm) so if you wanted to go this route 10mm metric circlip is the way to go.

Heres my new tranny. I like it alot.
http://i16.photobucket.com/albums/b1...h_MAH01517.jpg

What did you change Raul?

New gears within the transmission, got them from Schumacher yesterday. Their customer service is AMAZING!...:thumbsup:

What happened to the original ones?

I was told to use them..;)