OMG ... My gearbox exploded! Again!

[evorobin]

To let go at cruising speed in 5th is beyond questionable...

[geoff_gti]

Well the Golf is back at the workshop now. Had a chat to the guys there, so they are going to make an assessment of it & we'll go from there. Looks likely I'll need to get a recon / 2nd hand box otherwise the labour etc to repair this depending on what's actually happened could outway the cost of just getting another box. Thanks for the replies & PMs so far - I'll keep you posted...

[zz2]

i didnt know you had a K04?!
what sort of power are you putting out with that?

can you buy stronger gearbox internals for mk4s?

[geoff_gti]

It's supposed to be close to stock MkIV R32 type figures according to the Oettinger site, so about 160kw but I've not had it dynoed. I got a 14.3 at Kwinana if that gives you an idea.

I'm not sure if the internals can be strengthened apart from this issue with the rivets. That was why I was wondering about the 6 spd box from an R as you'd think it would be stronger to begin with, but it would need work to fit FWD.

[h100vw]

Std boxes are plenty tough enough IMO. I had 165 KWatw of my A3 with no dramas.

No need to go spending money uprating the gears and the like.

Gavin

[geoff_gti]

An update for you -

Fifth gear has smashed itself to pieces, bits of teeth schrapnel everywhere. I had a look at it in pieces, and it turns out 5th is outside the main bit of the gearbox in it's own housing. The bearing where it slots into the main housing was chomped too.

A replacement 5spd box has been located (exactly the same code too) with significanly less km than mine I'm told - 30k vs 75k on mine. That means there's less wear to begin with which is good. I'll be double checking to see what warranty if any comes on this though as it has been sourced from over east.

Turns out too the gears hadn't punched through the box which is what I thought had happened (expecting at the time that it was the rivet issue), so I think what I must have seen was actually just the air con dripping & I was stressing at the time and didn't think about it logically haha

There will still be some out-of-pocket cost for me, but not the whole lot which is great, so I'm pretty happy with the outcome.

I've also seen a few other threads discussing gearbox oils too and Redline MTL has been mentioned several times. I realise oils ain't oils, but I wouldn't know the difference myself. Any pros/cons of this one etc? I'm thinking it would be good to get a really decent oil put in now to help minimise future wear but do it while it's going in now rather than next service etc.

Geoff.

[gareth_oau]

Again, I cannot believe this is the first time I've seen this thread!! dammit.

good luck with the repairs Geoff, must be incredibly frstrating for you

(or ignore yours and just dont give Matty his car back!!)

[geoff_gti]

What Golf???

Thanks Gareth

[gareth_oau]

LOL, gearboxes mean absolutely nothing to me!!

The only bits i understand is the bit under my left foot, and the bit in my left hand - the bits in-between are a magic mystery!!

[balkanac]

When are you getting it back Geoff?