Crunchy gears at high revs.

Bludge · Post by **Bludge** » Sun Sep 06, 2015 4:39 pm

My box is crunching all gears at high revs. i was having a problem with 3rd into 4th a while back and was advised to stick in some of the Amsol (?) gear oil, which i never got round to.

I think the clutch needs replacing, and i have just found a very slight leak on the clutch master cylinder behind the pedal.

Is it possible the small leak and the clutch on its way out could be causing the crunch, or is it likely im gonna need to stick a new box in there? dont wanna go dropping the expensive oil in if i end up having to replace the box.

Cheers!

Post by **RattyMcClelland** » Sun Sep 06, 2015 4:58 pm

Fix the leak put new fluid in and see what happens. That's the cheapest option and no brainer really.
Leaky fluid means less hydraulic pressure to engage the clutch meaning clutch never fully releases and grinds the box.

Post by **Donald** » Sun Sep 06, 2015 5:54 pm

Trying out ~£30 of oil is better/easier than replacing a bunch of stuff

Bludge · Post by **Bludge** » Sun Sep 06, 2015 6:38 pm

I didnt think about the loss of pressure, cheers for that!

i was gonna do the master cylinder first to see if it makes a difference. only reason i didnt want to chuck the oil in is that im proper hard up at the moment, and if the general consensus was the box needed replacing i didnt want to waste it!

Post by **semicolin** » Sun Sep 06, 2015 6:47 pm

Sounds like a loss of pressure causing the clutch to not fully disengage.

What makes you think the clutch is on its way out?

Post by **Donald** » Sun Sep 06, 2015 6:48 pm

Become a student, the gov will throw @wurlycorner's money at you and you can live the life of Riley.

Bludge · Post by **Bludge** » Sun Sep 06, 2015 6:54 pm

semicolin wrote:Sounds like a loss of pressure causing the clutch to not fully disengage.

What makes you think the clutch is on its way out?

There is a nasty juddering when you pull off from stopped in first, and there is a whining noise that goes away when you push the clutch pedal down.

Donald wrote:Become a student, the gov will throw @wurlycorner's money at you and you can live the life of Riley.

Sounds like a plan, might even be on the cards with a possible change in career, but im not getting my hopes up. i have been pinning all my hopes on the lottery so far.

Post by **RattyMcClelland** » Sun Sep 06, 2015 7:00 pm

Bludge wrote: im proper hard up at the moment!

Post by **vanzep** » Sun Sep 06, 2015 7:01 pm

4th gen gearboxes are very well made imo so unlikely to fail if maintained properly.
go for the genuine Honda OEM ATR clutch at about £150 if your changing it
i think you should still try some amsoil and take it from there

its got to be the cheapest least hassle option

Bludge · Post by **Bludge** » Sun Sep 06, 2015 7:24 pm

RattyMcClelland wrote:
Bludge wrote: im proper hard up at the moment!

Dont pretend like you dont love it.