Hi, difficult to shift gear under track conditions!

Road-race engines and ancillaries - general discussion
Post Reply
torkil
Posts: 63
Joined: Thu Dec 30, 2010 3:10 pm
Contact:

Hi, difficult to shift gear under track conditions!

Post by torkil » Fri Sep 13, 2013 10:07 am

Hi on my trackday yesterday i had a little problem ,espessely whenn i rew out 2nd and change over to 3 rd ,it feels like the clutch want free out ,and i have to force the lever slowly over,to 3rd

Whenn i use the car in normal road conditions there is no problem ,
There is no air in the hydralic clutch system ,
My thinking about this problem is!
1 clutchplate has problem to free under high revs, Perhaps related to viberations!


The gearbox in my X 1/9 is a standard Strada 130 ZF type,
Any hints Reg Ove Thorkildsen Norway
GC_41

Guy Croft
Site Admin
Posts: 5004
Joined: Sun Jun 18, 2006 9:31 am
Location: Lincoln, UK
Contact:

Re: Hi, difficult to shift gear under track conditions!

Post by Guy Croft » Fri Sep 13, 2013 10:25 am

maybe the clutch is over-stroking - pushing too far


G
Guy Croft, owner

Biancorally
Posts: 52
Joined: Sat Jul 09, 2011 2:30 pm
Contact:

Re: Hi, difficult to shift gear under track conditions!

Post by Biancorally » Fri Sep 13, 2013 6:41 pm

Hi Ove,
is that a stock Strada 130TC ZF synchronized gearbox?

Is it hard to get out from the 2nd gear?

Regards

Daniel
GC_17

torkil
Posts: 63
Joined: Thu Dec 30, 2010 3:10 pm
Contact:

Re: Hi, difficult to shift gear under track conditions!

Post by torkil » Sun Sep 15, 2013 6:18 pm

Yes standard synchronized box , 2nd to 3rd somtimes 3 to 4 also . , It heawy to shift ,have to dag the lever slowly over , .


Here you can see for your self http://www.youtube.com/watch?v=PNAvQeVckGc
GC_41

Biancorally
Posts: 52
Joined: Sat Jul 09, 2011 2:30 pm
Contact:

Re: Hi, difficult to shift gear under track conditions!

Post by Biancorally » Sun Sep 15, 2013 9:36 pm

Hi,
can you post a picture with the linkage up to the gearbox?

Regards

Daniel
GC_17

Urbancamo
Posts: 318
Joined: Mon Aug 08, 2011 1:04 pm
Location: Finland
Contact:

Re: Hi, difficult to shift gear under track conditions!

Post by Urbancamo » Mon Sep 16, 2013 8:58 am

For me it looks like some kind of a gearshifter/linkage issue rather than anything else, but hard to say just looking at the video.
GC_25

torkil
Posts: 63
Joined: Thu Dec 30, 2010 3:10 pm
Contact:

Re: Hi, difficult to shift gear under track conditions!

Post by torkil » Wed Sep 18, 2013 5:58 pm

There is no linkages in this system at all this is fitted just like a frontwheel driven car F instance Uno Turbo , But this package is fittet at rear , so there is only the original X1/9 rod who travels to the rear end off the car an under gearbox bolted diretly to the gear gearchange rod without any rubber , Wery accurate shift , whenn not getting hard to shift ,
Motor monts are wery stable and dont flex mutch, OVE
GC_41

timinator
Posts: 116
Joined: Wed Mar 09, 2011 5:20 pm

Re: Hi, difficult to shift gear under track conditions!

Post by timinator » Tue Sep 24, 2013 12:44 pm

Hi Ove, I have had this problem with transmissions that were not serviced often. The cure is to drain out the gear oil and refill with ATF and run it for approx. 1500 km to clean out the sludge. Then refill with what is called for by the manufacture.

Abarthnorway - Remi L
Posts: 208
Joined: Sat Jun 24, 2006 1:39 pm
Location: Oslo, Norway
Contact:

Re: Hi, difficult to shift gear under track conditions!

Post by Abarthnorway - Remi L » Fri Oct 11, 2013 10:04 pm

timinator wrote:Hi Ove, I have had this problem with transmissions that were not serviced often. The cure is to drain out the gear oil and refill with ATF and run it for approx. 1500 km to clean out the sludge. Then refill with what is called for by the manufacture.
hmmm - I am not sure this is the problem in this case. The 130 TC box has some "delay" and sensitivity regarding the 2nd gear I have noticed, although not the way Ove is describing. I certainly do not expect old oil to be the problem in this case.
GC_45

Post Reply

Who is online

Users browsing this forum: Bing [Bot] and 1 guest