mdc124
|
| posted on 17/8/03 at 06:58 PM |
|
|
Blade Gearbox (Problem?)
Hi,
Does anyone have a 92/93 blade engine in thier car? I do and I'm having problems:
I use an electronic gear shifter (see here as to why) and I am having problems downshifting.
There (sometimes) seems to be no 'slack' in the gearbox coming down the gears -changing hear by hand needs a firm press and down it
goes.
Does anyone know of a problem with these 'boxes - better still does anyone know of a fix?
The problem seems to have come on recently and it seems to be worse at town speeds rather than when being thrashed
Thanks
Matthew
Http://www.farend.co.uk/
The first MK Turnkey Indy
|
|
|
|
|
ChrisGamlin
|
| posted on 18/8/03 at 09:05 AM |
|
|
Hi Matthew
Could it simply be that your linkage etc needs adjusting? If not, the usual thing that goes on blade boxes is the gear selector forks and/or the
selector drum. the forks can bend if they have a hard life, so making gear changes less than perfect. The selector drum has a channel cut into it that
controls the selection, and this can get damaged. Either way, its a case of splitting the bottom end of the engine and replacing the damaged parts,
not an easy/cheap job, so it might be worth keeping an eye out for a 2nd hand box if that is the problem.
I know I probably sound like a scratched record  , but also ask on the Yahoo BEC list as there is loads of people on there with blade experience who
could advise further.
Chris
[Edited on 18/8/03 by ChrisGamlin]
|
|
|
loafersmate
|
| posted on 18/8/03 at 03:41 PM |
|
|
Not really an answer to your question but my 94' box sometimes likes to come un-dogged (if that's a word?) and you can hear the tangs
wizzing past each other.........not nice. It is usually the result of a lazy gearchange by the operator and the solution is to quickly pull it in to
gear, putting your foot on the clutch has no effect!
Ben
|
|
|
coozer
|
| posted on 18/8/03 at 07:25 PM |
|
|
It could be the oil is getting too hot. I remember an old Kawaski 1000 that did the same when the oil level was low(it used around 1 litre ever 2/300
miles!)
I fitted an oil cooler then and kept the oil level up which seemed to work even after a week of thrashing it around the Isle of Man
Steve
|
|
|
Wadders
|
| posted on 18/8/03 at 09:26 PM |
|
|
Talking of oil, have you changed it recently? If the clutch has been given a hard time ( i remember your post about practicing donuts!) bits of clutch
plate may have contaminated the oil, which wont help gearchanges.
|
|
|
mdc124
|
| posted on 21/8/03 at 12:09 PM |
|
|
Thanks guys - it'll be a while before i get to look at it now. (just had metalwork removed from my leg  )
Talking of oil - i topped it up as a precaution as soon as this started happening and it might have made a slight difference.
Whats the consensus of overfilling when the engine is in a car? My engine has a dipstick rather than a sightglass - does the orientation change when
mounted in a car??
I'll make sure its reading 'max' before i take it out next (few weeks yet)
Any more thoughts appreciated!
Cheers Matthew
P.S. I was practicing donuts - not practicing destroying my car I still have too much respect for the car when driving onehanded - read
"powerturns" for donuts anyway 
Cheers
[Edited on 21/8/03 by mdc124]
Http://www.farend.co.uk/
The first MK Turnkey Indy
|
|
|
