First Track Day
First Track Day
Author
Discussion

peternib

Original Poster:

98 posts

260 months

Tuesday 2nd May 2006
quotequote all
Well this was an experience!

Took my 4.2 down to the track for my first time, (first time in a Cerb not a TVR). So i had planned to take it slow and not spin off as per usual

The fun starts: On my cool down lap smoke started to pour into the cabin from the gear stick! yes the gear stick... then i pulled into the paddock and watched the smoke bale out of the bonnet
opened the bonnet to find that some oil had been blown out that breather pipe and was dripping out of the air intake onto the manifold? anyone else seen this? causes loads of smoke when it burns of the exhaust. So after i and a few other TVR members poked about for a while we decided it was ok to go out again

Second time out, no probs went well the whole time.

Third time out i took the RO of the club out, trying to impress him into getting a cerb from his current Chim

All went well for about five laps then the car blew smoke out the exhaust and the throttle got stuck on the floor! after completly SH*****G myself for a microsecond i stamped on the thottle which released it! (BTW for those of you who discuss limiters or NO limiters, There def is on mine)
Slowly drove back into the paddock and the car looks and sounds fine, very scary moments for a first time track in a cerbie.

Some of the more clever people around noticed that the breather was very badly kinked which should resolve that problem, but WHAT ABOUT THE THROTTLE, anyone been in this position has to know how bloody scary it is! image that in 2nd on a B class road?

Can just see me saying the famous "sorry sir they all do that" after creaming half the country.

Ideas and other experiences very welcome.

Thanks

Peter

>> Edited by peternib on Tuesday 2nd May 15:54

Extra 300 Driver

5,282 posts

275 months

Tuesday 2nd May 2006
quotequote all
The breather is a common fault, usually not put back on after a service or just coming off over time.

I would suspect the throttle cable has started to break. Get it sorted or it will catch you out on a B road.

budaholic

1,516 posts

264 months

Tuesday 2nd May 2006
quotequote all
My throttle got stuck fully open too, about a week after I collected it. Luckily I was on a fairly empty stretch of A road. The problem with mine was the pedal had simply got caught under the edge of the overmat. Needless to say, the drivers mat has taken up permanent residence in the boot.

Hope yours is as simple to sort.

Bud

BCA

8,651 posts

286 months

Tuesday 2nd May 2006
quotequote all
How common is the throttle sticking open thing?? Im getting paranoid

peternib

Original Poster:

98 posts

260 months

Tuesday 2nd May 2006
quotequote all
Bud,

Funny you ssaid that, i did pull the mat back when i got into the paddock area, but as i was a bit when it all was happening i dont actually know if this was the cause.

peternib

Original Poster:

98 posts

260 months

Tuesday 2nd May 2006
quotequote all
BCA said:
How common is the throttle sticking open thing?? Im getting paranoid


Not sure how common this is but i know if it happens me again its Neutral & RED button time! for sure, just be prepared for it is my advise,
But seriously, it cant be that common, and i dont care, the cars worth it

Extra 300 Driver

5,282 posts

275 months

Tuesday 2nd May 2006
quotequote all
peternib said:
if it happens me again its Neutral & RED button time! for sure,


But the other way around!

Red then neutral

Mrs BlueCerbera

2,208 posts

269 months

Tuesday 2nd May 2006
quotequote all
Chris had the 'throttle stuck open' problem in our cerb a few months back whilst coming down the A45 - was due to the way some new leads had been routed - ended up getting wedged under throttle cable. Not sure that's a very good description ... here's a photo which may explain it better



(those two black leads really shouldn't be where they are)

Certainly had his heart racing

i could have that description completely wrong, if so, just ignore me and carry on as you were ....

peternib

Original Poster:

98 posts

260 months

Tuesday 2nd May 2006
quotequote all

(those two black leads really shouldn't be where they are)

Certainly had his heart racing


Yes i can see why i consider my throttle being stuck open my cerbies birthdsy present to me! had my heart racing a bit too...

mikesr

672 posts

260 months

Tuesday 2nd May 2006
quotequote all
On the 4.2 if you replace the airbox mushroom head screws (near side at the back) with a cap head the ball link of the throttle arm could get stuck agaiinst the cap head. I replaced all the others with cap heads but have a mushroom head srcrew in that last one.

trackcar

6,453 posts

255 months

Tuesday 2nd May 2006
quotequote all
yeah, whoever routed your leads should be shot!

redleicester

6,869 posts

274 months

Wednesday 3rd May 2006
quotequote all
May be the cable routing, may be the cable on it's way out, but I'd also echo the comments from other posters - I had exactly the same experience coming into a tight corner on a country road, and likewise it was just the pedal getting jammed under the mat...

peternib

Original Poster:

98 posts

260 months

Wednesday 3rd May 2006
quotequote all
mikesr said:
On the 4.2 if you replace the airbox mushroom head screws (near side at the back) with a cap head the ball link of the throttle arm could get stuck agaiinst the cap head. I replaced all the others with cap heads but have a mushroom head srcrew in that last one.


Interesting Mike! i did check this last night and the last bolt was half open! when i checked the placement of the throttle in its fully open position it snagged on the bolt 80% sure this was it!

Thanks for all your inputs

Peter