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Snapped accelerator cable on 96 manual 993

Hi,

just looked at the manual too, I think "C" is a cross section of the rubber grommet that is inserted into the engine tin to stop the cable chafing. I had this but no other clips etc. The parts manual shows nothing too. I don't think there are any other parts to be honest.

Regards
GR
 
Thanks GR

You have been an excellent source of info regarding this issue.

Think the way forward is to get both cars side - by - side and jacked up at the rear end and then do a direct comparison between the cable routings.

We know that my brother's is connected to the cruise control point on the throttle assembly - so it stands to reason that once this is corrected to the correct (higher) throttle connection then he will have the full range of movement (0 - 84 degrees) - and we can obviously confirm this with the durametric software.

I will then set my cable up in exactly the same manner (routing, etc...) and in this way we should be able to achieve the same range of motion.

Also going to double check the part number on my new throttle cable as it is indeed stamped on the body of the old one.

Think some pictures with the digital camera might be in order in case anyone else ever has this issue again!

Lets hope the weather stays nice for the weekend - early start Saturday AM methinks!![8D]

Have a good week.

 
I know mention has been made of this before but are you absolutely sure the position of the cable is in the most central outer guide hole (the one you fit the rubber grommet to) and the higher inner cable hole on the throttle body lever.As as i'm sure you know a car with cruise control must have two cables attached to the valve assy and this requires sepearate inner and outer cable holes/guides.I cant tell you how often ive seen a 993 which has had the engine wireing loom recall carried out at a dealer, only to find out later that they put the throttle cable back incorrectly on reassembley .It's about the only time it ever needs to be touched ,that and fitting some new ht leads.
As has been said to reattach is a bit akward and requires dexterity/patience!! and is best acomplished before you tighten the manifold down on the inlet rubber stacks.
regards C
 
Hi

My brothers 993 has definitely been incorrectly fitted back into the cruise control section of the throttle assembly - so this needs moving up to the correct position.

I'm pretty certain that mine is fitted to the correct part of the throttle assembly (manual clip section) as you can visually see it from above the inlet manifold (which is not possible if it is fitted to the cruise control section)

Not sure if I've got the metal retainer for the rubber grommet section the correct way up on the lower part of the throttle housing though - as I took the two bolts out to aid fitting the grommet; entirely possible that I fitted upside down which may have changed the effective length of the outer sheath.

Plus there is still some question over the correct routing once the throttle cable comes out the tube from the drivers footwell and runs underneath the car. Currently it is hooked up over the transmission linkage - but this seems strange as this is a moving part and although the old cable was fitted in this manner there is some quite clear chafing on the sheathing due to this.

I think whatever happens now we are going to have two 993's up on axle stands, inlet manifolds out and lower panelling removed to check cable routing etc...

Definitely not going to do the full refit either until confirmed 84 degrees of throttle movement using the accelerator pedal!!

Thanks ever so much to all those who have posted - it is all helpful believe me!!
 
Hi All

Well what can I say...apart from it is like a Rocket ship now!![:D]

Took the entire inlet tract out - disconnected the throttle at the pedal position and withdrew the cable assembly from the tunnel. Changed the routing slightly so it is now not in contact with the transmission tube at all (hooks above the U-bracket that sits above the transmission tube)

Found that the rubber grommet retaining clip was on the wrong way up on the throttle body - so removed and turned it the right way up (which meant that the grommet now sits lower and to the rear of the throttle body more).

I then put the inlet tract back in, connected the throttle position sensor and ran the durametric software. Adjusted the throttle cable at the pedal and set-up to acheive exactly 84 degrees of throttle movement.

Put it all back together - ran a quick diagnostic check after clearing any faults where things had been disconnected. No faults displayed - double-checked throttle angle (still all good at 84 degrees [;)])

Well had to go for a test drive of course - and it is like a different car...it was simply amazing. The whole sound of the car has changed and when the Varioram kicks in at 5200 rpm the note change is awesome - like a wailing banshee!!

I have not grinned so hard for a long time...even let my brother have a go (he hasn't sorted his throttle out yet [;)]) and he could not believe it. Took them both out for a comparison and the difference is unbelievable...no prized for guessing what he's going to be doing next week!!

Did take some pics along the way with the mobile phone camera until it ran out of charge - so will try and post those on here soon. Got some good pics of the throttle body and grommet mounting, as well as the engine bay with the tract removed showing the two throttle cable routing holes.

Anyway - thanks to all those who posted pics and advise - very much appreciated!! [:)]
 
Very pleased you finally managed to get it sorted, interesting reading for us, but a pain for you. Enjoy it!
 
Excellent news well done!

Makes me wonder how many of us are running around without getting full throttle though [&:]
 
If your engine has been out it is a distinct possiblity - wouldn't have known without the Durametric software...marvellous investment!! [:D]

Once again thanks to all those who posted advise/photos/etc...

Hope this maybe helps someone else in future!!
 
Glad you got it sorted. Makes the pain of having the issue almost worth it when you have the pleasure of sorting out yourself. Well done.

Regards
GR
 
Hi

Not sure if this will come out ok - but I have taken a pic of the grommet mounting for the throttle body shown the wrong way up - this was why the throttle could only acheive 44 degrees of movement.





6E3DA30737FD40E0A1D8861DC4FCE1B1.jpg
 
and here is a pic of the throttle body grommet mounting shown the correct way up - which will enable you to get 84 degrees of throttle opening.

D2EE4ACB340E482FB1045D0406A071F2.jpg
 
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