Rallyrep in action - Page 12

Audi Derek · 20-03-11, 09:07 PM

Best of luck with the new season Tim.

Can you thank every one for the pics/vids from Sunseekers for us, much appreciated.

..

Tim C · 20-03-11, 09:25 PM

Quote:

Originally Posted by Audi Derek

Best of luck with the new season Tim.

Can you thank every one for the pics/vids from Sunseekers for us, much appreciated.

..

Will do Derek, thanks.

Tim C · 28-03-11, 01:43 PM

Castle Combe

.

The morning practice session went well, in fact the car was pulling much stronger and longer through all the gears. At the end of the main straight it used to start running out of puff and only made about 5000rpm. This time we were seeing over 5500rpm and it was still pulling

. That equats to "quite fast" in top gear, especially with the higher gearing of the 235/50 tyres

.

At the start of my first timed run the gear linkage popped off leaving me with only 3rd and 4th. The little adjustable double ended link had parted company from the ball

.
It was OK for Andy's first timed run but he caught another car and lined up for re-run. This time the linkage popped off the actuator ball leaving him with 1st and 2nd. It took him quite a while to do a lap in second gear

.

Investigations found that we had lost one of the two bolts from the front engine snub. It's now a straight bar off the side of the block into a cup on the front aluminium cross bar (a la works style). The engine must have rocked backwards on it's new stiff engine mounts with the give in the standard gearbox mounts and hence the gear linkage popped off

So, a rethink on the front snub mounting, some new stiff gearbox mounts, and new plastic bits for the gear linkage. The gear linkage problem was caused by the other issues but it is a bit tired and comes apart a little too easy.
We have looked at doing the rear gearbox mount like the works cars. It's a sort of rubber mounted collar that bolts to the very rear of the gearbox where the prop shaft comes out. It then bolts directly to the tunnel. Maybe one day!

At least it's not another engine rebuild like this time last year

.

Tim C · 09-04-11, 05:32 PM

Found that, as a consequence of loosing the front snub, the engine mounts ripped themselves apart

.

These were the new stiff 034 motorsport ones. I suppose doing sprint starts without a front engine mount to hold it down is a bit extreme, but I wouldn't have expected them to part after one go.
The ones we took off were the originals AFAIK. They were a bit tired and floppy but at least they held on to the engine.

Nicky C · 09-04-11, 05:36 PM

Not many pics from Castle Combe as it was an early finish

.

Rally43 · 09-04-11, 05:52 PM

Quote:

Originally Posted by Tim C

Found that, as a consequence of loosing the front snub, the engine mounts ripped themselves apart

.

These were the new stiff 034 motorsport ones. I suppose doing sprint starts without a front engine mount to hold it down is a bit extreme, but I wouldn't have expected them to part after one go.
The ones we took off were the originals AFAIK. They were a bit tired and floppy but at least they held on to the engine.

Tim,

Not to hi-jack the thread, but what snubber did you build and what did you attach it to ? Im just starting my Rally bars and snubber mount... The one that was on mine just limited upward movement, but I see on the rally cars and other they supported the snubber 360 degrees...

Tim M

Tim C · 09-04-11, 07:00 PM

Hi Tim,

We went along the lines of the works cars with a cylindrical cup attached to the spotlight bar.
It really ties the front of the engine down but I think it takes a lot of stress.
Here's a picture I took of the empty engine bay of Suttons group 4 shell to give you some guidance

.

Rally43 · 09-04-11, 07:40 PM

Quote:

Originally Posted by Tim C

Hi Tim,

We went along the lines of the works cars with a cylindrical cup attached to the spotlight bar.
It really ties the front of the engine down but I think it takes a lot of stress.
Here's a picture I took of the empty engine bay of Suttons group 4 shell to give you some guidance

.

I will probably do the same... I had some photos from Marc, but yours shows the cup much better.. I just ordered a pipe bender...

moonwatcher · 09-04-11, 07:50 PM

Good luck

Willbo · 09-04-11, 07:55 PM

I've just gone right through this thread.

FANTASTIC please keep it going.

20-03-11, 09:07 PM	#111
Audi Derek “Been raced and rallied” Classic Audi Club Member Join Date: May 2008 Location: Bridgwater Somerset Posts: 1,431	Best of luck with the new season Tim. Can you thank every one for the pics/vids from Sunseekers for us, much appreciated. .. __________________ Vorspurng durch Technik (see it does work)

28-03-11, 01:43 PM	#113
Tim C Senior Member Classic Audi Club Member Join Date: Aug 2009 Location: Poole, Dorset, England Posts: 1,729	Castle Combe . The morning practice session went well, in fact the car was pulling much stronger and longer through all the gears. At the end of the main straight it used to start running out of puff and only made about 5000rpm. This time we were seeing over 5500rpm and it was still pulling . That equats to "quite fast" in top gear, especially with the higher gearing of the 235/50 tyres . At the start of my first timed run the gear linkage popped off leaving me with only 3rd and 4th. The little adjustable double ended link had parted company from the ball . It was OK for Andy's first timed run but he caught another car and lined up for re-run. This time the linkage popped off the actuator ball leaving him with 1st and 2nd. It took him quite a while to do a lap in second gear . Investigations found that we had lost one of the two bolts from the front engine snub. It's now a straight bar off the side of the block into a cup on the front aluminium cross bar (a la works style). The engine must have rocked backwards on it's new stiff engine mounts with the give in the standard gearbox mounts and hence the gear linkage popped off So, a rethink on the front snub mounting, some new stiff gearbox mounts, and new plastic bits for the gear linkage. The gear linkage problem was caused by the other issues but it is a bit tired and comes apart a little too easy. We have looked at doing the rear gearbox mount like the works cars. It's a sort of rubber mounted collar that bolts to the very rear of the gearbox where the prop shaft comes out. It then bolts directly to the tunnel. Maybe one day! At least it's not another engine rebuild like this time last year . __________________ quattro RR - crystal silver quattro WR - 1981 Lombard RAC rally recreation (50% share) Nissan Navara - tow car / service vehicle for above A4 2.0T quattro s-line special edition - wife's http://www.flickr.com/photos/37654549@N06/sets/

09-04-11, 05:32 PM	#114
Tim C Senior Member Classic Audi Club Member Join Date: Aug 2009 Location: Poole, Dorset, England Posts: 1,729	Found that, as a consequence of loosing the front snub, the engine mounts ripped themselves apart . These were the new stiff 034 motorsport ones. I suppose doing sprint starts without a front engine mount to hold it down is a bit extreme, but I wouldn't have expected them to part after one go. The ones we took off were the originals AFAIK. They were a bit tired and floppy but at least they held on to the engine. __________________ quattro RR - crystal silver quattro WR - 1981 Lombard RAC rally recreation (50% share) Nissan Navara - tow car / service vehicle for above A4 2.0T quattro s-line special edition - wife's http://www.flickr.com/photos/37654549@N06/sets/

09-04-11, 07:50 PM	#119
moonwatcher 4 ring whore! Classic Audi Club Member Join Date: Jul 2008 Location: Barrow in Furness, Cumbria Posts: 2,049	Good luck __________________ Coupe Quattro 1985

09-04-11, 07:55 PM	#120
Willbo Mr 80 quattro! Classic Audi Club Member Join Date: Nov 2008 Location: Carlisle Posts: 1,279	I've just gone right through this thread. FANTASTIC please keep it going. __________________ VW Golf Tdi Porsche 924 Turbo (Brown) http://www.zolfe.com/Index.htm http://www.youtube.com/watch?v=vqzmc...eature=related

09-04-11, 05:36 PM	#115
Nicky C Grown up member Join Date: Mar 2010 Location: Poole, Dorset Posts: 102	Not many pics from Castle Combe as it was an early finish .