displaying posts 1 to 8 of 8

Author Subject: VTS rack
pugheaven

Seasoned Pro

Location: Fareham

Registered: 17 Dec 2006

Posts: 4,602

Status: Offline

Post #1
Just wondering what part makes the rack a "quick" rack?

If I was to change the part below that was removed from a 6 rack and fitted it to a vts rack would it turn the quick rack back to the same ratio as a 6 rack or would it still be a quick rack?

Posted 20th Oct 2013 at 11:30
Rich E Forum Admin

Location: Hertfordshire

Registered: 27 Apr 2005

Posts: 7,757

Status: Offline

Post #2
Racks and pinions come as matched gear pairs. If you tried fitting a different pinion gear it would probably just lock up and not move at all. The teeth would not align.

________________________________________

Rich
Posted 20th Oct 2013 at 11:55
pugheaven

Seasoned Pro

Location: Fareham

Registered: 17 Dec 2006

Posts: 4,602

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Post #3
Yep iv just took the vts one apart and found that they are completely different size rack and pinions... Great....
The thread for the low pressure pipe has been cross threaded, I guess that's the first thing I should have checked before changing the rods over!

The previous owner wouldn't have known as im assuming he received the rack with the pipes already removed Sad
Im going to try and tidy the threads up but its not looking likely Sad
Posted 20th Oct 2013 at 12:03
superchargedblack1997gti6

Seasoned Pro

Location: guildford

Registered: 15 Aug 2009

Posts: 2,376

Status: Offline

Post #4
Ollie I can get this machined out and an insert put in and tapped if you need?
Unfortunately I never got this one fitted.

________________________________________

Super high boost Completed, destroyer of gearboxes and 160mph club
Posted 20th Oct 2013 at 12:13
phillipm

Seasoned Pro

Location: Rotherham

Registered: 15 Oct 2006

Posts: 20,607

Status: Offline

Post #5
What Rich said, the rack and pinion are matched, the pair together are what makes it a quick rack, putting that pinion on a standard rack will just lock it solid.

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Posted 23rd Oct 2013 at 12:28
c_j_m

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Location: Andover

Registered: 23 Sep 2007

Posts: 1,917

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Post #6
http://306oc.co.uk/forum/thread-18204.html

This shoud be of some use. Shows you how to disassemble that part of the rack and you could change over the damaged housing?
Posted 23rd Oct 2013 at 14:19
pugheaven

Seasoned Pro

Location: Fareham

Registered: 17 Dec 2006

Posts: 4,602

Status: Offline

Post #7
Iv already done that but the housing is machined out a lot larger to accept the larger pinion
Posted 23rd Oct 2013 at 18:35
c_j_m

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Location: Andover

Registered: 23 Sep 2007

Posts: 1,917

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Post #8
Ah worth a shout though.
Posted 23rd Oct 2013 at 19:31

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