help 617a + alto gearbox

5 replies [Last post]
cox.adrian
cox.adrian's picture
Offline
Joined: 23.05.2010
Location: HAILSHAM E SUSSEX
GWOA Groups: Members

 The 617a   diesel pump     has no vacuum control valve, so I can not get 4th gear.
 It feels like clutch slip but its a automatic. 
 Is there a way to mount the vacuum control valve from the 617 pump
 onto the 617a diesel pump? 

Thanks, Adrian  

Pistonhead
Pistonhead's picture
Offline
Joined: 17.12.2006
Location: Loughborough
GWOA Groups: Committee, Members
Re: help 617a + alto gearbox

Hello cox.adrian,

Any chance of photos of both the pumps?

cox.adrian
cox.adrian's picture
Offline
Joined: 23.05.2010
Location: HAILSHAM E SUSSEX
GWOA Groups: Members
Re: help 617a + alto gearbox

 hi sorry no pics  the 617 diesel pump is small and has a vacuum pump bolted on the side (red top)
   the 617a is big diesel pump and has,nt got a vacuum pump just a shaft pokeing out the side
    thanks adrian

fixwin38
fixwin38's picture
Offline
Joined: 09.07.2006
Location: northern ireland
GWOA Groups: Members
Re: help 617a + alto gearbox

Hi A|drian
your gearbox operates viia the throttle linkage vacuum block mounted on the top of the rocker cover and this unit is linked to the same vacuum plumbing as the brake servo it has nothing to do with the fuel pump which has a vacuum operated  stop mechanism

cox.adrian
cox.adrian's picture
Offline
Joined: 23.05.2010
Location: HAILSHAM E SUSSEX
GWOA Groups: Members
Re: help 617a + alto gearbox

hi after a visit to a altomatic specialist the pump on the 617a (RW375/2200 MW 28-1)
will need a vacuum pressure control for the gear change we are going to try to fit the 1 of the 617 pump
has any 1 done this? thanks adrian

cox.adrian
cox.adrian's picture
Offline
Joined: 23.05.2010
Location: HAILSHAM E SUSSEX
GWOA Groups: Members
Re: help 617a + alto gearbox

  as you can see i dont have part 65 that goes on to the rusty shaft
  my problem is no kick down and the gear change 3 / 4 i have to do manually
            thanks adrian