727 Staying in second

John · Post by **John** » Sun Jan 06, 13 4:07 pm

Gearbox changed fine until I have just changed inlet manifolds. Originally cast dual plane = fine, Ally single plane = fine. Ally dual plane now fitted and the car changes fine from 1st to second but then seems to like to hang around in second far longer now. If you gun it, it will change up no probs and if you give the accelerator a squize and then back off it will also change up but as soon as you slow down just a tad it cant wait to get back in to 2nd again

Any clues

Pete · Post by **Pete** » Sun Jan 06, 13 4:08 pm

Kickdown rod adjustment?

John · Post by **John** » Sun Jan 06, 13 4:10 pm

Blimey your a bit sharp today Pete

So where do I find this offending article and what do I have to look out for

John · Post by **John** » Sun Jan 06, 13 5:25 pm

Pete wrote:Kickdown rod adjustment?

Ok so I have an after market adjuster that I have now slackened off. Will see if thats done the job next time Im out in it. Would make sense though as the manifolds have been getting progressively taller

Demon James · Post by **Demon James** » Sun Jan 06, 13 5:40 pm

I had the same issue when I replaced my cast iron manifold with an Edelbrock RPM AirGap one. The adjustment was very easy (cos even I managed it

). There is a propper guide to this on a thread I started when I asked if the spring set up was correct but I'm not sure how to put the link up

In the mean time, see if my version and photos help, just note that these are photos before I set the springs up correctly so dont put the springs where these are

First I dissconected the rods at point A and C. Then swing the lever bracket up or down so you can insert a snug fitting drill bit through the holes at point B, there are two in the moving part and then through to the fixed one on the bracket behind.

Then my glamorous assistant got under the car to push the kick down lever forward on the side of the transmission box, this raised rod C but I still had to unscrew it on the adjustment to reach the new location, the factory piont needs a little down pressure to on rod C to be correct apparently but I had played about with mine to find the change point I like. Then clip rod C back on.

Then I had to adjust rod D so that it would line up with pivot point A and sit snug at the back of the slot (point E) without putting any pressure on the throttle lever of the carb. Since learning this I have made a few adjusments using rod D to find the best gear change point (mainly round the pits at Santa Pod when it was quiet

)

Hope this helps, I learnt this from the guys on here so someone may be able to put a link up to the pages I used from the workshop manual, which I promptly went out and bought

DaveBishop · Post by **DaveBishop** » Sun Jan 06, 13 5:52 pm

John here how to adjust the kickdown

AllKiller · Post by **AllKiller** » Sun Jan 06, 13 5:57 pm

Ring you in a minute John

Demon James · Post by **Demon James** » Sun Jan 06, 13 5:59 pm

Thats the ticket Dave

Dont think I'd get a job writing workshop manuals eh?

John · Post by **John** » Sun Jan 06, 13 6:34 pm

Thanks chaps,

This is my set up so slightly different but all adjusted now