Iain T

If the clutch was slipping you would notice it when pulling off from stationary. Where in the pedal stroke is the clutch biting? A bit brutal but drive along and gently apply the brake and accelerator at the same time. If the revs rise when decelerating then the clutch is slipping. Another edit, shouldn't your idle be around 6-700rpm?

Leave a 1 to 2mm gap between the head of the screw and the cam.

Well spotted!

The screw will adjust the idle revs. Unlock the nut and unscrew to lower revs. I have no experience with 13/60 but I think the throttle guide should not be able to move as in your video.

Can you hear any air being sucked in? Failing that it may be time to take the carb off and clean check the flanges, isolator and gaskets.

It does look down. As a belt and braces check undo the four cap screws a couple of turns then see if the piston drops with a clunk. I had a air coming in at the manifold/carb isolator. I wondered why I couldn't tune it then heard the sucking noise!

If there is a gap then the jet needs centering.

Possibly not down. When the piston is down is there a gap at the bottom between it and the bridge of the carb body?

One down, now try the piston lift check.

From your photo just pull the diaphragm/air piston assembly up from the carb body. At the bottom of the piston are two holes which must face toward the engine/manifold PS I've PM you with my mobile number.

After checking the air piston orientation screw the top back on then with the air filter off (and the damper plunger out) stick your finger in the carb and raise the air piston to the top then let it drop. Does it drop all the way with a mechanical clunk at the bottom. If it doesn't the jet needs centering to the needle. Note: when screwing the carb top on take great care to evenly turn each screw and check alignment by raising the air piston and letting it drop with a clunk. Iain

As Pete said what about the air piston are the holes at the bottom pointing toward the engine?

Can you post a picture of your carb/throttle arrangement. If there was a butterfly screw missing it would have high idle all the time, see Jeffds1360 post. It sounds as though something is moving after running the car then possibly settling down and returning when not in use. Odd, wierd but it must be something simple. Iain

Look forward to seeing there, I've booked a 9.30 arrival slot. Iain

I've booked 19th June at Peter Best event Braxted and 26th at The Lawn Rochford. The first is free the second only £4. Be nice to see any club members. I haven't been to the Braxted show before but The Lawn had a live band and lots of things for the family. All very weather dependant! Iain

Clive, good point I could use a T piece to connect the rocker and 'pump' breather hoses into the catch can then out to the pcv. Easy to try, I'll need to make the outlet and reposition the Huco. Iain

Now I'm jealous! You must tell us how they perform. As to manifold I assume the straight as possible. What do you have fitted on your car?

It is higher but only by a few inches. I could use the old petrol pump hole but then with only a two port can the rocker vent/pcv hoses would have to stay as original. Is there any advantage in doing so?

Yes although it does depend on the choke cam profile and how far in or out the cam screw is with the CDS carb.

If you're going to buy triple Webers why not go the next step with Jenvey Heritage (Weber lookalike) throttle bodies. Yes overall more expensive with ecu etc but if you're inclined to put your hand deep in your pocket then in my opinion that's the way to would go and keep a classic look.

I made cardboard sections and interlocked them to make a dummy fan. Have fun!

Sounds like the speedo needs a service? My original temperature gauge read high but when checked with a temp gun it was fine.

Not on a Vitesse, I had to get EP Services to mod my water pump to fit it! However some have fitted without this mod?!?! Dunno why I have less room. I used the Spall fan bracket 69A-075-AA0 with home made brackets to fit.

It's a Spal VA10-AP50/C-61A 12" pull fan from T7 Designs. Very good and pulls the temperature down 10C in no time, at all.

I have a catch can mounted next to the clutch master cylinder and plumbed from the rocker into the pvc. I took the can off for the first time yesterday and it had about 10mm of oily water in it and some white gloop in the bottom. I mounted the can as high as I could but with only short journeys it's probably not getting hot enough.