Car jumpy when taking off 1st gear

[califkid_66]

I have noticed recently that sometimes when I take off in first gear the rear wheels are a bit jumpy once I’m rolling everything is fine all other gears are ok I f anyone as experienced this what could be wrong clutch works nicely my engine support seem ok so does the transmission support I’m thinking maybe the trailing arm bushings would really like to figure out what’s wrong before tearing everything apart thanks!!

[Arizona]

The likely cause is the clutch cable is anchored to the frame. Moving the anchor point to the engine will solve the problem.

[jbcollier]

By “jumpy”, do you mean “ jerky”?

[Arizona]

Here's a link to a previous discussion that may be helpful.


https://www.lotuseuropa.org/LotusForum/index.php?topic=4579.msg49693#msg49693

[califkid_66]

I tried giving more gas and slowly release the clutch it was ok but if I’m at a street corner at idle and let go the gas without Reving it before the rear wheel sorta jumps instead of rolling smoothly my friend says it might be my  carb cause if I rev it before and let go the clutch it’s ok  but I don’t want to rev my engine every stop

[Arizona]

I tried giving more gas and slowly release the clutch it was ok

Well that actually fits the frame anchor scenario. A quick peek in the engine compartment should tell you if that's the problem.

[califkid_66]

ok thanks ill take a look thanks again

[4129R]

If the clutch cable outer retaining bracket is welded to the chassis, this causes clutch judder.

Most Ford block cars have a bracket bolted to the block by the exhaust manifold/header where it starts bending under the sump. It is bolted to the block, just above the sump, with 2 x 3/8"UNC bolts.

[califkid_66]

I have an s2 federal with Renault engine as soon as I get a chance I’ll follow the clutch wire

[Bryan Boyle]

I have an s2 federal with Renault engine as soon as I get a chance I’ll follow the clutch wire

Your clutch cable sheath terminates on the right hand side engine mount.  The TC is a bit different.

red arrow points to where clutch cable terminates.  (not sure, due to fading brain cells, the orientation...but it's blindingly obvious in the car.)

[Bryan Boyle]

ok thanks ill take a look thanks again

if it looks like the first photo...it's welded to the frame (excuse the oil spooge...yeah, 3291R has a well-preserved rear frame...); the second is a photo of the replacement mount which gets bolted to the engine block in the two holes that are there for the (unused) generator mount.

To put it on, you WILL have to disconnect both universals in the engine room to move the tubes out of the way of the front bolt hole.  How I'm planning on doing it:

1. Remove cable from throwout arm (after measuring how much cable should be threaded to the nuts)
2. Disconnect rear and middle universals and disconnect shift mechanism
3. Remove cable from the frame mount and push cable out of the way.
4. Using an angle grinder (with fire extinguisher at the ready), cut off the offending mount.
5. Run tap into block to clean up threads and mount new mount.
6. Install clutch cable into new mount and reconnect to throwout arm
7. Reinstall shift mechanism and check operation.

Of course...subject to reality of being bent over the boot end of the car...

[Bryan Boyle]

*** DELETIA ***

Done.  Installed.  Clutch cable not hooked up...next up...drain oil, remove starter, intermediate shift pivot bracket, bell housing closure plate, drop oil pan and reseal. 

Oh, and hook clutch back up and reattach shift mechanism after I get the oil pan back up. 

UPDATE: see other thread for continuation of the 'oil pan and lubes discussion'

[jbcollier]

Maybe start a new thread?

[Bryan Boyle]

Maybe start a new thread?

done

[califkid_66]

Back to the original thread !!!
Ok the Europa still jerks but one of the problem was my idle was not regular would go 1000 then went to around 450 so I had to rev up before releasing the clutch I checked the carb and cleaned up my primary idle jet and the idle is much more stable but the jerking continues not often but enough to annoy I went under to see how it was setup
You can see in the pictures
I’m starting to think it suspension related