Jump to content

2.5 Petrol Engine


Recommended Posts

What do the two solenoids do on the side of the Weber twin-choke carb actually do?

Do they both need an ignition-switched power supply so that they are energised when the engine is running?

They stop the potential for the engine running on and also flooding after switch off by blocking the fuel supply.

Yes, they are linked together by a common wire directly to the positive (ignition controlled) terminal on the ignition coil.

Regards,

Diff

Link to comment
Share on other sites

yes they do.

On mine both wires are joined together and go stright to the coil.

darryl

Thanks everyone! I had wired them up like that, but it doesn't idle properly on petrol - it 'hunts' at a fast idling speed. I took them both out and cleaned them - both were slightly gunky.

The one by the carb vacuum port now works happily with a click, but the one by the fuel inlet doesn't. It's as if the spring isn't returning it.

I have downloaded a Def manual, but the exploded diagram shows a carb with only one solenoid - I assume this was the earlier type, does anyone know the part number for the later type please?

Link to comment
Share on other sites

wiring diagram in my [1993 edition] Defender manual shows 2 carb solenoids, both connected to the coil & earth. my earlier manual only shows 1 solenoid [fuel cut-off] fitted to the Weber 32/34dmtl twin choke carb.

hth :D

Found a little rubber washer thing that had fallen into the float chamber when I pulled the sliding bit of the solenoid out! Put it back together properly and it also clicks happily now, so I just need to test it - unfortunately I ran out of time before I had to set off for work.

Link to comment
Share on other sites

that sounds like a successful fix to me, well done :D

I tried it this morning and it's so much better. I still need to warm it up then sort out the mixture and idling speed but at least it starts and runs on petrol!

Thanks everyone. I'm getting there slowly - hopefully have a test drive this weekend!

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

 Share

×
×
  • Create New...

Important Information

We use cookies to ensure you get the best experience. By using our website you agree to our Cookie Policy