Jump to content
Gerry Ahern

Rough idle

Recommended Posts

Was it idling rough, before you replaced things?

 

Remember to keep it as original as possible.

 

All those little things - original Carby, Autolite/Motorcraft Spark Plug leads, alternator - have date codes on them, to match to the build date of the car.

Those date codes, will help you tell if things have been replaced in the past.

 

If the original bits are still fitted, (wherever possible) I would rebuild/repair them, rather than replace.

Share this post


Link to post
Share on other sites

You'd probably hear the hissing, if there was a major vacuum leak.

They're such simple engines, not much to go wrong.

 

Check the vacuum advance diaphragm on the dissy.

That can be perished, causing a vacuum leak.

 

 

Can you post up a pic of the engine bay?

Share this post


Link to post
Share on other sites

An update. Rough idle is not too bad. A mechanic had a look and thought it was just old (mind you, he didn't know how to do timing....). But he was clever enough to spot carby base gasket leak - improved it a bit. Anyway, will leave that for later. While waiting for panel beater, have replaced fuel tank and got rid of all lpg crap. See pics boot, engine. While waiting, started fiddling with some other bits. Cleaned up wheels. I tend to get frustrated at minor things - Temp gauge is reading too cool - gauge works great when earthed so replaced sender - doesn't work at all then (resistance of replacement - supposedly correct model - sender too high) so just put old one back in. Also, the gap between dash pad and lower bit worries me - why has it opened up so far? (don't want to replace pad and gap still there). And idle annoys me - perhaps i am too fussy. Any comments very welcome about problems. One good thing - radio works a treat.

 

http://i1300.photobucket.com/albums/ag97/Gerry_Ahern/IMAG0021_zpsd4md9nch.jpg

http://i1300.photobucket.com/albums/ag97/Gerry_Ahern/IMAG0024_zpsfdymtzho.jpg

http://i1300.photobucket.com/albums/ag97/Gerry_Ahern/IMAG0023_zpsaxsd1tzr.jpg

http://i1300.photobucket.com/albums/ag97/Gerry_Ahern/IMAG0025_zpseks4w1se.jpg

 

Share this post


Link to post
Share on other sites

As long as the radio works all is good.... LOL

 

You have got to remember the old girls never idle as smooth as modern cars.....

You can get them pretty close tho with a bit of effort (and luck).....

 

I can understand the little things getting at you....

My ZL has a few of those..... Fixed one today :) so 1 down lots to go.....

Share this post


Link to post
Share on other sites

My ZL is the same... checked plugs and regapped, leads tested ok, etc etc

even changed the AFM (EFI 4.1) and still its not quite where I would like it to be.....

But it runs well, doesn't stall and generally goes pretty hard for what it is....

 

My BA I just take for granted its running at the lights.... so smooth at idle....

Funny thing tho I just love driving the Lane....

Share this post


Link to post
Share on other sites

Yeh, haven't done much except rip out the interior for the panel beater. He's picking it up soon to repair rust and paint. So can't really do much. When it gets back will send pics. Thanks for asking.

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

×