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Cold Start Issue

Posted: Fri Jan 28, 2022 1:13 am
by JOH
Hi all,

My injected Scala is taking two or three turns of the ignition to get it started from cold. Seems like fuel is not getting through on first / second turn then fires up fine.
I've heard talk of 5th injector being the culprit although are replacements available? Any suggestions?
Thanks!

Re: Cold Start Issue

Posted: Fri Jan 28, 2022 1:40 pm
by chopperoli
no need to post the same thing 3 times

I'd recommend you to get a fuel pressure tester. you should check the operation of the cold start injector and thermo time switch. lots online about this stuff

this might be useful too:
Image

Re: Cold Start Issue

Posted: Fri Jan 28, 2022 6:29 pm
by mark1gls
Might be a good idea to test the 5th injector before buying a new one as could be various things.

Remove the 5th injector and place it in a jar, start up the engine and see if any fuel comes out.

The 5th injector is controlled by a thermo switch on the main coolant outlet on the the front of the head, there is a guide to testing the thermo time switch in the Haynes manual.

Re: Cold Start Issue

Posted: Fri Jan 28, 2022 10:30 pm
by DannyH
stab the accelerator a few times?

worked for me for many years!

Re: Cold Start Issue

Posted: Fri Jan 28, 2022 10:53 pm
by RussGLAuto
:swoon:

Re: Cold Start Issue

Posted: Sat Jan 29, 2022 1:23 am
by DannyH
It was my daily driver, not a toy.

I needed a practical solution and it worked, I'm not a purist!

Was fine for 12 years and I'd tried all the rest? 🤔👍

Re: Cold Start Issue

Posted: Sat Jan 29, 2022 9:15 am
by Village Idiots
Good un, Danny.
A pragmatic Northern solution!
Hope you're keeping well.

Re: Cold Start Issue

Posted: Sat Jan 29, 2022 1:19 pm
by JOH
Thanks all