fiesta misfiring

Honest John Back Room » Technical matters
View Threaded
Wed 17 Mar 2004 21:39
fiesta misfiring - jimmy464
I have a 94 fiesta 1.3i which is only running on 3 cylinders at tick-over it is the cylinder furthest from the thermostat. I did a compression test and this was lower than the others. so I took the head off. The exhaust valve seats look worn so I'll sort them, but the question I have is - the engine has done 20,000 miles since a re-bore, is it normal to have the honing marks still visible in the cylinder bores. the reason i ask is that the cylinder with the lowest compression seams to have the worst marks. the car didn't seam to burn much oil and seamed to go o.k.
Reply | Report as offensive | Link
Wed 17 Mar 2004 22:32
fiesta misfiring - Civic8
You did not mention how low the compression was on that cylinder which I would assume to be no/4 honing marks can stay for a while.but should not cause any compression problems.from what you said would assume you have a slight weak mixture.
Reply | Report as offensive | Link

10 warranty myths exposed

Here’s how to sort the fact from the fiction when it comes to car warranties.

Cheap Car Warranties

Looking for a garage you can trust? Honest John's Good Garage Guide has thousands of reader recommended garages, plus how-to guides and tips on servicing.

The Good Garage Guide