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Fiesta 1.3efi 98/99 - Loss of compression

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Fiesta 1.3efi 98/99 - Loss of compression
22 April 2009, 6:08 PM
FullFiesta
Joined 1 Feb 2008
32 posts

Hello

Took off the rocker cover last night to give the tappets a tune as they were getting a little bit noisey lol.

Anyways, after putting everything back together I turned the engine over and these were the following symptons:

Engine "wobbling" inside the bay
Misfiring
Backfiring
Generally sounding very rough and hugh loss of power because of no compression...

Everything was fine before (yes i no if it aint broke dont fix it....)

Anyways after a little investigating I have found the 2nd chambre is not firing as when I removed the HT cable the engine had no different working - removing the others stalled the engine.

I discovered a burnt plug so replaced, checked the HT was carring the spark but the engine still performs exactly the same.

Garage without looking at it say possible valve...

Anyone else got any other ideas before I splash the cash?

Thanks
Nic

Discussion Archived

Fiesta 1.3efi 98/99 - Loss of compression
22 April 2009, 8:01 PM
-  Edited by tjp 22 April 2009, 8:08 PM
tjp
Joined 15 Jun 2007
599 posts

are you sure that you haven't adjusted the valve clearances too tight?
This would cause a loss of compression, and it seems a big co-incidence that it happened straight after you adjusted the tappets!
Also, when you say that the plug was burned, was it actually burned out, or just worn?
Discussion Archived

Fiesta 1.3efi 98/99 - Loss of compression
22 April 2009, 9:44 PM
FullFiesta
Joined 1 Feb 2008
32 posts

Trust me, the plug was fried!

If anything the tappets were too loose, as started by losening them.

Although I would not rule out that maybe they were too tight...

Discussion Archived

Fiesta 1.3efi 98/99 - Loss of compression
23 April 2009, 7:42 PM
FullFiesta
Joined 1 Feb 2008
32 posts

Anyone else got any ideas at all?

Cheers

Discussion Archived

Fiesta 1.3efi 98/99 - Loss of compression
24 April 2009, 5:56 AM
tjp
Joined 15 Jun 2007
599 posts

If the plug really was burnt, then it looks like the engine has overheated, and a burnt valve is a possibility.
Discussion Archived


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