Hi, recently bought a fl2 with the cambelt lipped a few teeth.
Replaced all rocker arms and cambelt kit, now it's spinning over Asif it has no compression, IV checked the cam timing and the belt timing and I'm officially stumped, any help would be appreciated, thanks

If the valve timing is correct following belt failure, It's likely that you may have one or more bent valves, you would need to do a proper compression test to verify this.

freelander2tom wrote:

Hi, recently bought a fl2 with the cambelt lipped a few teeth.
Replaced all rocker arms and cambelt kit, now it's spinning over Asif it has no compression, IV checked the cam timing and the belt timing and I'm officially stumped, any help would be appreciated, thanks

Im assuming we are talking about a diesel.
How did it "slip a few teeth". Im my limited experience cambelts give way completely and/or get thrown off by pulley failure.
from
If just got no compression in a cylinder (or several) then the gasses have leaked out somewhere - either through the valves or via the pistons.

I had a Defender TD which gradually got more and more smokey - blue smoke and pressuring the crank case. Head off - all 4 pistons had indentations fron being being hit by valves during some previous cambelt failure before I bought it. The valves were fine (must have been replaced) but all 4 pistons had cracks in the crowns and 2 had holes you could see through . Yet it still started and ran.
That triggered a V8 conversion.

 Jules

From past experience working on diesel engines, especially HDI engines, when the cambelt snaps it damages the rocker arms which straight away take any pressure off the valves so it doesn't usually damage them, also I think if valve damage had occured it would be locking up on the valves when I'm trying to time it up, which it is not. I removed the head on my last fl2 due to a snapped cambelt and the valves were fine, thanks anyway I'll keep looking

Modern engines are very susceptible to spinning the cam lobes, giving the impression that it is timed up, but the cam lobes are all wrong...

Just removed the timing ring from the crank, there are chunks of rubber missing from where the cambelt broke, I'm aware this could prevent it from starting but won't explain the sound of no compression, I need to do a compression test

It also seems to have plenty of compression when turning over by hand but when wizzed over on the starter it sounds like next to nothing

freelander2tom wrote:

Just removed the timing ring from the crank, there are chunks of rubber missing from where the cambelt broke, I'm aware this could prevent it from starting but won't explain the sound of no compression, I need to do a compression test

No from the rubber ring that the crank sensor picks up the timing signal from

Any ideas? I'm stuck lol

Mikey wrote:

Modern engines are very susceptible to spinning the cam lobes, giving the impression that it is timed up, but the cam lobes are all wrong...

Is it possible on the freelander? IV checked the cams and they seem solid unlike 1.6 HDI cams IV had loads of them spin