it bl**ody had to happen didnt it...
ok this is what I had been up to recently with my hunter.
1) adjusted the tappets
2) stripped carb, put back together, adjusted
3) adjusted the contacts points on the dizzy
4) got the overdrive working
and some other bits and bobs. This was two weeks back and the car was ok so far.
now this morning the sun was out and we decided to go to north wales with the family. Car was OK from here to near bangor. On the way back on the A55 it was ok, but I suddenly felt the engine dying.
There were some puffs from the back and within a few second the engine cut out completely. For a while it would restart, idle roughly, and as soon as you pressed the accelerator it would cut out. It sounded like when the mixture is too rich... anyway it go to a point where it would hardly start and there is a lot of smoke from the back. No it starts, but idles VERY roughly (sound like a dragster) and cuts out as soon as you touch the pedal.
any ideas??!?! here are some more symptoms
1) the smoke smells like unburnt petrol. I can't smell oil and the colour is think grey as opposed to blue.
2) water seemed fine, no leaks at all, and temperature was ok. checked the expansion tank and not a drop had gone.
3) I filled in the morning with 97 octance petrol, but had half a tank of normal unleaded already in it (with valve master additive). I am not sure about the petrol at all because it was from a texaco garage no one seems to ever use.
4) when I first went to sort out the tappets, there was hardly any clearance at all. I could barely push it any of the feeler gages. When I adjusted them, I redid it three times and followed the book to the letter. However, on completion, the noise which was the original reason I thought the tappets needed adjusting remained.
5) by the way I am not sure if this is related or not, but when I was turning the engine to adjust the tappets, the engine was truning very hard (had all the plugs out).
6) when it happened, there was no sound of anything breaking
anyway, somebody said on my other thread that there is nothing scary under the rocker cover, I am begining to regret I ever ventured that far. My dad says the same thing happened to his hunter 20 years ago and it turned out to be bunt valves...... anyway, any ideas welcome.
What I appreciate most is the quickest and most fool-proof way I can close in on what is the problem. I am really trying to avoid having to take the head out. I have ordered a compression tester off eBay to check the compressions, but even a low compression could be anything from piston rings to the valves. what makes me worried was how it all happened all of a sudden..
any ideas welcome!
ok this is what I had been up to recently with my hunter.
1) adjusted the tappets
2) stripped carb, put back together, adjusted
3) adjusted the contacts points on the dizzy
4) got the overdrive working
and some other bits and bobs. This was two weeks back and the car was ok so far.
now this morning the sun was out and we decided to go to north wales with the family. Car was OK from here to near bangor. On the way back on the A55 it was ok, but I suddenly felt the engine dying.
There were some puffs from the back and within a few second the engine cut out completely. For a while it would restart, idle roughly, and as soon as you pressed the accelerator it would cut out. It sounded like when the mixture is too rich... anyway it go to a point where it would hardly start and there is a lot of smoke from the back. No it starts, but idles VERY roughly (sound like a dragster) and cuts out as soon as you touch the pedal.
any ideas??!?! here are some more symptoms
1) the smoke smells like unburnt petrol. I can't smell oil and the colour is think grey as opposed to blue.
2) water seemed fine, no leaks at all, and temperature was ok. checked the expansion tank and not a drop had gone.
3) I filled in the morning with 97 octance petrol, but had half a tank of normal unleaded already in it (with valve master additive). I am not sure about the petrol at all because it was from a texaco garage no one seems to ever use.
4) when I first went to sort out the tappets, there was hardly any clearance at all. I could barely push it any of the feeler gages. When I adjusted them, I redid it three times and followed the book to the letter. However, on completion, the noise which was the original reason I thought the tappets needed adjusting remained.
5) by the way I am not sure if this is related or not, but when I was turning the engine to adjust the tappets, the engine was truning very hard (had all the plugs out).
6) when it happened, there was no sound of anything breaking
anyway, somebody said on my other thread that there is nothing scary under the rocker cover, I am begining to regret I ever ventured that far. My dad says the same thing happened to his hunter 20 years ago and it turned out to be bunt valves...... anyway, any ideas welcome.
What I appreciate most is the quickest and most fool-proof way I can close in on what is the problem. I am really trying to avoid having to take the head out. I have ordered a compression tester off eBay to check the compressions, but even a low compression could be anything from piston rings to the valves. what makes me worried was how it all happened all of a sudden..
any ideas welcome!
si
, so I don't know if they even have lock nuts. It just sounds as though the clearances could have gone way off.
