Car cuts out as warming up...
Discussion
The old Nissan PAO I have has developed an issue where at the exact moment it appears to come off the choke from a cold start and the temp gauge has moved just a fraction off cold, it will instantly just die. It doesn't really cough and splutter etc, it just dies.
It starts fine from cold (although when left for some time takes a few cranks), will idle perfectly and in fact, if you can be bothered to drive it as it is, it even drives fine but will cut out when you stop at lights etc unless you keep the revs up.
PAO fans keep telling me to change all the vac hoses, but could that really be the issue here?
It's a 900 odd cc K10 micra engine (automatic) with a carb
Anyone had something similar? There is no variation on the time when it cuts out when started from cold, it's always exactly the same. Once it does cut out, you then have to keep the revs up yourself if you wish to drive it. Once moving, you wouldn't even know there was a problem.
This is really one of those issues I feel that will result in you trying ten different things before going "ahh, so it was the...."
I know heat can cause issues to things like dizzy caps etc, but where do you start?!
It starts fine from cold (although when left for some time takes a few cranks), will idle perfectly and in fact, if you can be bothered to drive it as it is, it even drives fine but will cut out when you stop at lights etc unless you keep the revs up.
PAO fans keep telling me to change all the vac hoses, but could that really be the issue here?
It's a 900 odd cc K10 micra engine (automatic) with a carb
Anyone had something similar? There is no variation on the time when it cuts out when started from cold, it's always exactly the same. Once it does cut out, you then have to keep the revs up yourself if you wish to drive it. Once moving, you wouldn't even know there was a problem.
This is really one of those issues I feel that will result in you trying ten different things before going "ahh, so it was the...."
I know heat can cause issues to things like dizzy caps etc, but where do you start?!
Great, thanks chaps. I just didn't want to start tearing off hoses which seemed to be ok in appearance at least before getting a second opinion.
I'm not sure exactly how many vac lines it has, but the engine bay is full of hoses so I will do some more digging!
The problem with the PAO forums is that vac lines crop up quite often relating to various issues, so you get the impression it would be suggested as a solution if you were to tell them one of your wheel bearings had gone.
I'm not sure exactly how many vac lines it has, but the engine bay is full of hoses so I will do some more digging!
The problem with the PAO forums is that vac lines crop up quite often relating to various issues, so you get the impression it would be suggested as a solution if you were to tell them one of your wheel bearings had gone.
Just wanted to say, I had a play with the car over the weekend and decided, as I had them anyway, to change the leads and plugs. The plugs which came out were quite sooty and once fitted, she fired up lovely.
As I waited for it to get up to temp, suddenly, oil started appearing. Once warm, it was dripping like a tap. Looking at where it is coming from which appears to be behind the cam cover, I assumed maybe a seal had suddenly gone, but my mate suggested it could be the head gasket and on closer inspection, there was evidence of a lot of oil around the bottom of the engine etc, so it may have been weeping away for some time.
This could, I assume, also relate to the idle issues due to compression loss and possibly explain why you can keep it running with a bit of gas and obviously whilst under choke conditions.
As I waited for it to get up to temp, suddenly, oil started appearing. Once warm, it was dripping like a tap. Looking at where it is coming from which appears to be behind the cam cover, I assumed maybe a seal had suddenly gone, but my mate suggested it could be the head gasket and on closer inspection, there was evidence of a lot of oil around the bottom of the engine etc, so it may have been weeping away for some time.
This could, I assume, also relate to the idle issues due to compression loss and possibly explain why you can keep it running with a bit of gas and obviously whilst under choke conditions.
Thoroughly clean the area of the engine where the oil is so it's all clean & dry as oil spreads all over the place & makes leaks harder to find.
Then start the engine & wait for the leak to reveal itself.
If you have a rubbery type cam cover gasket these harden over time & will leak. Trying to reuse one is false economy.
Then start the engine & wait for the leak to reveal itself.
If you have a rubbery type cam cover gasket these harden over time & will leak. Trying to reuse one is false economy.
paintman said:
Thoroughly clean the area of the engine where the oil is so it's all clean & dry as oil spreads all over the place & makes leaks harder to find.
Then start the engine & wait for the leak to reveal itself.
If you have a rubbery type cam cover gasket these harden over time & will leak. Trying to reuse one is false economy.
Going to have a player during the Christmas break and just to cover a few bases have ordered new gaskets (including rocker cover, manifold and head), cam belt, water pump, oil, filter, coolant and a few other bits. Will update.Then start the engine & wait for the leak to reveal itself.
If you have a rubbery type cam cover gasket these harden over time & will leak. Trying to reuse one is false economy.
Not sure if the head will need skimming if it turns out to be that. It didn't overheat on me, but then for all I know, the last owner may have had that happen and chucked some bars leaks type stuff in it to get shot!
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