Drinking Coolant / Head Gasket / Emissions

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Well... Now my brakes are back to almost normal, I can return to this. I have booked an MOT for Thursday - to see if it'll pass emissions, but should it fail (it still has that odd misfire) I still have a few ideas, before I rebuild the motor.

It could be some of the following so I am looking for advice on how to test these in the best way possible ideally without £400 smoke machines or emissions testers.

Spark Plugs - I am going to take them out and get pictures of each one, one by one, to compare them and see if there is too much fuel / not enough / oil and or coolant etc

HT Leads - This I am not sure how to test without simply replacing them. - but may be worth cleaning the ground attached to the gearbox as that is connected through to the HT leads...?

Distributor cap - I am sure this won't be the issue - Because I replaced it about a year ago now, though I suppose I have been green-laning / off roading a few times since so it is possible dirt or debris got in there? I will go in and take a look.

Rotor arm - Again I think this is unlikely as like the previous one I replaced this about 12 months ago... But I am sure I will look into that when taking the dizzy cap off.

Distributor shaft play - Will check again.

Wiring & grounds - As mentioned I will probably remove the gearbox ground and some other grounds I can find to clean them and try again.

Vacuum lines - I will spray all the vacuum lines I can find with brake clean to see if I can find a leak (increase of revs).


If anyone has anything else I can check, please let me know before I spend ~£1500 on an motor rebuild as realistically I don't want to do that soon, eventually though :)
 
Well... Now my brakes are back to almost normal, I can return to this. I have booked an MOT for Thursday - to see if it'll pass emissions, but should it fail (it still has that odd misfire) I still have a few ideas, before I rebuild the motor.

It could be some of the following so I am looking for advice on how to test these in the best way possible ideally without £400 smoke machines or emissions testers.

Spark Plugs - I am going to take them out and get pictures of each one, one by one, to compare them and see if there is too much fuel / not enough / oil and or coolant etc

HT Leads - This I am not sure how to test without simply replacing them. - but may be worth cleaning the ground attached to the gearbox as that is connected through to the HT leads...?

Distributor cap - I am sure this won't be the issue - Because I replaced it about a year ago now, though I suppose I have been green-laning / off roading a few times since so it is possible dirt or debris got in there? I will go in and take a look.

Rotor arm - Again I think this is unlikely as like the previous one I replaced this about 12 months ago... But I am sure I will look into that when taking the dizzy cap off.

Distributor shaft play - Will check again.

Wiring & grounds - As mentioned I will probably remove the gearbox ground and some other grounds I can find to clean them and try again.

Vacuum lines - I will spray all the vacuum lines I can find with brake clean to see if I can find a leak (increase of revs).


If anyone has anything else I can check, please let me know before I spend ~£1500 on an motor rebuild as realistically I don't want to do that soon, eventually though :)

Just bring it along in a few weeks… 😉

Given that you’ve replaced the dizzy etc., and it’s a keeper, I think I’d put new HT leads on it anyway, if it were mine. Depending on the plug conditions, those also.

To check the main earth/s, I guess you could always use another cable for testing (a jump lead?) and see if it improves the situation.
 
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