Mk1 that wont run
Posted
#820853
(In Topic #98071)
Settling In
Mk1 that wont run
ive bought a 1272c mk1 as a non runner, the previous owner gave up on it, he told me that it blew the head gasket ,which he replaced and since then it wont run.
so far I have swapped the carb for a peirburg as it had a webber32 on it and it was a unknown, ivjust had the head off again reseated all the valves set the tappets and refitted with a new head gasket. set the timing ect
It starts and runs but will not idle or run below 1500rpm
today i want to check the compression but what else could it be, am i over looking something????
Any coments or advice thanks
Posted
Local Hero
Posted
Settling In
The valve timing is correct as is the ignition timing i used the light bulb method.
I have a friend helping me who is quite experienced with cars
forgot to mention have also changed the points and condensor
Ihave heard about rust in the fillerneck/ fuel tank causing cars to cut out could this be an extreme case???? some thing i have not checked yet
Ihave paid your web site a visit very cool :wink:
Alan
Posted
Old Timer
Put the weber back on the pierburgs are poop
Posted
Settling In
Posted
Old Timer
Posted
Local Hero
harvey_inc said
Ihave paid your web site a visit very cool :wink:
Alan
Thanks
Have you adjusted the mixture and idle on the carb???
If the engine runs fine and pulls fine over 1500rpm I doubt it is the fuel supply to the carb as it needs more fuel at higher load/revs.
One option might be to try another or test the fuel pump - I bit of a long shot but may not be delivering the fuel at low revs. Another option is to bypass the fuel return to see if there is a problem with the canister thing.
Mullet52 - Pierburg carbs are fine when they are not worn out - you can't really compare a 25 year old carb to a new one!!
Cheers
Rich
Posted
Old Timer
Posted
Local Hero
Mullet52 said
Well am presuming its a pierburg off a 25+ year old car, so could be tired
No doubt - but it did come from a running engine
Harvey - also check for vacuum leaks
Posted
Settling In
the peiburg carb is of a h reg mk2 that a bloke down the road is breaking, he tells me the car ran before i took it apart,
surley this cancels out a dodgy carb?? if after changing and it still wont run.
fuel pump could be a posibility, although the one on the car looks to be fairly new if that is any thing to go by
thanks for the quick replys
Posted
Settled In
The camshaft marker for valve timing may be bent so you may be a tooth out without realising it, I was a tooth out and still managed to get the car to run the same as you at higher revs.
I know I've posted this same solution many times before but I still stand by it :
If you don't have a strobe timing light and the correct ameter volt meter set-up to set the dwell angle (for points) or to see if the timing belt is actualy set properly, then call out a mobile mechanic costs about ?40-50 and let them set it up for you.
I was tearing my hair out trying to figure out why I couldn't get my car to run properly and was on the verge of attacking it with a big hammer before I called someone out, and now I'm as it's all good.
Posted
Settling In
Thanks Guys
Alan
Posted
Local Hero
Did you change the points after you set the timing? In which case, you'll need to do it again. And set the dwell (points gap) properly too.
Once you've done that, take a close look at your ignition leads and spark plugs; and clean the outside and inside of the dizzy cap.
Once all that's out the way and you're confident its not the ignition system, measure the mixture using a gas analyser. It might have worked previously on another car but the carb will need setting up for yours too.
Posted
Settled In
I gapped my points to the specified gap and did everything by the book and markers and I just admitted defeat in the end.
The other good thing about getting someone out is that if it is something else giving you the problem they will be able to tell you without you having to replace parts blindly trying to cure problems that probably don't exist.
Posted
Settling In
This week is a bit of a night mare for me as im on nights so sleep most of the day and then try to spend some time with the kids in the evening, so no real time to be playing with stuborn cars :wink:
Thanks for all the advice chaps will bear this all in mind when i get some time on the car hopefully tomorrow :roll:
Posted
Settling In
now just need to quickly whip out the gearbox and change a slipping clutch
thanks for all the help chaps
Alan
0 guests and 0 members have just viewed this: None.