15 replies to this topic

[Adge456]

Hi all,

Trying to get my Austin Mayfair stated after 6 years. It had a blown head gasket. I have replaced this and had a few niggly issues with an electronic distributor so reverted to new points. I have got the car running however it is spluttering fuel out the air intake of the Hs4.

I have managed to get the distributor to 4 degrees as it was very advanced but the problem is persistent.

There is also exhaust gas by the looks of it coming from the intake.

I did the tappet adjustments following a tutorial and I know I have to get the car to temp and then re-torque but I don't want to run it too long with this issue.

Any advice would be much appreciated.

I will try to answer any questions to diagnose this.

Thanks a ton.

[lsto]

Are the HT leads on the correct plugs? No1 cylinder is the timing chain end and the dizzy spins anti-clockwise, it's easy to get them in the wrong order.

[Adge456]

Yeah, just double checked. Got them going 1, 3, 4, 2. Anti clockwise

[Adge456]

Thinking about what I have just posted, could this be a result of a poor tappet adjustment job?
I may go through it again and see what it is like?

[Spider]

It's typically from a lean mixture.

[Adge456]

Had a look at the tappets and exhaust on cylinder 1 was way out of spec. Don't think I tightened it and it's worked itself loose. I have just eyeballed it for now, done a quick 30 second start and didn't see any fuel or exhaust smoke.
I will set the fuel mixture and go through all of the clearances and hopefully this works.

[68+86auto]

Can you post some pictures of the engine bay, especially some showing the carb, distributor and plug leads.

[Adge456]

The tolerances was the issue. It's running fairly smooth now. Exhaust on cylinder 1 was very loose. I don't think I tightened it fully when making the adjustments and it must have worked it's way loose.
Now onto the next issue. The clutch seems seized. Hopefully just the slave.

I will be moving house in the coming months so my aim is to drive the car to the new property. Nothing like a deadline to give you motivation.

Once I have moved, I'll be looking to do a more thorough restoration

[sonscar]

The plunger on the wok can seize if left for a time,lube it and work it a bit.Steve..

[Adge456]

Yeah I think that is the issue. I disconnected the slave and that moves freely. I've put a bit of WD on the plunger and not much. Added a bit of 3 in 1 and managed to get a little movement so hopefully that will be enough for it to penetrate.

Would you suggest a few light taps or get a bar in there and work it back and forth?

[Designer]

Hi,

 

PlusGas is much better than WD40 as it is a proper penatrating fluid. I beleive WD40 is not classified as a penatrating fluid but more a water repellant.

 

Paddy

[Cooperman]

Check the flexible hose from master cylinder to slave cylinder. I had a stuck clutch recently and after fitting a new slave and master cylinder, I changed the hose and it was that which cured the problem.

[Adge456]

Thank you, I need to order some proper penetrating fluid (something that should be in the garage anyway) so hopefully that will work.

I kept the slave on the hose but removed the pin to the clutch linkage and it moved freely so I do think it's the plunger.

[Adge456]

This is currently how it is seized.

No amount of swearing is helping..

Attached Files

•  PXL_20260728_123130380.jpg   47.93K   0 downloads

Edited by Adge456, Today, 12:33 PM.

[Designer]

Hi,

 

Looking at your picture there should be a 6mm gap between the wok and the righthand of the two nuts below the clutch lever.

I do not know if not having that gap will mean the arm will not move but I am sure someone else will be able to clarify that.

 

Paddy