Messages

46

Ace, Aceca & Greyhound Forum / Re: SU H2 hydraulic dampers

« on: May 18, 2022, 17:44:22 »

Chris,

Thanks for your input. I actually had the carburettors for 31 restored at Burlen something like 6-7 years ago. As far as I can understand they did a good job and they work okay.

I do occasionally have some running on issues that could potentially come from a butterfly or butterflies not closing as much as they should.

I did notice, for instance, that Burlen didn’t match the right dashpots with the correct pistons when reassembling… They are all marked 1, 2 and 3…

However I’m slowly planing to make a spare engine and this time I will try to restore the carburettors myself. Burlen haven’t got any “solid” pistons so when restoring one has to keep the original ones, if that is important to the restorer!

But still nobody on this forum that knows if later, AC engines cars came equipped with SU’s with hydraulic dampers or not?

Please, if anybody knows about this, do post.

Thanks

Jonas

47

Ace, Aceca & Greyhound Forum / Re: SU H2 hydraulic dampers

« on: May 11, 2022, 05:06:35 »

Barrie,

No, I was merely wondering if 31 had the correct type of carburettors, or rather suction chamber pistons!

Part of the reason is that the first time I saw 31 was in 1981, after it had been “restored” by the then owner, that also at the time, owned roughly 30 prewar MG’s! I have been pondering over the possibility that he might have made a change…

Since the dampers were introduced even before the war. But since two early UMB engine owners have come forward, I’m sure that it’s correct.

The question if later Ace’s and Aceca’s came equipped with H2 carburettors with hydraulic dampers still remains, surely there have to be someone on this forum that knows about that.

Thank you.

Jonas

48

Ace, Aceca & Greyhound Forum / Re: SU H2 hydraulic dampers

« on: May 08, 2022, 17:02:38 »

Hi Nick and Barrie,

Please find some pictures of my carburettors enclosed. Externally they do look identical to any other H2 carburettor that has dampers. Interestingly enough I just spoke to a friend that has an early Aceca, I.e. from the spring of 1955, and that car doesn’t have any dampers either.

I realise  is that I might be totally wrong since I assumed that later cars have dampers. This is an assumption based on the fact that I have bought a number of carburettors that were supposed to be from later Ace’s, and they all have dampers…

To try to answer your question Barrie, I did read on an MG forum that MG changed to H2 carburettors on the TC’s, with dampers in August 1947. The reason was that during hard acceleration the (xpag) engines sucked too much air resulting in a too weak mixture. I’m obviously no expert and I have no other evidence for this.

Obviously the Weller engine is also a different beast compared to the MG TC engine.

I also believe the question has to be changed a bit, did any later AC’s with the Weller engine have SU carbs with dampers?’

Jonas

Note, the top image shows the solid piston.

49

Ace, Aceca & Greyhound Forum / Re: SU H2 hydraulic dampers

« on: May 08, 2022, 09:14:16 »

Hi Nick,

Thanks for the tip. I think I did ask them when I had these carburettors restored at Burlen. However this was roughly 10 years ago so I’m definitely going to ask them now.

Still if anybody with an early Ace could inform me if they have dampers or not on their carburettors I would love to hear about that. Thinking about it, does anybody know if the 2 litre saloon cars had dampers or not?

Thanks.

Jonas

50

Ace, Aceca & Greyhound Forum / SU H2 hydraulic dampers

« on: May 07, 2022, 19:51:48 »

Dear all,

I’ve been wondering about the carburettors on AEX 31. They are H2 like they should be, however they haven’t got any dampers. Maybe this is correct but as far as I understand for the SU H-type - the addition of the hydraulic piston damper carburettors were introduced as early as in August 1947.

So I’m curious what kind of carburettors other early Aces or Acecas out there have? That could be expected to be original.

The carburettor bodies on AEX 31 are branded PDC 3229.

Grateful if anybody could shed some light on this.

Regards Jonas

51

Ace, Aceca & Greyhound Forum / Re: New AC Ace/Aceca Rear Hub Tapered Spline Conversion Kit

« on: April 25, 2022, 21:44:02 »

I thought I should inform interested parties about my personal experience with these splined conversions. I’m aware that different parts of this have been discussed in at least two different threads.

One experience is that the rear bearings that JSW supplied didn’t last more than a couple of hundred miles. I suspect part of the reason for this is that the number of balls in the cages are a lot fewer.

Furthermore after sourcing “modern” bearings with the same specifications I have noticed that these have l more play than the original R & M bearings.

Subsequently I finally managed to get hold of some new old stock R & M LDJ 40 / 4208 bearings with brass cages and they work absolutely fine.

A another point is that I did zink-nickel plate the hubs, not on the splined area, but the rest. I did ask JSW about this and they didn’t object at all to this finish.

The last part of the experience with the rear bearings is that I have asked JSW a number of times about the reason why they switched “back” to an original castellated nut. So far without any answer given.

Regardless I would be interested to hear if anybody else on this forum has had any experience with these conversion.

Kind regards

Jonas

52

Ace, Aceca & Greyhound Forum / Re: Brake adjuster spanner and bleeder tools

« on: November 22, 2021, 05:23:24 »

Dear Luke,

I would like to start by thanking you for making these
parts available to us in need!

I’ve tried to PM you but I’m uncertain if my message (s)
have actually reached you, could you let me know please?

If not, can you post your email address?

Kind regards

Jonas

53

Ace, Aceca & Greyhound Forum / Re: Ace wheel bearings

« on: August 17, 2021, 15:43:07 »

Hello everybody,

I did order some 4208, Koyo bearings from Henderson Bearings. When inspecting these bearings I noticed a slight axial play. It moves just fractionally with just a slight push with my fingers. I spoke with another AC enthusiast who has some nos FAG bearings and he tells me that he can’t detect any play at all in those.

Any thoughts from anybody on this? I also spoke to Henderson’s but they couldn’t really advice at all.

Grateful for any input.

Regards Jonas

54

Ace, Aceca & Greyhound Forum / Re: Ace wheel bearings

« on: August 11, 2021, 18:34:56 »

Robin,

Thanks for the info. Very much appreciated.

Kind regards

Jonas

55

Ace, Aceca & Greyhound Forum / Ace wheel bearings

« on: August 10, 2021, 05:04:02 »

Dear all,

I’m looking for some new (NOS!) wheel bearings for AEX 31. Especially the rear outer bearings. So if anybody has a set of Ransome and Marles LDJ 40 bearings for sale or knows of anybody that might have some for sale, please let me know.

Thanks in advance for any help with this.

Jonas

56

Ace, Aceca & Greyhound Forum / Re: Brake adjuster spanner and bleeder tools

« on: July 11, 2021, 21:12:42 »

I’m on! Unpainted for me please. Thanks for sorting this Out.

57

Ace, Aceca & Greyhound Forum / Brake adjuster spanner and bleeder tools

« on: May 22, 2021, 08:43:48 »

Dear all,

I’m looking for original, rear brake adjuster spanner and bleeder socket tool
for AEX 31 which is an AC engined Ace from 1954.

It doesn’t really matter if they are original or reproductions as long as they
look like the original ones.

Any hints or tips gratefuly appreciated. Or if anybody would have any for sale:
Top dollar paid!

Thanks. Jonas

58

Ace, Aceca & Greyhound Forum / Re: Oily speedometer

« on: May 20, 2021, 18:20:32 »

Thanks for all the valued input concerning my oily speedometer. I might not fully understand the cause of the problem even though I feel Mr Bird’s theory sounds very plausible. Regardless I have modified the speedometer drive housing to hopefully solve the problem.

With valued input from a fellow AC enthusiast I had the shaft grind down to be able to accommodate a small lip seal (15 x 10 x 4 mm). Then as luck would have it a small O-ring fits nicely on the square peg from the speedometer cable, that sits in the speedometer drive axle so to speak.

Hopefully this will keep the old speedometer unlubricated! I will keep the forum updated if this is a solution or not, if anybody will ever experience the same dilemma.

Which I sincerely hope no one does!

Jonas

59

Ace, Aceca & Greyhound Forum / Re: Oily speedometer

« on: April 23, 2021, 10:00:04 »

Barrie,

I found this image on the internet, copyright Ian Strange. As you can see the only oil passage seems to be through the bearing.

I also enclude an image of my gearbox prior to assembly hoping that maybe somebody can spot a missing link.
There are no bearings in the images so maybe not that helpful! But who knows, stranger things have happened.

Thanks Jonas

60

Ace, Aceca & Greyhound Forum / Re: Oily speedometer

« on: April 22, 2021, 20:13:38 »

Dear Robin,

Thanks for your input. I did look through SC parts website and I can see both o-rings and gaskets but they appear to be for later cars. The equivalent, from a period perspective  would be the XK 120 I guess and the speedometer drive in these doesn’t seem to have any o-ring. I could be wrong of course.

Jonas