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Re-Commissioning Project; 1931 Austin 12/6 - Wish me Luck!

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30 replies to this topic

#1 OFFLINE   tommotech

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Posted 18 August 2018 - 08:44 PM

A friend in need is a pain in the arse, especially when they persuade you to get their car going that they bought blind at an auction. Not that much persuasion was needed, the thing is quite charming really.

However, the engine wouldn’t turn over by hand and the starter had been disconnected sometime before the sale.

Soaking the bores in diesel didn’t budge things and there was evidence of water entry on cylinders 2, 3 & 4. Having some time available yesterday and today the head was stripped off the engine, revealing water damage to the bores of those cylinders and the engine still failing to budge.

Having previously used Coca-Cola to release seized injectors a bottle was purchased and poured onto the pistons, then left to soak overnight. Hey presto the engine turned over after some jostling, but locked up after half a turn.

It was also noted that the valves were not operating when the engine was turning and that a couple of valves were stuck wide open. Damn, the unit has to come out to be stripped, secretly I’m looking forward to getting into this job.

I’m not looking forward to procuring parts made of unobtanium though!
Anyone that has contacts or recommendations for old Austin parts please let me know.

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_____________________________________________________

If in doubt give it a clout, if you're unsure hit it some more................


#2 OFFLINE   Hooli

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Posted 18 August 2018 - 08:47 PM

What a fantastic old thing, bet it's all proper engineering to work on too. Designed for adult hands to fit etc.


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Opinions expressed are those of this cunt, not any other cunt. They do not represent the views of those responsible for this forum.
Like any true Englishman I'm never unintentionally rude. If you're offended by this post, good as that is what was intended.

 


#3 OFFLINE   tommotech

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Posted 18 August 2018 - 08:48 PM

It’s simplicity personified, absolutely lovely to work on.
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_____________________________________________________

If in doubt give it a clout, if you're unsure hit it some more................


#4 OFFLINE   spartacus

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Posted 18 August 2018 - 08:53 PM

That looks great. Is that your workshop, or your friend's, it looks like a well equipped set up.
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#5 ONLINE   320touring

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Posted 18 August 2018 - 08:55 PM

Vulgalour will be on this like a Tramp on chips no doubt..

Top stuff and looking forward to an entertaining thread.
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#6 OFFLINE   tommotech

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Posted 18 August 2018 - 08:57 PM

I’m extremely lucky to have the working facilities of your dreams, as well as the AS Workshop Project that you may have seen.

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#7 OFFLINE   tommotech

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Posted 19 August 2018 - 08:25 AM

Does anyone have any experience of Alderton Austin Services in Tewksbury, or know of anyone that has used them at all?

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#8 OFFLINE   Amishtat

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Posted 19 August 2018 - 08:41 AM

There used to be a chap trading under the name of Available Austins near Coventry, he might be worth a call
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#9 OFFLINE   alf892

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Posted 19 August 2018 - 08:47 AM

The Austin 10 drivers club are pretty good for parts......despite the name! My sis has an 18/6 and they have helped out a few times
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#10 ONLINE   chaseracer

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Posted 19 August 2018 - 10:18 AM

That's a lovely old thing.  Sherpa diesel transplant?

 

<runs away, very fast...>

 

;)


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#11 OFFLINE   tommotech

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Posted 19 August 2018 - 10:40 AM

Great shout for Austin 10 Drivers Club, many components available on their website.

Thanks alf892

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If in doubt give it a clout, if you're unsure hit it some more................


#12 OFFLINE   Momentary Lapse Of Reason

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Posted 19 August 2018 - 11:07 AM

Available Austins is no more.

Try
http://www.aldertona...nservices.co.uk
or
http://www.austinsofoldarley.co.uk

A very interesting project!
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#13 OFFLINE   Squire_Dawson

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Posted 20 August 2018 - 09:14 AM

Strip it first and see the damage. I'd wager the valves can be cleaned up and re-used, and pistons too provided they're not melted or badly scuffed. You might get away with new rings, honing the bores and a crank polish/re-grind and bearings.

 

Any idea as to how it seized?


  • tommotech likes this

Squeak, rattle and roll.

 

 

Thanks restorer.

 

Save the Pangolins.

 

Current shite:

1952 Morris Oxford Series MO - Sidevalve Shite

1959 Humber Super Snipe - Big banger

1962 Morris 1000 Traveller - English Tudorbethan

1975 Austin Allegro 1100 DL - m'Lod

 

Please look out for hedgehogs!


#14 OFFLINE   vulgalour

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Posted 20 August 2018 - 02:50 PM

Oh hi interesting old car.


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#15 OFFLINE   DodgeRover

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Posted 20 August 2018 - 05:31 PM

I would guess water got in somehow, carefully stripping and cleaning might enable everything to be reused if not worn beyond tolerances.
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#16 OFFLINE   vulgalour

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Posted 20 August 2018 - 06:21 PM

I gather sometimes it's from them not being run/stored with antifreeze which then cracks the block too.  Amazingly, even when a block has cracked folks can still repair them successfully.


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#17 OFFLINE   DeeJay

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Posted 20 August 2018 - 06:42 PM

http://www.oldclassi...m/phpbb/phpBB2/

 

Try this forum. Not very busy but very helpful.


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#18 OFFLINE   somewhatfoolish

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Posted 20 August 2018 - 07:10 PM

I gather sometimes it's from them not being run/stored with antifreeze which then cracks the block too.  Amazingly, even when a block has cracked folks can still repair them successfully.

Depending on the location and size of cracks it may be possible to simply have them vacuum infused with sealant, if more extensive then having the cracks stitched may be necessary to stop them growing.


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post-9424-0-06631200-1530529320.jpg


#19 OFFLINE   Nibblet

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Posted 20 August 2018 - 07:31 PM

Mmmm cotton braided cabling...
More photos please.
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#20 OFFLINE   tommotech

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Posted 20 August 2018 - 10:07 PM

I would guess water got in somehow, carefully stripping and cleaning might enable everything to be reused if not worn beyond tolerances.


The cylinder head nuts were not over tight and the head gasket has definitely allowed water past the galleries into the bores.

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#21 OFFLINE   tommotech

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Posted 20 August 2018 - 10:11 PM

Had to visit a client in Cheltenham today so went to meet Mark at Alderton Austin Services, really helpful and it seems that new pistons and a reborn can be had for £500 to £600.

Looks like a rebuild could be done for less than a grand, unless the white metal needs replacing and scraping on the crank bearings, not counting labour of course.

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If in doubt give it a clout, if you're unsure hit it some more................


#22 OFFLINE   tommotech

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Posted 20 August 2018 - 10:14 PM

Strip it first and see the damage. I'd wager the valves can be cleaned up and re-used, and pistons too provided they're not melted or badly scuffed. You might get away with new rings, honing the bores and a crank polish/re-grind and bearings.
 
Any idea as to how it seized?


Head gasket breached, possibly after overheating. It’s clearly stood a while though, with water in the cylinders.

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#23 OFFLINE   Momentary Lapse Of Reason

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Posted 21 August 2018 - 09:58 AM

How flat is the head and the top of the block?

Is there a tappet chest on the side of the engine that you can remove the collets and springs from the valves so you can the work on gently removing them and see if you can get the bottom end to revolve fully?
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#24 OFFLINE   tommotech

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Posted 21 August 2018 - 07:56 PM

How flat is the head and the top of the block?
Is there a tappet chest on the side of the engine that you can remove the collets and springs from the valves so you can the work on gently removing them and see if you can get the bottom end to revolve fully?


Head will go for pressure test / skim if necessary. The engine turns now but locks up after half a turn and the valves fail to operate when the engine rotates, with some valves being stuck fully open.

Engine will be coming out for a full strip.

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If in doubt give it a clout, if you're unsure hit it some more................


#25 OFFLINE   Squire_Dawson

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Posted 22 August 2018 - 10:04 AM

You might still get away with honing the bores if they're not too corroded. They are very agricultural engines so have more tolerance.


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Squeak, rattle and roll.

 

 

Thanks restorer.

 

Save the Pangolins.

 

Current shite:

1952 Morris Oxford Series MO - Sidevalve Shite

1959 Humber Super Snipe - Big banger

1962 Morris 1000 Traveller - English Tudorbethan

1975 Austin Allegro 1100 DL - m'Lod

 

Please look out for hedgehogs!


#26 OFFLINE   tommotech

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Posted 01 September 2018 - 09:39 PM

Engine is out now and further investigation shows that the timing chain is actually good. The water entry into the cylinders had seized the valves in their guides, all turns nicely now it’s been freed off.

Cylinder bores won’t hone out though, so the block will be going for rebore.

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9831D20A-923E-4C58-842A-E597EC851AF7.jpeg
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_____________________________________________________

If in doubt give it a clout, if you're unsure hit it some more................


#27 OFFLINE   DodgeRover

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Posted 01 September 2018 - 10:44 PM

Could you have liners fitted to the water damaged bores and reuse the pistons? I can't imagine o/s pistons are easy to come by.

#28 OFFLINE   tommotech

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Posted 01 September 2018 - 11:13 PM

Oversized pistons and engine rebuild parts are, thankfully, available.

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#29 OFFLINE   Junkman

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Posted 02 September 2018 - 02:23 AM

It's the white metal bearings that would scare me.

I did this once - never again.


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1967 Renault 16 GL.....................................now with new exhaust that doesn't work

1979 Mobylette AV89.........................................................................running

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#30 OFFLINE   tommotech

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Posted 02 September 2018 - 09:46 AM

No evil dual mass issues here!

The friction material is riveted to the cover plate and flywheel, old school thinking but effective. Just an arse to change.

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_____________________________________________________

If in doubt give it a clout, if you're unsure hit it some more................






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