classic car forum header

Classic cars forum & vehicle restoration.
 FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 
How To Register     Posting Photographs     Privacy Policy     F/book facebook.com/oldclassiccar

My Thwaites Orion dumper, caution, picture heavy!
Post new topic   Reply to topic    Classic cars forum & vehicle restoration. Forum Index -> Classic lorries, steam, vans and pickup trucks - General
Author Message
Julian



Joined: 19 Apr 2010
Posts: 278
Location: Warrington

PostPosted: Sun Mar 11, 2012 9:24 pm    Post subject: My Thwaites Orion dumper, caution, picture heavy! Reply with quote

It was in a pretty sorry state when I got it off the ebay, the only thing that was good was the Petter PH1 engine, the gearbox was totally shagged requiring 4 new bearings for the main and lay-shafts and work on the lever 'gate' as it routinely selected two gears at once (which stops you dead!), plenty of new steering joints, the clutch rebuilding and the brakes de-siezing. 4 new tyres also needed and some new rear rims to replace the Landrover ones previously fitted. Finally sandblasting and 3 coats of Vapormatic Vintage JCB yellow. The seat is a cheet I'm afraid as it's from a ride-on mower!


Here's the clutch, it's interesting as it is (probably Triumph Herald) a brake drum and backplate. There's no hydraulic cylinder, but a spring loaded expander mechanism (similar in principal to a landrover transmission brake)


Here's the gearbox (chain driven)

Full of water

And rebuilt with new bearings - the cogs were OK

Chassis

A good view of the chain drive


Finished


Back to top
View user's profile Send private message
welder



Joined: 26 Nov 2007
Posts: 227
Location: North Warwickshire

PostPosted: Mon Mar 12, 2012 11:47 pm    Post subject: Reply with quote

I used to mend those for a living! I'll admit to having forgotten how bum-basic they were.

Still got a proper clutch-adjusting tool if it's of any use to you.

Ian
Back to top
View user's profile Send private message
buzzy bee



Joined: 23 Nov 2007
Posts: 3400
Location: South Cheshire

PostPosted: Tue Mar 13, 2012 1:14 am    Post subject: Reply with quote

Hey, I like the pictures as much as the real thing! Smile

I was made to cut 5 of these up when working on one of my previous jobs, and a 135... heat breaking!

Cheers

Dave
Back to top
View user's profile Send private message Visit poster's website
Julian



Joined: 19 Apr 2010
Posts: 278
Location: Warrington

PostPosted: Tue Mar 13, 2012 8:36 am    Post subject: Reply with quote

welder wrote:
I used to mend those for a living! I'll admit to having forgotten how bum-basic they were.

Still got a proper clutch-adjusting tool if it's of any use to you.

Ian


I'm OK for the clutch adjusting tool thanks - I've jot the square drive brake adjuster thingy that belonged to my dad.

I've always wondered what Thwaites pinched the axle from - one or two people over the years have said that it was a Salisbury diff from the heavyweight (twin wheel) Ford Transit. Have you any info?

Also, what would you say was the year of manufacture? I know that the earliest offerings from Thwaites had a belt drive arrangement, the chain drive came along later.....

Cheers Julian
Back to top
View user's profile Send private message
welder



Joined: 26 Nov 2007
Posts: 227
Location: North Warwickshire

PostPosted: Tue Mar 13, 2012 11:28 pm    Post subject: Reply with quote

Hi Julian, difficult to accurately date the Orion. I never saw a belt primary driven one, the one's I worked on were all chain drive, from an extension on the end of the camshaft. They ranged from 1966 to 1976 year of manufacture with only detail differences between ages.

The diffs were made by Salisbury Transmissions Ltd, in Witton, Birmingham but I've no idea wether or not the axles were originally meant for other applications.

Injector pump on yours looks newish, I used to enjoy doing the spill-timing on those. NOT!

Is the Thwaites factory at Cubbington still going? That was a pleasant ride out to collect bits, nice leafy lanes back in the early 70's.

Ian
Back to top
View user's profile Send private message
RUSTON



Joined: 07 Mar 2011
Posts: 144
Location: Matlock.

PostPosted: Wed Mar 14, 2012 12:21 am    Post subject: Reply with quote

There is one of those on the site where I store my caravan, the tipper body is missing and the gearbox is belt driven, it was used for moving caravan's about. One peculiarity is that it steers the opposite way, ie to turn right you turn the steering wheel to the left like some of the old traction engines! Keeps the mind focused!! A nice job, well done.

Pete.
_________________
Measure twice...cut once!
Back to top
View user's profile Send private message
Andrew Spencer



Joined: 21 Jan 2014
Posts: 1

PostPosted: Wed Jan 22, 2014 10:11 pm    Post subject: Reply with quote

i'm on with putting an Orion back on the road myself. Thwaites identified the build date from the engine number. Can you tell me what oil grades the engine & gearbox take?
Back to top
View user's profile Send private message
Display posts from previous:   
Post new topic   Reply to topic    Classic cars forum & vehicle restoration. Forum Index -> Classic lorries, steam, vans and pickup trucks - General All times are GMT + 1 Hour
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum


php BB powered © 2001,2005 php BB Grp.