1929 short 2 converted to a sports style layout and body. Has trialed ok and done many miles without issue this year. Did 80 miles yesterday without issue. Did 6 mile loop today, Including stop at Horsted Keynes station on the Bluebell line (perfect period), again running nicely in all gears including reverse. Got back home and went to select reverse - no go and a decidedly graunchy sound when trying to select first then reverse. Switched off and found the gearbox dumping its oil on the ground. Photos show the issue. A crack that originates at what I assume is the reverse gear bearing/shaft housing and now runs horizontal To about half way along the housing. . Any clues as to why? Is this known? What is the fix? Can you weld up these gearboxes? Any recommendations welcome.
Best regards
Bruce
1929 Gearbox cracked
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Brucegirvan
- Posts: 91
- Joined: Sun Mar 12, 2017 5:59 pm
- Your interest in the forum: Interested in pre war Jowett cars.
Jowett ED 6036 June-1930. Originally a long 2 tourer, converted later to fabric bodied light four.
Jowett PO5051 1929. Originally light 2. Converted to Sports style In 90’s.
Member of VSCC and LCEOS for marshalling and tours. My son (Matt) is now interested in autosolos and trials - ideal Jowett territory. He now owns VO4165, 1930 Long 2 as an oily rag road car. - Given Name: Bruce
- Location: Haywards Heath, West Sussex
1929 Gearbox cracked
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Keith Clements
- websitedesign
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- Your interest in the forum: Jup NKD 258, the most widely travelled , raced and rallied Jowett.
- Given Name: Keith
- Contact:
Re: 1929 Gearbox cracked
Oh dear.
A similar problem can occur on the Javelin clutch housing caused by seisure of the torque reaction ring at the rear of the gearbox. Also uneven tightening of the gearbox bolts might have caused the problem......or just old age.
Anything can be welded by an expert and it may need some machining afterwards. Take lots of accurate measurements before and after welding to check for any warping.
A similar problem can occur on the Javelin clutch housing caused by seisure of the torque reaction ring at the rear of the gearbox. Also uneven tightening of the gearbox bolts might have caused the problem......or just old age.
Anything can be welded by an expert and it may need some machining afterwards. Take lots of accurate measurements before and after welding to check for any warping.
skype = keithaclements ;
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BarryCambs
- Posts: 331
- Joined: Fri Nov 25, 2011 2:49 pm
- Your interest in the forum: Owner of a long two in Cambridge
- Given Name: Barry
Re: 1929 Gearbox cracked
I've had gearboxes and engine blocks welded before, but if a bearing has let go, they often break through at a bearing housing, so once repaired, they need machining / sleeving as well. The 4 pre war boxes seem more difficult to come by, but there doesn't seen to be much shortage of 3 speeds if the worst comes to the worst. If you can find another box, its a good opportunity to make a good one out of two
Barry
Barry
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Chris Spencer
- Posts: 1937
- Joined: Sat Oct 24, 2009 8:45 pm
- Your interest in the forum: Jowett Restoration Specialist
- Given Name: Chris
- Location: Hampshire. UK
Re: 1929 Gearbox cracked
My first port of call would be JCS to see what gearbox / housing availability that they have - fresh stock arrives on regular basis and you never know it could be the easy solution
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37 Jowett 8 HP - In many parts
52 Javelin Std 'Taxi Livery'
52 Javelin Std Patina project
52 Javelin Std Sports project
52 Jupiter SA - Original car - full restoration project
52 Javelin Std 'Taxi Livery'
52 Javelin Std Patina project
52 Javelin Std Sports project
52 Jupiter SA - Original car - full restoration project
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Brucegirvan
- Posts: 91
- Joined: Sun Mar 12, 2017 5:59 pm
- Your interest in the forum: Interested in pre war Jowett cars.
Jowett ED 6036 June-1930. Originally a long 2 tourer, converted later to fabric bodied light four.
Jowett PO5051 1929. Originally light 2. Converted to Sports style In 90’s.
Member of VSCC and LCEOS for marshalling and tours. My son (Matt) is now interested in autosolos and trials - ideal Jowett territory. He now owns VO4165, 1930 Long 2 as an oily rag road car. - Given Name: Bruce
- Location: Haywards Heath, West Sussex
Re: 1929 Gearbox cracked
Thank you all. It is a 3 speed box. It looks like JCS has one that is very close. I am also having a cold welding expert look at the case to see about repair. Having a spare gearbox when running 2 pre-wars, as we, do makes sense. A good clean means the gearbox comes up quite nicely....![Image]()
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Chris Spencer
- Posts: 1937
- Joined: Sat Oct 24, 2009 8:45 pm
- Your interest in the forum: Jowett Restoration Specialist
- Given Name: Chris
- Location: Hampshire. UK
Re: 1929 Gearbox cracked
Bruce - If the cold welding expert does not think its viable - I have a very good contact down your neck of the woods who could possibly laser weld that for you - laser welding creates nil distortion - Chris
37 Jowett 8 HP - In many parts
52 Javelin Std 'Taxi Livery'
52 Javelin Std Patina project
52 Javelin Std Sports project
52 Jupiter SA - Original car - full restoration project
52 Javelin Std 'Taxi Livery'
52 Javelin Std Patina project
52 Javelin Std Sports project
52 Jupiter SA - Original car - full restoration project
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Brucegirvan
- Posts: 91
- Joined: Sun Mar 12, 2017 5:59 pm
- Your interest in the forum: Interested in pre war Jowett cars.
Jowett ED 6036 June-1930. Originally a long 2 tourer, converted later to fabric bodied light four.
Jowett PO5051 1929. Originally light 2. Converted to Sports style In 90’s.
Member of VSCC and LCEOS for marshalling and tours. My son (Matt) is now interested in autosolos and trials - ideal Jowett territory. He now owns VO4165, 1930 Long 2 as an oily rag road car. - Given Name: Bruce
- Location: Haywards Heath, West Sussex
Re: 1929 Gearbox cracked
And the cold welding by Nick Hood from Surelock looks very impressive.
Gearbox rebuild started. Awaiting new layshaft and first gear.
Gearbox rebuild started. Awaiting new layshaft and first gear.
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