I should know better at my age

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PJGD
Posts: 351
Joined: Sun Feb 19, 2006 3:58 am
Your interest in the forum: A Jowett owner since 1965; Javelins, Bradford, and Jupiter (current). Interested in all things Jowett.
Given Name: Philip
Location: Detroit, Michigan, USA
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Re: I should know better at my age

Post by PJGD »

To go along with the previous post, I have done a better drawing of the Bradford CC valve spring compressor:
Attachments
Jowett Bradford CC Valve Spring Compressor.png
Philip Dingle
aka, PJGD
David Kemp
Posts: 552
Joined: Sun Mar 09, 2008 1:18 pm
Location: Brisbane ,Australia
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Re: I should know better at my age

Post by David Kemp »

I made the valve spring compresser. It worked very well, the rusty lump of steel next to it is the scrap I started with.
Sadly as I suspected the exhaust valve on the drivers side is cactus.
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Good memories of Bradfords.
David Kemp
Posts: 552
Joined: Sun Mar 09, 2008 1:18 pm
Location: Brisbane ,Australia
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Re: I should know better at my age

Post by David Kemp »

Oddly a valve facing machine was for sale locally cheap.
I bought it & incredably re faced the valve.
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Good memories of Bradfords.
StevenGray
Posts: 51
Joined: Fri Mar 14, 2008 11:39 pm
Your interest in the forum: Jowett Bradford 1948 "CB" Model
Given Name: Steven
Location: West Midlands
Contact:

Re: I should know better at my age

Post by StevenGray »

That is a nice find, I looked on Ebay here in the UK and there are a couple available for £150-200.
I have in the past refaced some in a small lathe using a carbide tool,
most old valves are not particularly hard so a good finish can be attained
Bradford Owner since 1971
David Kemp
Posts: 552
Joined: Sun Mar 09, 2008 1:18 pm
Location: Brisbane ,Australia
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Re: I should know better at my age

Post by David Kemp »

This is the easy way to lap valves, it takes 5 minutes with this air tool rather than 50 minutes by hand.
It is also easier on my old hands!
The end of both intake & exhaust valves were worn & needed grinding.
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Good memories of Bradfords.
David Kemp
Posts: 552
Joined: Sun Mar 09, 2008 1:18 pm
Location: Brisbane ,Australia
Contact:

Re: I should know better at my age

Post by David Kemp »

After fixing this valve on the drivers side, the other cylinder was now down on power by comparison.
So off came the head & the exhaust valve was also needing a grind. By luck a box of NOS valves was for sale on ebay.
The odd thing was my Jowett valve spring compresser worked fine for three valves but could not remove the last valve. Possibly tha cam shaft lobe on this valve does not have the same lift as the others.I am not pulling it apart to find out.
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Good memories of Bradfords.
David Kemp
Posts: 552
Joined: Sun Mar 09, 2008 1:18 pm
Location: Brisbane ,Australia
Contact:

Re: I should know better at my age

Post by David Kemp »

One step forward & another one back. Thats the old car tango.
The front axle eyes are oval not round. One kingpin fell out it was so loose.
Any ideas on a fix? Is the axle steel or iron?
If steel possibly I could run a bead of weld to shrink it.
All sugestions welcome.
Good memories of Bradfords.
StevenGray
Posts: 51
Joined: Fri Mar 14, 2008 11:39 pm
Your interest in the forum: Jowett Bradford 1948 "CB" Model
Given Name: Steven
Location: West Midlands
Contact:

Re: I should know better at my age

Post by StevenGray »

The axle is a steel forging so is weldable.
I would consider machining the axle and bushes out to 18mm and making some new pins to suit.
I would think that it is doubtful that running a weld around the outside would shrink the bore sufficiently to work.
Bradford Owner since 1971
David Kemp
Posts: 552
Joined: Sun Mar 09, 2008 1:18 pm
Location: Brisbane ,Australia
Contact:

Re: I should know better at my age

Post by David Kemp »

I tried the welding method, this worked well but not good enough. I contacted the club & they do have front axles.
I just need to wait till Jim our parts guy is back from the annual rally & I have my Subaru out of the workshop.
A 5$ part failed, filling the sump with water & radiator with oil. This requires the engine to be removed as sump is bolted to the bell housing , then total engine dismantling.
A crazy dedign if I ever saw one.
How they expected an o ring to last the life of an engine beats me.
Good memories of Bradfords.
David Kemp
Posts: 552
Joined: Sun Mar 09, 2008 1:18 pm
Location: Brisbane ,Australia
Contact:

Re: I should know better at my age

Post by David Kemp »

I have picked up another axle & have started cleaning it up.
It has been sitting outside for many years.
It looked very unloved compared to the other axle in storage however after measuring wear it was the best..
Which shows folks please dont dump those old rusty parts as they can still have life.
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Attachments
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Good memories of Bradfords.
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