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new mystery with my Humber imperial
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Traumjaegercat



Joined: 09 Nov 2020
Posts: 7

PostPosted: Thu Jan 07, 2021 5:47 pm    Post subject: new mystery with my Humber imperial Reply with quote

Hi All,
After sorting out the smoking problem I re-set up my twin Stromberg barbs as per the workshop manual and the car started first go and ran well for a few hours. After coming back to it a few days later it started playing up. It would fire and run rough for a few seconds then spit out of both carbs and stop. Tried to start it a few more times with the same result but it would run slightly longer but I could not keep it running. Every time it spat it would stop. I could not even apply any throttle pressure. This car is driving me mad.
Can anyone out there give me some ideas on what is happening and the cure.
Many thanks
T
Twisted Evil Twisted Evil Twisted Evil
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Ray White



Joined: 02 Dec 2014
Posts: 4215
Location: Derby

PostPosted: Thu Jan 07, 2021 6:13 pm    Post subject: Reply with quote

When you said Strombergs my first thought was the diaphragms.
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Brent29



Joined: 07 Jun 2018
Posts: 23

PostPosted: Thu May 06, 2021 10:34 pm    Post subject: Reply with quote

Have you sorted it out?
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Traumjaegercat



Joined: 09 Nov 2020
Posts: 7

PostPosted: Sun May 09, 2021 6:15 am    Post subject: Reply with quote

Brent29 wrote:
Have you sorted it out?

Thanks for inquiring. The short answer is no and the smoking has come back.
However, I was so fed up with all the problems and decided to pull the motor and go for a re-build.
Took the head in to my local engineering shop for them to start work on the overhaul and they immediately came up with some problems such as a couple of burnt out valves and some worn guides. Now the problems start again. I can't find anyone that has guides for this engine. Does anyone know of anywhere I can get some. The engine is the Rootes group 3 litre as used in the Super snipe and the Imperial. Or has anybody any ideas on how I can get these refurbished or made somewhere. On the car shows on TV such as car S.O.S they seem to find everything that they need. (If only I was that lucky)
Looking forward to some replies
Many thanks
T
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Rick
Site Admin


Joined: 27 Apr 2005
Posts: 21786
Location: UK

PostPosted: Sun May 09, 2021 8:14 am    Post subject: Reply with quote

Traumjaegercat wrote:
Brent29 wrote:
Have you sorted it out?

Thanks for inquiring. The short answer is no and the smoking has come back.
However, I was so fed up with all the problems and decided to pull the motor and go for a re-build.
Took the head in to my local engineering shop for them to start work on the overhaul and they immediately came up with some problems such as a couple of burnt out valves and some worn guides. Now the problems start again. I can't find anyone that has guides for this engine. Does anyone know of anywhere I can get some. The engine is the Rootes group 3 litre as used in the Super snipe and the Imperial. Or has anybody any ideas on how I can get these refurbished or made somewhere. On the car shows on TV such as car S.O.S they seem to find everything that they need. (If only I was that lucky)
Looking forward to some replies
Many thanks
T


Have you tried Speedy Spares? they do Rootes parts.

RJ
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Rick (OCC Admin)
Various 1920s-1960s - Austin, Morris, Commer, Dodge etc.
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mikeC



Joined: 31 Jul 2009
Posts: 1675
Location: Market Warsop, Nottinghamshire

PostPosted: Sun May 09, 2021 8:45 am    Post subject: Reply with quote

Might be worth speaking to Glen at Norfolk Humbers (07799 216533)

http://www.norfolkhumbers.co.uk/
_________________
in the garage: 1931 Austin 7, 1953 Lancia Appia
recently departed: 1967 Singer Chamois, 1914 Saxon, 1930 Morris Cowley, 1936 BSA Scout, 1958 Lancia Appia coupe, 1922 Star 11.9 ... the list goes on!
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alastairq



Joined: 14 Oct 2016
Posts: 1541
Location: East Yorkshire

PostPosted: Sun May 09, 2021 9:48 am    Post subject: Reply with quote

I believe many engine builders can get any sort of guide turned up?

Even in phosphor bronze, if preferred?

[Providing, I presume, they are simple 'tubes'?]
_________________
Dellow Mk2, 1951 built, reg 1952.
Ford Mustang coupe, 1967, 6 cylinder auto.
Fiat 126 BIS
Cannon special [1996 registered. Built in 1950's]
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ukdave2002



Joined: 23 Nov 2007
Posts: 3667
Location: South Cheshire

PostPosted: Sun May 09, 2021 11:05 am    Post subject: Reply with quote

When I needed to source valve guides for pre war Morris's before getting a manufacture quote, I scoured modern guides and found one with the correct dimensions;

https://www.intervalves-technologies.com/wp-content/uploads/catalogues/Intervalves-Technologies-Catalogue-Valve-Guides-2019-11.pdf

Dave
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