The Triumph Dolomite Club - Discussion Forum

The Number One Club for owners of Triumph's range of small saloons from the 1960s and 1970s.
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 Post subject: Head lights
PostPosted: Sun Mar 19, 2017 8:28 pm 
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Joined: Mon Dec 12, 2016 9:53 pm
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Location: Harrow Middlesex
Hi should the headlight backing bowls be the same for inner and outer lights[/
Just on my car on the inner lamps i dont have the backing bowls

Daveolor]


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 Post subject: Re: Head lights
PostPosted: Sun Mar 19, 2017 8:31 pm 
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Joined: Sun Aug 21, 2011 5:12 pm
Posts: 7047
Location: Highley, Shropshire
Inner lights have a backless backing bowl, more of a mounting ring really, outers have a full bowl, which was originally steel, modern substitutes are plastic. New inners are not really available, but you can easily cut the back out of a tin or plastic outer to make an inner.

Steve

_________________
'73 2 door Toledo with Vauxhall Carlton 2.0 8v engine (The Carledo)
'78 Sprint Auto with Vauxhall Omega 2.2 16v engine (The Dolomega)
'72 Triumph 1500FWD in Slate Grey, Now with RWD and Carledo powertrain!

Maverick Triumph, Servicing, Repairs, Electrical, Recomissioning, MOT prep, Trackerjack brake fitting service.
Apprentice served Triumph Specialist for 50 years. PM for more info or quotes.


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 Post subject: Re: Head lights
PostPosted: Sun Mar 19, 2017 8:36 pm 
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Location: Harrow Middlesex
Quote:
Inner lights have a backless backing bowl, more of a mounting ring really, outers have a full bowl, which was originally steel, modern substitutes are plastic. New inners are not really available, but you can easily cut the back out of a tin or plastic outer to make an inner.

Steve
Steve

That sounds how my inners are no bowl as such,do you know if a bowl will fit ?

Dave


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 Post subject: Re: Head lights
PostPosted: Sun Mar 19, 2017 9:09 pm 
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TDC Shropshire Area Organiser

Joined: Sun Aug 21, 2011 5:12 pm
Posts: 7047
Location: Highley, Shropshire
Quote:
Quote:
Inner lights have a backless backing bowl, more of a mounting ring really, outers have a full bowl, which was originally steel, modern substitutes are plastic. New inners are not really available, but you can easily cut the back out of a tin or plastic outer to make an inner.

Steve
Steve

That sounds how my inners are no bowl as such,do you know if a bowl will fit ?

Dave
TBH i've never tried, why would you? But I can think of 2 reasons why not, 1) it may not fit and 2) the absence of a bowl, at least on the offside, lets more cold air into the carbs behind it. On my 2 headlight car I have actually got the cone air filter where the back of the inner lamp would be.

Steve

_________________
'73 2 door Toledo with Vauxhall Carlton 2.0 8v engine (The Carledo)
'78 Sprint Auto with Vauxhall Omega 2.2 16v engine (The Dolomega)
'72 Triumph 1500FWD in Slate Grey, Now with RWD and Carledo powertrain!

Maverick Triumph, Servicing, Repairs, Electrical, Recomissioning, MOT prep, Trackerjack brake fitting service.
Apprentice served Triumph Specialist for 50 years. PM for more info or quotes.


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 Post subject: Re: Head lights
PostPosted: Sun Mar 19, 2017 10:25 pm 
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a bowl will not fit due to a inner steel panel behind the front valance.

As the shortcut not showing the topic - here is the picture.

Image

Paul

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Image


Last edited by Flyfisherman on Thu Oct 05, 2017 9:52 pm, edited 1 time in total.

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 Post subject: Re: Head lights
PostPosted: Sun Mar 19, 2017 11:07 pm 
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I trimmed my down to fit and using polymorph and sealant to bond it to the panel to stop crap getting in.

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 Post subject: Re: Head lights
PostPosted: Mon Mar 20, 2017 9:34 pm 
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Joined: Mon Dec 12, 2016 9:53 pm
Posts: 1710
Location: Harrow Middlesex
Quote:
Quote:
Quote:
Inner lights have a backless backing bowl, more of a mounting ring really, outers have a full bowl, which was originally steel, modern substitutes are plastic. New inners are not really available, but you can easily cut the back out of a tin or plastic outer to make an inner.

Steve
Steve

That sounds how my inners are no bowl as such,do you know if a bowl will fit ?

Dave
TBH i've never tried, why would you? But I can think of 2 reasons why not, 1) it may not fit and 2) the absence of a bowl, at least on the offside, lets more cold air into the carbs behind it. On my 2 headlight car I have actually got the cone air filter where the back of the inner lamp would be.

Steve
Steve

Glad i asked the question,and didnt jump in like bull in china shop,like i usually do,hadnt thought about air flow :D :D mind you at the moment i have lots of air flow with rusted light mounting
:D

Dave


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 Post subject: Re: Head lights
PostPosted: Mon Mar 20, 2017 9:38 pm 
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Joined: Mon Dec 12, 2016 9:53 pm
Posts: 1710
Location: Harrow Middlesex
Quote:
a bowl will not fit due to a inner steel panel behind the front valance.

Image

Paul
Paul

Thanks ,i see what you mean,your car looks in good condition

Dave


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 Post subject: Re: Head lights
PostPosted: Mon Mar 20, 2017 10:07 pm 
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Future Club member hopefully!
Future Club member hopefully!
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Joined: Sat Sep 04, 2010 10:42 am
Posts: 980
Quote:
Quote:
a bowl will not fit due to a inner steel panel behind the front valance.

Image

Paul
Paul

Thanks ,i see what you mean,your car looks in good condition

Dave
Dave

thanks for your comment regarding the condition of my car - the headlight retension panels / spacer brackets are held in position via set screws and rivnuts, makes it easy to remove if required, all parts were powder coated prior to fitment.

Paul

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 Post subject: Re: Head lights
PostPosted: Tue Mar 21, 2017 9:13 pm 
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Joined: Mon Dec 12, 2016 9:53 pm
Posts: 1710
Location: Harrow Middlesex
Quote:
Quote:
Quote:
a bowl will not fit due to a inner steel panel behind the front valance.

Image

Paul
Paul

Thanks ,i see what you mean,your car looks in good condition

Dave
Dave

thanks for your comment regarding the condition of my car - the headlight retension panels / spacer brackets are held in position via set screws and rivnuts, makes it easy to remove if required, all parts were powder coated prior to fitment.

Paul
Paul

that's a good idea making it re-moveable, may do some thing like that my self

Dave


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 Post subject: Re: Head lights
PostPosted: Tue Mar 21, 2017 9:27 pm 
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TDC Shropshire Area Organiser

Joined: Sun Aug 21, 2011 5:12 pm
Posts: 7047
Location: Highley, Shropshire
When I fit my new club headlamp support panels, I will be screwing rather than welding too! It will make it a few minutes work to remove the entire pair of lights to clean behind them, an area which is almost totally inaccessible under normal "standard" conditions. This will also make it a doddle to clean and lubricate the headlamp adjusters. I will also be using self tappers and spire nuts to secure the headlamp bowls to the mounting plates, rather than the pop rivets that were originally used.

It is in our own interest to make these small design alterations, the way the factory did it was not necessarily the BEST way, just the CHEAPEST.
With more time on our hands, a bit of lateral thinking and free labour, we can do BETTER than new!

Steve

_________________
'73 2 door Toledo with Vauxhall Carlton 2.0 8v engine (The Carledo)
'78 Sprint Auto with Vauxhall Omega 2.2 16v engine (The Dolomega)
'72 Triumph 1500FWD in Slate Grey, Now with RWD and Carledo powertrain!

Maverick Triumph, Servicing, Repairs, Electrical, Recomissioning, MOT prep, Trackerjack brake fitting service.
Apprentice served Triumph Specialist for 50 years. PM for more info or quotes.


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 Post subject: Re: Head lights
PostPosted: Tue Mar 21, 2017 9:42 pm 
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TDC Member

Joined: Mon Dec 12, 2016 9:53 pm
Posts: 1710
Location: Harrow Middlesex
Quote:
When I fit my new club headlamp support panels, I will be screwing rather than welding too! It will make it a few minutes work to remove the entire pair of lights to clean behind them, an area which is almost totally inaccessible under normal "standard" conditions. This will also make it a doddle to clean and lubricate the headlamp adjusters. I will also be using self tappers and spire nuts to secure the headlamp bowls to the mounting plates, rather than the pop rivets that were originally used.

It is in our own interest to make these small design alterations, the way the factory did it was not necessarily the BEST way, just the CHEAPEST.
With more time on our hands, a bit of lateral thinking and free labour, we can do BETTER than new!

Steve
Steve

when you say spire nuts,are they small plastic clips that you then put a screw in the middle,the stag headlights are put together using that method

Dave


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 Post subject: Re: Head lights
PostPosted: Tue Mar 21, 2017 11:53 pm 
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TDC Shropshire Area Organiser

Joined: Sun Aug 21, 2011 5:12 pm
Posts: 7047
Location: Highley, Shropshire
A Spire nut is a narrow U shaped spring steel clip with a hole in one side and a matching thread bit to take a self tapper in the other side, the U bit fits either side of the panel you wish to screw to (near edges only, obviously) A cheaper alternative to rivnuts and perfect for this job.

Steve

_________________
'73 2 door Toledo with Vauxhall Carlton 2.0 8v engine (The Carledo)
'78 Sprint Auto with Vauxhall Omega 2.2 16v engine (The Dolomega)
'72 Triumph 1500FWD in Slate Grey, Now with RWD and Carledo powertrain!

Maverick Triumph, Servicing, Repairs, Electrical, Recomissioning, MOT prep, Trackerjack brake fitting service.
Apprentice served Triumph Specialist for 50 years. PM for more info or quotes.


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