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Carburettor rubber mount

Posted: 09 May 2014 05:25
by nigel
http://home.comcast.net/~rhodes/TR7_adapters.html

can anyone see why this would not work as mine have cracked open again. I could make these but they must be rubber for a reason.

Posted: 09 May 2014 05:38
by bonnietiler
Just as an aside...if you are prone to filling up with "cheaper" Supermarket fuel then one of the reasons that it is cheaper is the higher content of Ethanol which of course destroys rubber with a passion...Main supplier forecourts are more expensive and one of the reasons is that they do not load the fuel with the afore-mentioned cost cutting additive.
Regards
Bonnietiler

Posted: 09 May 2014 06:27
by UKPhilTR7
I had some new mounts on my car before she went to a garage for some work. When my girl came back they were split. Must of been a mechanic leaning on the carbs, putting pressure on the mounts and splitting them. Try convincing the garage though. Since then I have always put cable ties around the mounts to give them more support.

I was looking into these as an option as I was going to order from someone who also made them. I didn't realise that they would not work as they always needed to be rubber

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Posted: 09 May 2014 06:57
by Chris Turner
I would like to try a pair but the import tax from the US makes them very expensive.

www.triumphtrs.co.uk
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Posted: 09 May 2014 08:10
by Hasbeen
Mildred has tied her carbs to the manifold, sandwiching the rubber mounts, with hose clips I think.

Others have strengthened the mounting with heavy zip ties.

Gluing the rubber, then reinforcing as above should do the trick.

On the other hand I have had SUs & Webbers on solid manifolds on a number of engines, with no problem. Either should work well.

Hasbeen

Posted: 09 May 2014 08:27
by TR Tony
I have heard a couple of TR7 owners in the States give good reports on these mounts.

To import into the UK I reckon it would cost about £140 - £150 at current exchange rates with the extra postage, import duty, VAT & the Post Office handling fee. But then these mounts should last forever, not to mention the saving in time & trouble replacing poor quality rubber mounts.

EDIT might be a bit less as import duty does not apply on items with a value of less than £135. Still have to pay VAT & handling fee though.

Tony
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<font size="1">1981 TR7 FHC Cavalry Blue
1980 TR7V8 DHC Jaguar Regency Red - sadly sold!
1977 TR8 FHC EFI Factory development car Inca Yellow</font id="size1">

Posted: 09 May 2014 09:51
by dursleyman
The Dolomite boys use the alloy mounts with good effect and their owners club sells them for £67.99 pair.

Russ

1980 TR7 Sprint DHC, 1981 TR7 Sprint DHC
Dursley
UK

http://tr7russ.blogspot.co.uk/

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Posted: 09 May 2014 10:38
by MikeRotherham
After seeing Mildred's I'm currently trying this:

http://www.amazon.co.uk/Draper-55592-Ho ... +hose+clip

You just cut to size

Regards

Mike.

Posted: 09 May 2014 15:11
by DutchTriumph
I've fitted something like this to my TR7, no problems at all.

Image

http://www.forum.triumphtr7.com/topic.a ... hichpage=2

Cheers,
Peter

1977 TR7 FHC, 1976 Spitfire 1500

Posted: 09 May 2014 21:16
by supercass
<i>[quote]<i>Originally posted by bonnietiler</i>

Just as an aside...if you are prone to filling up with "cheaper" Supermarket fuel then one of the reasons that it is cheaper is the higher content of Ethanol which of course destroys rubber with a passion.</i>


The ethanol content of fuel has nothing to do with perceived quality. A premium brand (Shell for e.g.)is just as likely to contain similar amounts of ethanol. Suppliers do not have to give the ethanol content which is not helpful for those of us with older cars. Also ethanol destroys many other items such as the delicate circuitry on the fuel level sender unit.
supercass

Posted: 09 May 2014 21:54
by bonnietiler
I'm sure you're absolutely correct I am an idiot
I know nothing about the subject
I shall refrain from further comment

Posted: 09 May 2014 23:45
by Workshop Help
To illustrate someones point in this topic, here is a photo of the two hose clamps holding the carburetor set to the manifold.

Image

For those poor souls with the new bubble-gum carburetor mounts, Please rush out and get two 3" to 4" diameter clamps and secure your carb set in place.

You'll sleep better at night and so will I.

Mildred Hargis

Posted: 10 May 2014 01:41
by FI Spyder
<blockquote id="quote"><font size="1" face="Century Gothic, Verdana, Arial, Helvetica" id="quote">quote:<hr height="1" noshade id="quote"><i>Originally posted by supercass</i>


The ethanol content of fuel has nothing to do with perceived quality. A premium brand (Shell for e.g.)is just as likely to contain similar amounts of ethanol. Suppliers do not have to give the ethanol content which is not helpful for those of us with older cars. Also ethanol destroys many other items such as the delicate circuitry on the fuel level sender unit.
<hr height="1" noshade id="quote"></font id="quote"></blockquote id="quote">

Actually Shell is one of the few local stations that has ethanol free gas (premium). Co-op is another one. This no doubt will vary from locale to locale. Often there are web sites that show which stations are alcohol free and which grade. At least around here.

Websites like these let you know, I'm sure you can find one for your area. There are lots out there.

http://pure-gas.org/index.jsp?stateprov=BC



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Posted: 10 May 2014 05:03
by john 215
Hi,

Our Ethanol content is now as high as 10% here in ' The Old Country ' it not only attack fuel hoses but also metal components in the fuel system, it helps promote corrosion between to dissimilar metal ie. alloy and brass as in carb jets etc. Another slight side effect is because ethanol contains oxygen it actually slightly weekens the mixture. The bad news does not end there, it is also tends to be hydroscopic, it will absorb moisture from the atmosphere, so potentially introducing water into your fuel system and we all know what that does to our fuel tanks only a very small amount granted but it should not be there !

The big brand company's say they only use 5% its the super markets that tend to stick in more, once again you get what you pay for !

Cheers John

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Posted: 10 May 2014 10:56
by UKPhilTR7
I was going to post a picture of the cable ties on my carbs, but thanks to the link posted, I do not have to lol

So the main questions from reading this, is how can we get them over here cheaper, has anyone contacted the guy via his email address and dound the dolly ones be OK for us and how can we get them.

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