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Glass Dome fuel pump

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Glass Dome fuel pump
#1
Pete P Avatar
Pete P
Wenham, MA, USA   USA
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1975 Triumph TR6 "The Green Machine"
As I investigate more about my recent difficulties with cold starts with Weber DGVs (different thread), I would like to ask if this glass domed fuel pump would be the original on the 75 TR6? It has been on the car for as long as I can remember.


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Re: Glass Dome fuel pump
#2
poolboy Avatar
poolboy Silver Member Ken D
Sandy Hook, MS, USA   USA
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No, that's not the kind that came on a TR6 of any year or on TR250 engine.


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ZS carb repairs
kencorsaw@aol.com

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Re: Glass Dome fuel pump
#3
SCTRguy Avatar
SCTRguy Silver Member Jeff F
Irmo, SC, USA   USA
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1959 Triumph TR3A
1963 Triumph TR4
1974 Triumph TR6
1975 Triumph TR6
Hi Pete,

That pump was used on the early GT6, MK1 only I think. Since the TR6 engine was derived from the GT not surprising it will work, but who knows how the specs match up.

Jeff

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Re: Glass Dome fuel pump
#4
poolboy Avatar
poolboy Silver Member Ken D
Sandy Hook, MS, USA   USA
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What carburetors were on that engine, Jeff F ?


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ZS carb repairs
kencorsaw@aol.com

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Re: Glass Dome fuel pump
#5
SCTRguy Avatar
SCTRguy Silver Member Jeff F
Irmo, SC, USA   USA
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1959 Triumph TR3A
1963 Triumph TR4
1974 Triumph TR6
1975 Triumph TR6
The 1967 factory manual says CD 150s with an AC "UG" pump. Probably low on volume for CD 175s.

Jeff

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Re: Glass Dome fuel pump
#6
gfe05111952 Avatar
gfe05111952 George Earwaker
Stuarts Draft, VA, USA   USA
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1967 Triumph GT6
1967 Triumph Spitfire MkII
1968 Triumph Spitfire MkIII
In reply to # 2066137 by Pete P I would like to ask if this glass domed fuel pump would be the original on the 75 TR6? It has been on the car for as long as I can remember.

As that fuel pump has been used on Pete's TR6 for a long time, its fuel output seems to have been adequate even though it wasn't OE. Perhaps a PO had difficulty sourcing the correct pump when needed and that was the best that could be found. FWIW, only the earliest GT6s used that fuel pump. Later GT6s used the same fuel pump as the TR6.
Cheers!
smileys with beer


George
1967 Triumph GT6
1967 Triumph Spitfire4 Mk2
1968 Triumph Spitfire Mk3

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Re: Glass Dome fuel pump
#7
ima68tr Avatar
ima68tr Gold Member Tom Fremont
MILFORD, OH, USA   USA
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1968 Triumph TR250 "Valley Girl"
1968 Triumph TR250 "Jaqueline The Ripper"
I've been using the glass topped pump on my trick engine and it seems to be up to the job. Note that the rebuild kit and spring are the same as for the steel-topped unit commonly found on TR250/6 engines. Also, my first '250 I got in 1976 had this type on it, and I pre-emptively swapped it for a new steel-topped pump before moving to CA from OH.

Both types accommodate 5/16" OD tubing in both inlet and outlet ports. The latter normally gets 1/4" OD tubing with a different nut and ferrule than the inlet side.

So you can use either one; they're interchangeable. I like the glass top because it looks more vintage to my eye.


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Re: Glass Dome fuel pump
#8
Pete P Avatar
Pete P
Wenham, MA, USA   USA
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1975 Triumph TR6 "The Green Machine"
Thanks for all the advice. By the way, the PO was my dad and I don't think he would have changed it. If he did, he would have used the steel topped one as that is probably more readily available.

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Re: Glass Dome fuel pump
#9
bue683 George McCormick
University Place, WA, USA   USA
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Pete, funny you should ask. It is the same fuel pump that is on my 74 TR6 and I have been looking for an original AC brand pump but have not found one. I wonder how the replacement pump Moss sells would work. No rebuild kit available for those though. But at 39 dollars they are relatively cheap to replace if something were to go wrong with it.
For now, I am going with the philosophy that if it's not broke don't fix it.

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Re: Glass Dome fuel pump
#10
Pete P Avatar
Pete P
Wenham, MA, USA   USA
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1975 Triumph TR6 "The Green Machine"
I agree....I have other things to do on the TR but probably will at last clean up the fuel pump this winter. It does look cool.

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Re: Glass Dome fuel pump
#11
ima68tr Avatar
ima68tr Gold Member Tom Fremont
MILFORD, OH, USA   USA
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1968 Triumph TR250 "Valley Girl"
1968 Triumph TR250 "Jaqueline The Ripper"
The glass topped ones are AC brand; see the casting where the tubing threads in.

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