Top Dead Centre Gauge - Alfa Romeo Bulletin Board & Forums
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post #1 of 7 (permalink) Old 08-16-2017, 08:02 PM Thread Starter
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Top Dead Centre Gauge

I'm after a top dead centre gauge (factory tool # C.6.0122) or equivalent for my 105 GTV 2000 (1974).

I can get a dial gauge anywhere however what is less easily determined is the length of the gauge needle.

I thought of using an old park plug and just removing the innards and chopping the top off the plug - but does anyone know of the distance between the top of #1 piston at TDC and the bottom of a spark plug housing? It makes it hard to know what needle length to buy.

Any suggestions?

I did consider http://totallyalfa.com but I think they are no longer in business or their trading has been suspended for a while due to the family ill health of it's owner.


Keywords: TDC ; Top Dead Centre Gauge; Top Dead Center

Last edited by WA-Alfa; 08-16-2017 at 08:05 PM.
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post #2 of 7 (permalink) Old 08-16-2017, 08:14 PM
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I, uh, use a bamboo chopstick.
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Tom

1963 Giulia Spider (1750 engine)
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1991 Spider
Former: 1987 Milano Gold
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post #3 of 7 (permalink) Old 08-16-2017, 08:16 PM
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Here is mine. It works for a range of pistons from flat top Motronics to 10.6 Venolias. The Dial gauge is a slight interference fit in the bottom of the spark plug bore which I think was a Golden Lodge.
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post #4 of 7 (permalink) Old 08-16-2017, 08:23 PM Thread Starter
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Hey that's perfect alfaparticle! Thankyou!

I'll keep the chopstick suggestion as my backup plan
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post #5 of 7 (permalink) Old 08-16-2017, 08:37 PM
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The DTI was made in the same country as the chop stick.

Ed Prytherch
79 Spider
76 Suzuki GT500
2011 Jaguar XKR

A little government and a little luck are necessary in life, but only a fool trusts either of them. - P.J. O'Rourke
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post #6 of 7 (permalink) Old 08-16-2017, 08:46 PM
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i use this way with a vacuum gauge....easy peasy


1969 spider
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post #7 of 7 (permalink) Old 08-16-2017, 08:58 PM
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Quote:
Originally Posted by WA-Alfa View Post
I'm after a top dead centre gauge (factory tool # C.6.0122) or equivalent for my 105 GTV 2000 (1974).

I can get a dial gauge anywhere however what is less easily determined is the length of the gauge needle.

I thought of using an old park plug and just removing the innards and chopping the top off the plug - but does anyone know of the distance between the top of #1 piston at TDC and the bottom of a spark plug housing? It makes it hard to know what needle length to buy.

Any suggestions?

I did consider Aftermarket Tools for your Alfa Romeo TwinSpark, JTS, JTD, V6 and Twin Cam Engines :: TotallyAlfa but I think they are no longer in business or their trading has been suspended for a while due to the family ill health of it's owner.


Keywords: TDC ; Top Dead Centre Gauge; Top Dead Center
I have a C.6.0122 that i will sell if your interested.

1969 1750 Spider Veloce w/dual webers, 1969 1750 Berlina, 1971 1750 Spider Veloce w/ dual webers, 1985 Spider Veloce 23,000 orig. miles, {Two} 1986 Spider Veloces, 1987 Spider Veloce bought new, 1988 Quadrifoglio, 1991 164S, Plus several more. I think they are breeding.
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I just got 2 more. Now I have a Matta. I must be crazy.
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