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: carburettor oil
PostPosted: Mon Jun 25, 2018 8:14 am 
i have a vague note that oil needs topping up in the carb? if so, any info on what sort of oil, where to fill it etc. tahnks


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 Post subject: Re: carburettor oil
PostPosted: Mon Jun 25, 2018 8:51 am 
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Joined: Sun Oct 26, 2008 7:26 am
Posts: 2473
Engine oil, 20/50 best.
Don't be tempted by thin oil, it doesn't give enough enrichment during acceleration.

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Clive Senior
Brighton


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 Post subject: Re: carburettor oil
PostPosted: Mon Jun 25, 2018 9:00 am 
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Joined: Fri Apr 15, 2016 11:08 am
Posts: 691
Location: Ayrshire, Scotland
The carbs shouldn't need constant topping up as there is nowhere for the oil to go. It is only there as a damping medium. Unscrew the plastic cap on the top and pull the plunger out, then push it back in. If there is resistance to pushing it in, you have enough oil.

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Mike
(1969 MGB GTV8, 1977 Dolomite 1850HL, 1971 MGB roadster now all three on the road)


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 Post subject: Re: carburettor oil
PostPosted: Mon Jun 25, 2018 12:39 pm 
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Future Club member hopefully!
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Joined: Tue Oct 03, 2006 5:52 pm
Posts: 7566
Location: Halifax, West Yorkshire
ATF can be used and one of my CT friends (you'll probably know him Clive. he goes by the name of "Mik") uses a mixture of 20W50 and 3-in-1 in his 1500 racing Spitifre. I believe that SU can supply dashpot oil. None of these recommendations (including the engine oil) are wrong so use whichever works best for you.

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Toledo Man

West Yorkshire Area Organiser & forum moderator
Meetings take place on the first Wednesday of the month at 8.00pm at The Old Brickworks, Wakefield Road, Drighlington, Bradford, BD11 1EA

1972 Dolomite 1850 auto (NYE 751L - Now for sale)
2003 Volvo XC90 D5 SE (PX53 OVZ - The daily driver)
2009 Mercedes-Benz W204 C200 CDI Sport (BJ58 NCV - The 2nd car)
1991 Toyota Celica GT (J481 ONB - another project car)
Former stable of SAY 414M (1974 Toledo), GRH 244D (1966 1300fwd), CDB 324L (1973 1500fwd), GGN 573J (1971 1500fwd), DCP 625S (1977 Dolomite 1300) & LCG 367N (1975 Dolomite Sprint) plus 5 Acclaims and that's just the Triumphs!

Check my blog at http://triumphtoledo.blogspot.com
My YouTube Channel with a bit of Dolomite content.

"There is only one way to avoid criticsm: Do nothing, say nothing and BE nothing." Aristotle


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 Post subject: Re: carburettor oil
PostPosted: Mon Jun 25, 2018 1:53 pm 
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Joined: Thu Oct 05, 2006 9:57 pm
Posts: 768
Location: eastleigh, hants
Just use the SU Dashpot oil, it is not very expensive and should last for ages. I think you can pick up a bottle for about £6.
.

_________________
1973 Triumph Dolomite Sprint
1972 Triumph Stag
1963 Triumph Spitfire 4


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 Post subject: Re: carburettor oil
PostPosted: Mon Jun 25, 2018 2:24 pm 
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Joined: Mon Aug 10, 2015 8:20 pm
Posts: 1293
Location: Shetland / here & there
Hang on a moment, they rarely need topping up? Every car with SU's I've ever had needed topping up regularly and forget using thin machine oil as that used to vanish in no time, what am I doing wrong?!

_________________
Current fleet: '75 Sprint, '73 1850, Daihatsu Fourtrak, Honda CG125, Yamaha Fazer 600, Shetland 570 (yes it's a boat!)

Past fleet: Triumph 2000, Lancia Beta Coupe, BL Mini Clubman, Austin Metro, Vauxhall Cavalier MK1 & MK2, Renault 18 D, Rover 216 GSI, Honda Accord (most expensive car purchase, hated, made out of magnetic metal as only car I've ever been crashed into...4 times), BMW 318, Golf GTi MK3 16v x 3


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