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What's the oil recipe for Dashpot?
https://ausmini.com/forums/viewtopic.php?f=5&t=10144		 Page 1 of 2
Author:  TimB [ Mon Aug 15, 2005 9:45 am ]
Post subject:  What's the oil recipe for Dashpot?
Can anyone tell me the oil recipe for the dashpot?
I read somewhere to use a mixture of sewing machine and engine oil, if so, is sewng machine oil parafin oil?

How do I tell what model SU carb I have when buying a kit?

My stock 1100 is still revving rough and has no power after replacing all the usual service bits.
Author:  marcsvenson [ Mon Aug 15, 2005 12:26 pm ]
Post subject: 
yeh there are lots of different recipes that i have heard but i have also heard that using motor oil the stuff your using to put in the engine is fine
i have been using engine oil with no probs for ages years :!:
it will either be a 1.25 or a 1.5 inch carby
Author:  jill200sx [ Mon Aug 15, 2005 7:22 pm ]
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I always used Singer Sewing machine oil, you can buy it in Woolies/Coles. Comes in handy little bottle with pointy end so you can accurately squirt it in the pot. No mess :)
Author:  drmini in aust [ Mon Aug 15, 2005 7:37 pm ]
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In the past I've use Singer oil, 3 in 1 oil, ATF, 20W/50, sae30, & 2 stroke oil... :shock:

Currently Barney is running hard (twin HS4s) with NOTHING in them.. 8)

Depends what tune your motor is in, what needles, how hot it is, etc.

Try 'em all and use what works. :wink:
Author:  h0nk [ Mon Aug 15, 2005 7:38 pm ]
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Yeh try not to get it everywhere.. I filled it up too much and lifted the needles, spurting oil all over the place.. when I fired up the engine smoke started coming out, the oil spilt on the exhaust manifold was burning :S didn't smell nice
Author:  J_A_M [ Tue Aug 16, 2005 11:01 am ]
Post subject: 
20/50 engine oil in JAM (twin HS2's)....runs sweet! 8)
Author:  joel [ Tue Aug 16, 2005 11:28 am ]
Post subject:  Re: What's the oil recipe for Dashpot?
[quote="TimB"]Can anyone tell me the oil recipe for the dashpot?
I read somewhere to use a mixture of sewing machine and engine oil, if so, is sewng machine oil parafin oil? this is news to me,are the dash pots the containers behind the carb with the black srew tops on them,i was wondering what they were for. :shock:
Author:  Rodney [ Tue Aug 16, 2005 4:25 pm ]
Post subject: 
Yes Joel - thats the one. Unscrew it/them and you should have oil in there.

Hooroo
Author:  poeee [ Tue Aug 16, 2005 4:52 pm ]
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My van was running bad as, I mean REAL BAD!

Well after playing with things on the ignition, replacing almost everything, I decided to pull the carbie down and clean it. I touched no settings at all, just cleaned it. Well put it back together, topped it up with normal engine oil (not exactally sure what was in the oil can, prolly just the cheapest 20w50) and it runs like new again! I wasn't sure what oil was in the thing before, but I can tell you that after cleaning the carb and using engine oil in the dashpot, it fixed ALL problems it had!
Author:  WhoDat [ Tue Aug 16, 2005 8:31 pm ]
Post subject: 
Interesting reading on the subject

http://www.jetlink.net/~okayfine/su/damper.html
Author:  TheMiniMan [ Tue Aug 16, 2005 8:45 pm ]
Post subject: 
most genuine problems with SU carbs,,,(& when i say "Genuine" i mean when there`s absolutely no other problem with the car "BUT" the carb),,,then normally the problem is simply a dirty sticky old piston & bell,,,,easy fix as Poee said,,,a good clean & new oil & away she goes :-)

easy-peasy

but then, there`s allways plenty of other problems with the tune on the average Joe Blow`s minis hey?

so i`ll just shut up now :-)
Author:  drmini in aust [ Tue Aug 16, 2005 8:52 pm ]
Post subject: 
I had 20W/50 oil in Barney's twin Hs4s up until last Friday. I too thought he had a lean stumble just above idle..
however, when we hooked up GR's meter and went for a drive, it turned out he was going rich! Right down to 9 or 10 when I opened the throttle.....
He's good now when hot, around 13 at full throttle- but could be just a little richer during initial acceleration during warmup. I'll tip some ATF or 2 stroke oil in next week for a test. :wink:
Author:  marcsvenson [ Tue Aug 16, 2005 8:54 pm ]
Post subject: 
so whats the secret recipe matt as far as dashpots go is it ok that i just stick motor oil in
Author:  drmini in aust [ Tue Aug 16, 2005 9:01 pm ]
Post subject: 
With 1 carb probably yes. With twins I reckon it's a bit thick.... 8)
Author:  WhoDat [ Tue Aug 16, 2005 9:12 pm ]
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I'm running ATF at the moment - seams fine to me - but I'm interesting in hearing how your tests go Doc
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