Never thought I'd be one to say this........but, did you bother to type "damper oil" in the search box in the upper right corner of the page? Search is a wondrous tool and opens the door to a wealth of collected knowledge.
Dennis
Recently purchased a set of round top SU carburetors twin Hitachi HJG 46W. What can i use as damper oil for these carburetors that have been sent dried? WIll 3 in 1 oil work? or can i use 10w 30 nissan motor oil?
Please advise.
Never thought I'd be one to say this........but, did you bother to type "damper oil" in the search box in the upper right corner of the page? Search is a wondrous tool and opens the door to a wealth of collected knowledge.
Dennis
1971 240Z - Original Owner
2010 Infiniti G37 Convertible
3 in 1 seems to go away too quickly. I like using 10W30 engine oil.
I personally use 3-in-1 branded straight 20w motor oil, comes in a convenient little squeeze bottle like the normal 3 in 1 and has a picture of an electric motor on it.
1973 240Z w/ roundtop carbs, 280zx e12-80 distributor, 280zx alternator, late model Altima junkyard electric fans. 115 Blue Metallic & white side stripes.
3-in-one in the blue and white bottle is what I just used, after searching the archives. The outside temperature matters, from all that I read.
1972 240Z #918 New Sight Orange
1977 280Z #305 Light Blue Metallic
1972 240Z #110 Persimmons Red
The damper is simple and you only need to remember 3 things:
1. 30Wt for hot areas, 20Wt for cooler areas (from Mr Matsuo).
2. The oil just dampens the piston from bouncing when going over bumps and from engine vibrations.
3. The oil regulates how fast the piston rises and falls when transitioning throttle.
If the oil is thick, the piston will rise slower and there will be more depression (vacuum/suction) at the bridge and it will pull more fuel from the jet. Think of it as a pseudo- acceleration enrichment circuit. It has the opposite effect on deceleration; with thicker oil it will fall slower and pull less fuel.
There is scarcely anything in the world that some man cannot make a little worse, and sell a little more cheaply.
The person who buys on price alone is this man's lawful prey.
John Ruskin (1819 - 1900)
ZCars in Eastern Canada seaport ready for shipment to Europe
http://ZSportCanada.com
There is scarcely anything in the world that some man cannot make a little worse, and sell a little more cheaply.
The person who buys on price alone is this man's lawful prey.
John Ruskin (1819 - 1900)
ZCars in Eastern Canada seaport ready for shipment to Europe
http://ZSportCanada.com
I have used ATF in my carbs for sooooo long I'm still taking it out of a cardboard can...... These really are the world's crudest shock absorber. I've micced enough of them to say with some assurance that there are two different sizes of pucks......so as you are fiddling for your solution play on......
ATF works horrible for me. I've run 20wt motorcycle oil with best effect.
1973 240z w/ ztherapy round top conversion.
Bryan Pilati
1971 Datsun 240Z (8/71; 920 paint)
IZCC #583; TZCC #16; CZC #110
I'm never serious unless I should be.
What about using 3 in one multipurpose oil? Will it work? I dont seem to find 3 in one motor oil here in Panama. Just this one:
3-IN-ONE Multi-Purpose Oil | Household Oil | Lubricate Bikes, Guns & More
That's not 20 weight, Amazon.com: 3-IN-ONE 10045 Motor Oil, 3 oz. (Pack of 1): Industrial & Scientific
1972 240Z #918 New Sight Orange
1977 280Z #305 Light Blue Metallic
1972 240Z #110 Persimmons Red
Bryan Pilati
1971 Datsun 240Z (8/71; 920 paint)
IZCC #583; TZCC #16; CZC #110
I'm never serious unless I should be.
There are currently 1 users browsing this thread. (0 members and 1 guests)
Bookmarks