04-26-2023, 07:08 PM | #61 |
Senior Member
Join Date: Feb 2021
Location: Troutman, NC
Posts: 717
|
Re: MMO in the Gas
I have not used Seafoam in my Model A but I have only heard good things about it.
|
04-26-2023, 07:23 PM | #62 |
Senior Member
Join Date: Jun 2016
Location: Arcadia, Ca.
Posts: 254
|
Re: MMO in the Gas
I use it in the gas to attempt to put some kind of layer of oil
to coat the tank. The old timers in my club told me it was good stuff, and I trust them. I also like the smell of it.
__________________
1928 Roadster Pickup 1930 Tudor 1943 Ford WWII Jeep 1968 Taco Minibike Member, Santa Anita Model A's Arcadia Ca. |
Sponsored Links (Register now to hide all advertisements) |
|
04-26-2023, 07:32 PM | #63 |
Senior Member
Join Date: Dec 2014
Location: Germantown,TN
Posts: 521
|
Re: MMO in the Gas
MMO use is wide spread in the antique and classic aircraft community to prevent valve sticking caused by the high lead content in todays 100 octane leaded fuel. Known as AVGAS.
The low or no lead 80 octane is no longer available. MMO is available from aviation supply houses. https://www.aircraftspruce.com/catal...loilgallon.php Be sure to scroll down and read the OVERVIEW Last edited by GPierce; 04-26-2023 at 07:48 PM. |
04-27-2023, 05:07 AM | #64 |
Senior Member
Join Date: Jan 2019
Location: Germany, near Aachen
Posts: 1,159
|
Re: MMO in the Gas
Hey,
please tell me, what's "wintergreen oil"? Thanks in advance, Werner An 1946: Very nice old rare airplane!
__________________
Beste Gruesse aus Deutschland, Werner Ford Model A, Roadster, 1928 Citroen 11 CV, 1947 Hercules W 2000, 1976; (with NSU-Wankel Rotary Engine), Canadian version |
04-27-2023, 07:30 AM | #65 |
BANNED
Join Date: Mar 2022
Location: Chenango Bridge NY
Posts: 433
|
Re: MMO in the Gas
I’m curious to the proven effects. Sure, if you put oil in the fuel it will provide “top end lubrication” but why do you need top end lubrication? We are discussing a simple low compression engine with wide piston rings.. upper cylinder lubrication occurs naturally with it.. oil leakage by the rings is unstoppable.extreme upper cylinder/ combustion chamber temperature which strips this lubrication, and MMO lubrication is mainly caused by the manual spark control, engine timing is almost never correct, especially accelerating. If it makes you feel good do it, petroleum distillates with detergent is handy around the shop.
|
04-27-2023, 09:16 AM | #66 |
Senior Member
Join Date: Oct 2013
Location: SW Iowa, Near Omaha, NE
Posts: 112
|
Re: MMO in the Gas
Sponsored Links (Register now to hide all advertisements)
|
04-27-2023, 10:49 AM | #67 |
Senior Member
Join Date: Jan 2023
Location: Grass Valley, Ca
Posts: 255
|
Re: MMO in the Gas
Top end lubrication usually refers to in-head valves and valvetrain. Ford was one of the last companies to switch over from flatheads. Chevrolet had their in-head valve six cylinder in 1929. Rambler still made flatheads 'till 1965.
__________________
Stickshift 1915 Model T touring 1931 Ford Model AA Flatbed Last edited by stickshift; 04-27-2023 at 11:00 AM. Reason: spelling |
04-27-2023, 11:55 AM | #68 |
BANNED
Join Date: Mar 2022
Location: Chenango Bridge NY
Posts: 433
|
Re: MMO in the Gas
I’m referring to upper cylinder lubrication, a slight amount of mmo in the fuel or a slight amount of oil in the combustion chamber, extending valve seat life, or so they say.. didn’t mean to mislead..in my opinion you could use ATF, it’s a fine distillate with a solvent/ detergent additive..or don’t use anything..
|
04-27-2023, 12:36 PM | #69 | |
Senior Member
Join Date: May 2010
Location: Bucks Co, Pa
Posts: 3,740
|
Re: MMO in the Gas
Quote:
Terry |
|
04-27-2023, 03:55 PM | #70 |
Senior Member
Join Date: Jul 2010
Location: Auckland, New Zealand
Posts: 516
|
Re: MMO in the Gas
Werner, wintergreen oil contains methyl salicylate. An ester of salicylic acid and methanol. It is a good wetting and creeping agent on metals, smells nice and is useful as an embrocation on the human body to relieve pain in tired muscles. It is related to aspirin (acetyl salicylic acid) in the way it works for muscular pain relief.
It also works in the vapor phase to soften hard rubber in articles like go-kart tyres, to give better grip for racing. Possibly made illegal now in the go kart racing fraternity Is that too much information? SAJ in NZ Last edited by SAJ; 05-16-2023 at 04:25 PM. Reason: Added illegal qualifier |
04-29-2023, 12:15 PM | #71 | |
Senior Member
Join Date: May 2010
Location: Santee Calif.
Posts: 515
|
Re: MMO in the Gas
Quote:
|
|
04-30-2023, 11:36 AM | #72 |
Senior Member
Join Date: Jun 2015
Posts: 1,414
|
Re: MMO in the Gas
Some use ZDDP zinc additive for flat tappet motors since zinc is banned from fuels due to catalytic convertor issues with zinc. If there is test data for all these additives, it would be good to see them.
|
04-30-2023, 01:26 PM | #73 |
Senior Member
Join Date: May 2010
Location: Oregon
Posts: 5,993
|
Re: MMO in the Gas
|
05-01-2023, 08:21 AM | #74 |
Senior Member
Join Date: Aug 2011
Location: Illinois
Posts: 730
|
Re: MMO in the Gas
My Grandfather and Father built a corner Gulf gas station before WWII in Boone County, IL. My Father shared stories of how a lot of local car owners would bring their cars in to be "de-carbonized" .. They would tell the owner to give them a day to do the work of taking the head (s) off. Then they would coat the piston tops and the heads with MMO and let it sit overnight. The next morning they would come in and use shop rags to wipe the pistons and heads completely clean . Easy Peezey.... No brass wire brusheswere needed.
|
05-01-2023, 09:05 AM | #75 |
BANNED
Join Date: Mar 2022
Location: Chenango Bridge NY
Posts: 433
|
Re: MMO in the Gas
A teaspoon of un cooked rice sprinkled it no the carb at 1200 rpm decarbonizes in a snap
|
05-01-2023, 11:25 AM | #76 |
Senior Member
Join Date: Jan 2023
Location: Grass Valley, Ca
Posts: 255
|
Re: MMO in the Gas
I heard the same thing about Bon Ami, not sure I would want to try it though.
__________________
Stickshift 1915 Model T touring 1931 Ford Model AA Flatbed |
05-01-2023, 06:06 PM | #77 | |
Senior Member
Join Date: Jun 2014
Location: Melbourne, Australia
Posts: 7,547
|
Re: MMO in the Gas
Quote:
Another way to remove carbon is to spray water in the carburettor intake till the motor stats to miss. Then stop till it runs smooth again. Then, spray again only more till the engine stops. Leave it overnight and when it is run next morning, the carbon will vanish. This works by dampening the carbon and allowing the water to penetrate it before starting the motor. The sudden, extreme heat of combustion causes the water to explosively turn to steam, blowing the carbon off the chamber walls and out the exhaust. Yet another way is remove he head and physically do it but that is hard work.
__________________
I'm part of the only ever generation with an analogue childhood and a digital adulthood. |
|
05-01-2023, 06:21 PM | #78 |
Senior Member
Join Date: Dec 2014
Location: Germantown,TN
Posts: 521
|
Re: MMO in the Gas
A newly rebuilt engine running in as test cell with high crankcase pressure caused by blow-by from rings not seated were cured by a handful of bon-ami thrown into the intake. You could the crankcase pressure drop immediately.
I had an Opel Kadet leaking water into one cylinder while parked. It ran fine. I pulled the head and found exactly what Synchro909 explained; a perfectly cleaned head, valves and piston. Last edited by GPierce; 05-01-2023 at 06:27 PM. |
05-01-2023, 09:07 PM | #79 |
Senior Member
Join Date: Jan 2023
Location: Grass Valley, Ca
Posts: 255
|
Re: MMO in the Gas
This makes sense with the water. I remember in the early to mid-seventies when the oil embargo caused gas prices to go up to 50 cents a gallon. People were hooking up water injection to their engines so they could run cheaper gas. It prevented detonation and improved mileage. I guess kept the cylinders clean too. I don't know why people stopped doing this. I remember seeing the kits in Warshawsky and JC Whitney catalogs.
__________________
Stickshift 1915 Model T touring 1931 Ford Model AA Flatbed Last edited by stickshift; 05-01-2023 at 09:18 PM. |
05-02-2023, 05:04 AM | #80 |
BANNED
Join Date: Mar 2022
Location: Chenango Bridge NY
Posts: 433
|
Re: MMO in the Gas
If you really want to clean it up instead of using water in the vapor draw system use ethanol.. did that on a 400M ford V8.. turned the tail pipe white.. noticeable increase in performance.
|
|
|
Sponsored Links (Register now to hide all advertisements) |
|