2cycle oil??
10-16-11, 11:12 AM
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2cycle oil??
i was told by a guy that im supposed to be running 2 cycle oil in my gas to hhelp the seals...ive never heard of this..am i supposed too or is he just messing with me?
10-16-11, 11:34 AM
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If your Oil metering pump is not working or Disconnected then YES.
The engine in it's stock state will inject some oil from the Oil pan into the Internals and lubricate the seals while combusting/burning gasoline.That lubricates the engine and your seals don't go dry,scrape the sides and then ERRTTT!.Boom!
When you disconnect the OMP,you have to still lubricate the internals,so Putting 2 stroke into the oil is the way to go.
it has to get lubricated some way right?
...
The ratios for oil to gas vary,but a lot of guys will swear by 1 oz per US gallon of gas.(roughly 16 oz per FULL tank)
.Those who still have their OMP working but like to assure themselves that the engine won't Grenade will Premix with ratios such as a 1/2 oz per gallon (or so).
The engine in it's stock state will inject some oil from the Oil pan into the Internals and lubricate the seals while combusting/burning gasoline.That lubricates the engine and your seals don't go dry,scrape the sides and then ERRTTT!.Boom!
When you disconnect the OMP,you have to still lubricate the internals,so Putting 2 stroke into the oil is the way to go.
it has to get lubricated some way right?
...
The ratios for oil to gas vary,but a lot of guys will swear by 1 oz per US gallon of gas.(roughly 16 oz per FULL tank)
.Those who still have their OMP working but like to assure themselves that the engine won't Grenade will Premix with ratios such as a 1/2 oz per gallon (or so).
10-16-11, 10:06 PM
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someone on here stated that running premix is way better than using engine oil. premix burns better and leaves less carbon deposits which equals longer life!
http://fc3spro.com/TECH/FAQ/premix.html
http://fc3spro.com/TECH/FAQ/premix.html
10-16-11, 10:21 PM
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My above reply refers to 2 Stroke oil Premixed into gasoline.( to clarify things).
Engine oil is only used via the OMP.(when the engine is stock)
Engine oil is only used via the OMP.(when the engine is stock)
10-17-11, 04:37 AM
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Sometimes I almost cannot believe some of the things that people say about our cars... A few weeks ago at a job interview, the guy asked me the type of car I drive. I told him, "An 87' Mazda RX-7. I turbo swapped it." He said, "Oh, I am pretty sure that year they came out with a twin-turbo." I just said, "Oh, really? I didn't know that." I couldn't correct him... I probably wouldn't have gotten offered the job. Now that I think of it, I should have corrected him. I turned down the job anyway.
Point is, I get the OP. He is lucky to have come to this forum.
Point is, I get the OP. He is lucky to have come to this forum.
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10-17-11, 03:13 PM
#10
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Indeed putting 2 cycle oil into your gas will help, you can always look to fix or install the metering pump. My 1988 doesn't have one so i've been putting to cycle oil in my gas, but i'm looking to install the electric metering pump that came on 89's and above but for that I need to switch my ECU.
10-17-11, 07:52 PM
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well thanks for all the info guys...since were on the subject how do you check your metering pump? and also its an 86 so i dont off hand recall a gauge or anything for it
10-18-11, 10:18 AM
#15
yep
If your Oil metering pump is not working or Disconnected then YES.
The engine in it's stock state will inject some oil from the Oil pan into the Internals and lubricate the seals while combusting/burning gasoline.That lubricates the engine and your seals don't go dry,scrape the sides and then ERRTTT!.Boom!
When you disconnect the OMP,you have to still lubricate the internals,so Putting 2 stroke into the oil is the way to go.
it has to get lubricated some way right?
...
The ratios for oil to gas vary,but a lot of guys will swear by 1 oz per US gallon of gas.(roughly 16 oz per FULL tank)
.Those who still have their OMP working but like to assure themselves that the engine won't Grenade will Premix with ratios such as a 1/2 oz per gallon (or so).
The engine in it's stock state will inject some oil from the Oil pan into the Internals and lubricate the seals while combusting/burning gasoline.That lubricates the engine and your seals don't go dry,scrape the sides and then ERRTTT!.Boom!
When you disconnect the OMP,you have to still lubricate the internals,so Putting 2 stroke into the oil is the way to go.
it has to get lubricated some way right?
...
The ratios for oil to gas vary,but a lot of guys will swear by 1 oz per US gallon of gas.(roughly 16 oz per FULL tank)
.Those who still have their OMP working but like to assure themselves that the engine won't Grenade will Premix with ratios such as a 1/2 oz per gallon (or so).
10-18-11, 10:41 AM
#16
some people take the lack of lubrication to extremes, the engine won't fail within a mile, a few miles or even a few hundred miles.
i have driven with no OMP and no premix for about 1000 miles once to see what would happen, oddly nothing really did happen. i'm sure the apex seals did wear more rapidly and chatter lines in the housings may have developed but the engine still runs ok 10k miles later.
i have driven with no OMP and no premix for about 1000 miles once to see what would happen, oddly nothing really did happen. i'm sure the apex seals did wear more rapidly and chatter lines in the housings may have developed but the engine still runs ok 10k miles later.
10-18-11, 01:29 PM
#18
If the OMP or MOP(Meetering oil pump) is bad, the car will go into limp mode and you will get a code on the idiot dash (Where the check engine comes on) That will stay on and you will not able to floor the car. When the MOP or OMP dies, it sends a code to the EGI that tells the car not to step on the gas all the way. thus running the car at about 50% Hp. MOPs are expensive brand new. they will run u about 1500$. And if the MOP dies, and you keep driving the car, it will most likely fry that part of the EGI as well and you will need swap that out once you get another MOP. I had this problem with the MOP about two weeks ago and just got it fixed. But anyways, if you are not in Limp mode and can floor the car, then your MOP or OMP is still good.
As far as the premix goes, I believe if you start to premix your car (running without the MOP) and forget to premix on the next fill up you run the chance of damaging the engine. I am not sure if that is correct but I read that somewhere on here.
As far as the premix goes, I believe if you start to premix your car (running without the MOP) and forget to premix on the next fill up you run the chance of damaging the engine. I am not sure if that is correct but I read that somewhere on here.
10-18-11, 01:46 PM
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The only failed metering oil pump I've ever seen out of a lot of engines was the one on my old '78 RX-7 winter beater. The case cracked at the flange. Never have I seen (nor even heard) of a mechanical S4 and earlier style metering oil pump fail. It is the lines that crack, leak and break after 20 years of engine bay heat. The pumps just leak as Karack mentioned.
10-19-11, 03:24 AM
#22
I run premix for the first 3K miles on all my rebuild engines, then by that time I feel it safe to assume the omp is doing it's job. Luckily I've never had to deal with the shenanigans the S5 omp's are known for, I always throw a S4 front cover on all my S5/S4 engine builds. Up until about a year ago, rtek didn't make a S5 2.0+ ecu, so my cars have always been S4 electronics, with S5 blocks and accessories, except a few stock-ish S5 cars and one '90 turbo running a haltec ems, and quite a built engine- it ran no omp, and was 100% premix.
10-19-11, 05:36 AM
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as far as 2 stroke oil what brands are good, ive heard not to use blue or silver colored 2 stroke oils in the gas is this true, and whats good with 4 stroke oil?
10-19-11, 06:40 AM
#24
i dont think it really matters much what brand 2 stroke oil you use. 4 stroke oil isnt made for gasoline. Its made to lube the engine/trans/wetclutch and has different stuff in it so not to damage the wet clutches inside of dirtbikes/quads/whatever else.
