Public Service Announcement : Check your OMP!
#1
Passenger
Posts: n/a
Public Service Announcement : Check your OMP!
just a friendly reminder, do as Wilford Brimly suggests: check your OMP and check it often.
i was playing under the hood of my car and noticed mine wasn't working. the lines were plugged up! i had to soak them in the parts washer for an hour to get them flowing properly again. sometime in the past 500 miles it quit working. last fall was the last time i checked the actual flow. hum, i wonder how much that shortened the life of my engine.
i was playing under the hood of my car and noticed mine wasn't working. the lines were plugged up! i had to soak them in the parts washer for an hour to get them flowing properly again. sometime in the past 500 miles it quit working. last fall was the last time i checked the actual flow. hum, i wonder how much that shortened the life of my engine.
#4
Rotary Freak
iTrader: (1)
Join Date: Feb 2002
Location: NJ
Posts: 2,693
Likes: 0
Received 0 Likes
on
0 Posts
For all those who premix - Does it inhibit performance at all? Does it smoke more? Does it hurt the exhaust or damage something else in the engine? Will it go through inspection ok? And finally, how do you mix it - just dump in the correct amount after filling it up? Sorry if these questions seem stupid, I'm just curious and want to make my new engine last a long time. Thanks.
#5
Hunting Skylines
Join Date: Apr 2001
Location: Brisbane, Queensland, Australia.
Posts: 3,431
Likes: 0
Received 2 Likes
on
2 Posts
Alright.
1. It doesn't inhibit performance in any way.
2. Depending on the type of oil and pre-mix ratio it shouldn't really smoke it all. Two stroke oils usually burn pretty clean.
3. No, why would it. Pre-mixing is just another way of introducing oil into the combustion chamber except it's not dirty crank-case oil like you inject with the OMP.
4. I dunno.
5. You dump the oil in before you fill up. That way it mixes properly. I always put in 200ml of oil and 25litres of fuel for a 1:125 ratio. Simple. Or as peejay said 1 ounce of oil per gallon of fuel for you yanks.
1. It doesn't inhibit performance in any way.
2. Depending on the type of oil and pre-mix ratio it shouldn't really smoke it all. Two stroke oils usually burn pretty clean.
3. No, why would it. Pre-mixing is just another way of introducing oil into the combustion chamber except it's not dirty crank-case oil like you inject with the OMP.
4. I dunno.
5. You dump the oil in before you fill up. That way it mixes properly. I always put in 200ml of oil and 25litres of fuel for a 1:125 ratio. Simple. Or as peejay said 1 ounce of oil per gallon of fuel for you yanks.
Trending Topics
#9
I read your email
Worth it? Unless you're made of money, cancel that order! Rebuild it! If it's bad I guarantee it's just the rubber seals. I bought a kit for less than 20 bucks and it was a no-brainer to fix.
#10
Senior Member
Join Date: Mar 2002
Location: Okotoks, AB, Canada
Posts: 359
Likes: 0
Received 0 Likes
on
0 Posts
You could probably find an OMP ona junker in a scrap yard, pull it apart, clean it up and fix it, chances are your saving youself a SHIAT load of money.
cheers'
cheers'
#11
I read your email
For OMP rebuild info, check out this page:
http://www.mazspeed.com/oilmeteringpump.htm
Then call Mike Lowe of Lowe Performance Automotive at (941) 924-8597 or see the Lowe Performance web site, www.loweperformance.com
Mike will set ya up!
http://www.mazspeed.com/oilmeteringpump.htm
Then call Mike Lowe of Lowe Performance Automotive at (941) 924-8597 or see the Lowe Performance web site, www.loweperformance.com
Mike will set ya up!
#13
Isn't there a risk that the oil would gum up the carb, I mean it doesn't usually flow through the needle & seat, out the jets, etc... it's metered directly into the air flow.
Also, how does it effect the fuel filter.. won't it gum that up too?
Also, how does it effect the fuel filter.. won't it gum that up too?
#14
Keep in mind it is premix oil - engineered to flow through filters and carbs, then cool and lubricate the chamber when it gets there and not have any ill effects on combustion.
#15
Hunting Skylines
Join Date: Apr 2001
Location: Brisbane, Queensland, Australia.
Posts: 3,431
Likes: 0
Received 2 Likes
on
2 Posts
Originally posted by Smeagol
Has anyone completely blocked off their OMP, running only premix?
Has anyone completely blocked off their OMP, running only premix?
#17
I read your email
Originally posted by rx7gslse
WHat's the best procedure for checking the OMP?
WHat's the best procedure for checking the OMP?
Hope this helps.
#19
Old [Sch|F]ool
When I bought my '80 I drove it for 2000 miles and thought it was strange that the engine wasn't using any oil. Checked the OMP output and it was putting out zero oil whatsoever. (Not leaking, either - just no output) For the next 28,000mi the engine ran exclusively on premix. Have no idea how long the PO drove it with the OMP inoperative, but I did notice that the car came with a can of starting fluid in the back I never had a problem with it though...
#20
you say you're going to premix 1 oz/gallon, so do you add the oil after you fill the tank or before... you would probably get a better mix if you added before the fill up, but how do you know then how much gas you're going to add?
#21
Old [Sch|F]ool
Add it before.
There's nothing to it really... if you have an SA, buy the 8-ounce bottles and fill up when the needle's a little above E, if you have an FB, buy the 16-ounce bottles are run it until the needle's just below E. It's not rocket science to get it exact... usually I'd end up putting 8oz in with 12 gallons. It's still richer than the OMP puts out under most conditions.
There's nothing to it really... if you have an SA, buy the 8-ounce bottles and fill up when the needle's a little above E, if you have an FB, buy the 16-ounce bottles are run it until the needle's just below E. It's not rocket science to get it exact... usually I'd end up putting 8oz in with 12 gallons. It's still richer than the OMP puts out under most conditions.
#22
Senior Member
Join Date: Aug 2001
Location: Fort McMurray, Alberta
Posts: 723
Received 0 Likes
on
0 Posts
I had been looking at getting one of these to replace my OMP, then the other day I realised that it goes in between the block and the OMP because I can only see an inlet (for the 2-stroke), am I right? So I guess it's not really worth it, execpt precision, and simplicity.... anyone have one?
#23
Rotary Freak
garfinkle has one on his 94 .he made a tank that sits between the airbox and intercooler. the omp hit the turbo and had to be modified in some way as I remember. he uses amsol 2 cycle oil
#24
EliteHardcoreCannuckSquad
Join Date: May 2001
Location: Acton, Ontario, Canada
Posts: 4,126
Likes: 0
Received 4 Likes
on
4 Posts
I just dump a bottle of MMO in my tank at every fill-up...
I wanna add one of those this year. The major advantage to it is that I'd be able to burn MMO (or 2 stroke), and run Sythetic in the engine.
Better for the engine all-around...
Originally posted by NanaimoRx-7
I had been looking at getting one of these to replace my OMP, then the other day I realised that it goes in between the block and the OMP because I can only see an inlet (for the 2-stroke), am I right? So I guess it's not really worth it, execpt precision, and simplicity.... anyone have one?
I had been looking at getting one of these to replace my OMP, then the other day I realised that it goes in between the block and the OMP because I can only see an inlet (for the 2-stroke), am I right? So I guess it's not really worth it, execpt precision, and simplicity.... anyone have one?
Better for the engine all-around...
Last edited by smnc; 04-25-02 at 04:47 AM.
Thread
Thread Starter
Forum
Replies
Last Post
rgordon1979
3rd Generation Specific (1993-2002)
40
03-15-22 12:04 PM
Jeff20B
1st Generation Specific (1979-1985)
73
09-16-18 07:16 PM
[For Sale] Scratch & Dent, Used, and Open-Box Sale!
SakeBomb Garage
Vendor Classifieds
5
08-09-18 05:54 PM