Today's Message Index:
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1. 06:12 AM - 503 oil injection retrofit (Tom Jones)
2. 06:48 AM - Re: 503 oil injection retrofit (Blumax008@aol.com)
3. 02:16 PM - Octane booster (Roger Lee)
4. 09:33 PM - Re: 503 oil injection retrofit (Tony Oldman)
Message 1
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| Subject: | 503 oil injection retrofit |
I want to install an oil injection system on a 503 DCDI. It has an electric starter
on mag end. There is a hole in the center of the cover plate above the starter
that appears to be for the oil pump drive shaft.
This engine I purchased new in 1994 and it has never had an oil injection installed
on it. There are no holes for the injection in the intake manifolds.
I am wondering how big a job it is and what parts I need and where to find them.
--------
Tom Jones
Classic IV
503 Rotax, 72 inch Two blade Warp
Ellensburg, WA
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=276556#276556
Message 2
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| Subject: | Re: 503 oil injection retrofit |
In a message dated 12/7/2009 9:12:57 A.M. Eastern Standard Time,
nahsikhs@elltel.net writes:
I want to install an oil injection system on a 503 DCDI.
Take it from an old hand (very old hand) at ultralights & 2-sicle
motors...DO NOT install an oil drive system. Keep mixing your fuel & oil. It's
much
more reliable & a hell of a lot less trouble. You're just asking for
trouble.
Bill Catalina
Class of '78
Message 3
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Just some info I thought I would pass along.
For those who use these products here are the top two out of 11 that actually do
some of what they claim. Tested by an independent lab.
Both the Nulon Pro Strength and the NF Racing Formula rated the best octane boosters
in our test. And considering that less NF was needed than Nulon, it evens
out a little with a slightly higher cost. Still, both proved extremely effective
at increasing octane, even outranking Toluene, which needs much higher levels
of concentration.
1st NF Octane Booster Racing Formula 250 ml treats 80 litres RRP: $29.95
Octane Improvement: 99.6 (+2.8 RON)
An Australian-made product from Perth, the NF Octane Booster Racing Formula was
the smallest bottle in the field, but looking at the mixing ratio, also the strongest
relying on an incredibly small dose a mere 3 percent! Claiming to increase
octane as much as 6.0 RON , NF took the gold medal in a surprising tie.
If it were a split decision based on concentration though, it would be the clear
winner.
1st Nulon Pro Strength Octane Booster 500 ml treats 60 litres RRP: $20.95
Octane Improvement: 99.6 (+2.8 RON)
The Australian-made Nulon Pro Strength Octane Booster is the top of the range Nulon
fuel product, claiming to boost octane up to seven number. The Pro Strength
gained a joint gold-medal equalling NFs 2.8RON increase.
To conduct these tests we contracted independent laboratory Intertek Testing Services,
who would test our products on a knock engine. We also had to find a base
fuel to add our boosters to so we went to the closest public petrol station,
which happened to be Shell.
--------
Roger Lee
Tucson, Az.
Light Sport Repairman - Maintenance Rated
Rotax Repair Center
520-574-1080
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=276622#276622
Message 4
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| Subject: | Re: 503 oil injection retrofit |
Totaly agree. Keep it simple . Mixe your own fuel.
Regards
Downunder
MK111c
503
----- Original Message -----
From: Blumax008@aol.com
To: rotaxengines-list@matronics.com
Sent: Tuesday, December 08, 2009 3:45 AM
Subject: Re: RotaxEngines-List: 503 oil injection retrofit
In a message dated 12/7/2009 9:12:57 A.M. Eastern Standard Time,
nahsikhs@elltel.net writes:
I want to install an oil injection system on a 503 DCDI.
Take it from an old hand (very old hand) at ultralights & 2-sicle
motors...DO NOT install an oil drive system. Keep mixing your fuel &
oil. It's much more reliable & a hell of a lot less trouble. You're just
asking for trouble.
Bill Catalina
Class of '78
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