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This topic comprises 4 pages: 1 2 3 4
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Topic: Simplex Oil/Lube Questions
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John Eickhof
Jedi Master Film Handler

Posts: 588
From: Wendell, ID USA
Registered: Jan 2000
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posted 01-28-2001 10:28 PM
Mark, Yes, the advantages of synthetic are good when you consider it being contained for exrented periods of time, however, as you know, drop-by-drop oiling daily in older machines tends to use a larger amount of oil as opposed to contained oiling systems, thus if you follow manufacturer's recommendations and change the oil in intermittents every 6 months rebuilds are quite seldom as metal / build up deposits are eliminated, using synthetics for long periods of time do not allow flushing of damaging materials, thus wear will naturally occur too. It's like changing the oil in an aout engine every 3000 miles with petrolium oil and removing the hydrocarbons and other pollutants every oil change, it has been proven that oilchanges on less frequent intervals with synthetics have indeed caused more wear by retaining hydrocarbons in the lubricant. So, it actually is a waste of money and material to use synthetics in a device that the lubricant is allowed to flow out of like open 'oilite' bushings in projectors. I say keep the original style oil as long as you are hand oiling anyway, its just as effective and a lot less expensive! All manufacturers (except christie) recommend intermittent oil changes at regular intervals! That's why most old style intermittents are still running and a large number of 'ultramittents' break down within two or three years of use! Sorry, but I hold fast on this by experience....even Motiograph recommended changing lube twice a year! I can't expect even the best synthetic or regular oil to last indefinitely without some failure as inevitable!------------------ John Eickhof President, Chief Slave Northwest Theatre Equipment Co., Inc. P.O.Box 258 Wendell, ID. 83355-0258 208-536-5489 email: jeickhof@nteequip.com
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Mark Gulbrandsen
Resident Trollmaster

Posts: 16657
From: Music City
Registered: Jun 99
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posted 01-29-2001 04:33 PM
John, While I definately do not reccommend using it in a projector that has seen years of standard oil, as this type of machine already has seen the effects of using the standard oil, I do reccomend it in a machine that has been completely rebuilt or in an intermittent that has just been overhauled, even in a Super or E-7!. Once you understand the advantages of synthetic and take into account that the LaVezzi Oil permeates the metal which regular oil does not it only makes sense. Since there is so little oil in most machines, regular oil will tend to break down before the three months oil change is up, especially when running with larger lamps. There may be an exception to this in machines that hold a quantity of oil like say a DP-70. Here, regular oil will last longer, and take longer to break down due to the quantity, but most machines, and or movements only hold several ounces. Here, synthetics go much longer before they break down or start to get acedic, sometimes it can be 3 to 4 times the life before this breakdown starts. I still advocate changes at regular intervals even with synthetic as specified by the manufacturer. However in the case of using synthetic over regular oil the difference in wear between normal interval changes will be far less than with using regular oil. Also coating all parts before re-assembley with synthetic makes working on it much easier in the future as it will still be there and allow the parts to slide apart easily. Mark @ GTS Machines that I have used it for a long time in....... XL's, 35mm and 35/70 Simplex E-7 Norelco DP-70/AA-2 Kalee Century Cinemeccanicas Bauer U-2P.S. When I had my Dodge V-10 I got an extra 2.5 to 3 mpg just by switching to synthetic!!
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Paul G. Thompson
The Weenie Man

Posts: 4718
From: Mount Vernon WA USA
Registered: Nov 2000
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posted 01-30-2001 11:47 AM
Barry, I agree with Mark. Another thing that may have happened is someone used a mounting bolt that was too long and may have fractured the main casting of the projector. Another thing to look at is the non-operating side gear cover itself. Through the years, the slots get so distorted from over-tightening that it is impossible for the gasket to seat properly. One question, though - after the machine sets over night, how much oil remains in the machine? Does it all drain out? If so, I would suspect a fractured casting, or the sight glass leaks like the devil. Harry, that gear is a booger to change. If it doesn't seem to get any worse, probably is just best to leave it alone, and just keep it lubed. Are you absolutely sure that is where the gear whine is coming from? Is there a chance you could have an RCA gear driving a Simplex gear? They really will whine. Also, if it is the gear you suspect is whining, it may have been due to running in grease too long. Every gear I changed in a Super or E-7 was greased. That should say something...  Jack, I question the 10W40 oil you are using in the sound head. It may attack the rubber on the rag coupling, but I am not too sure on that one. Also, it could attack some of the wiring you have in the sound head, too.
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This topic comprises 4 pages: 1 2 3 4
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