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This topic comprises 3 pages: 1 2 3
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Author
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Topic: Super Simplex whine
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Will Kutler
Phenomenal Film Handler
Posts: 1506
From: Tucson, AZ, USA
Registered: Feb 2001
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posted 07-10-2001 01:08 PM
Gordon,I have been told over and over again by many old-time Projectionists to never ever use grease on the E-7 gear train. I have a list of oils to be used. I believe 40w ND (non detergent) should be used in the 1040 gearbox. I'll check on the other oils. Remember that the oblique shaft cannot handle platter operation! -The vertical shaft can. Nonetheless, new gears are becomming rare. I have also been told that the oblique geartrain is much tighter than the vertical drivetrain. Remember that it is also very important to purposely reframe the E-7 on a regular basis so that you get even wear on the oblique and shutter shaft gears. Not doing this can lead to premature gear failure, should framing adjustments be necessary during operation. Also insure that the one-shot system is clean and properly working. New check valves, nuts and ferrels are still aviable, and are not expensive. When I got my E-7, both the main and intermediate drive shafts and gear hubs were badly scored due to a lack of lubrication! I have since replaced both shafts. I still need to overbore by gears and press in oillite bearings. This may be going overboard, but it shure will be worth it! Should anyone else be interested in my E-7 mods/ improvements and rebuilds, I can yap at yall later--let me know!
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John Eickhof
Jedi Master Film Handler
Posts: 588
From: Wendell, ID USA
Registered: Jan 2000
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posted 07-10-2001 10:40 PM
Personally, I agree completely with Paul. In the western US with low humidity,I have found that moly grease (ie: Lubriplate, or equiv.) will dry to a consistancy of portland cement. It is usable for a little while, but just like it is used when assembling automobile engines, it is designed to be flushed out by operating oils. As for westrex recommending it for projectors, maybe so, but I have rebuilt many Century heads that had the stuff welded to the gears and could not be chipped off or even soaked off with solvent! Thus, the official
century gear lube is a short fibre light petrolium based lude that will not dry out. Even with that in mind, I still agree with what Larry Little once told me..."A couple drops of light projector oil on the gear faces periodically ia all that is necessary to prevent friction" I was there when Larry rebuilt 8 century G1 (CC) models, they went into an 8 plex that ran 12 hours a day for over 14 years and were lubed only with projector oil! I just saw those same machines in a warehouse in southern Cal. (they were removed a couple of months ago from the 8 plex when it closed) and they were in OUTSTANDING condition! No visible signs of grease anywhere! In fact I was told they were en route to Mexico to serve for many more years! I also think that grease on the gear faces will be condusive to additional dirt and grit retention, where occaisional oiling will clean as well as lubricate the surfaces, and in the case of fibre gears, oil will be absorbed into the material simular to 'oil impregnated' bearings in wide use in projectors. My $.02 worth....------------------
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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John Anastasio
Master Film Handler
Posts: 325
From: Trenton, NJ, USA
Registered: Sep 2000
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posted 07-11-2001 02:13 AM
If the sound drum shaft were at fault, you'd be able to duplicate the sound by spinning the drum. This isn't the case. The projector by itself is very quiet when spun up to speed by itself (I kludged up an attachment to my variable speed drill to spin it up). The soundhead is as quiet as a mouse when run up without the fiber gear connecting it to the projector head. The whine is from the fibre gear. One of the fellows at Wolk informed me that they're machining all the replacement gears for RCA and Simplex to exactly the same pitch and that it's a compromise between the two. The gear is designed to work with either, but runs a bit noisy when installed in a Simplex. Evidently they've got a gear that's available made out of a softer composition material that makes less noise. The advice he gave me was to completely dry out the gear, cinch it up real tight and let it run for a few days to let it settle in, then back it off and give it some grease. Frankly, I'm just going to let it whine. Eventually, it will wear itself into a quieter state (the art of Zen and projector maintenance). As far as lubrication on the rest of the machine is concerned, I just give all the oil fillers a shot every time I run the machine and wipe down anything that's messy. Part of my daily routine involves going down to the screening room and wiping away the cares of the day along with wiping down the Simplex and the Brenkert. The machines stay spotless, the oil stays off the floor, It's 1964 once more, I'm 17 again and hanging out in the booth at the old Baronet....my brother does the same thing with his motorcycle, but it makes a LOT more noise than my Super.
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Will Kutler
Phenomenal Film Handler
Posts: 1506
From: Tucson, AZ, USA
Registered: Feb 2001
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posted 07-11-2001 03:28 PM
Should you not opt for Simplex Oil, then correct oils are as follows:RCA or Simplex soundhead gearbox: 40W-ND (non detergent) Simplex intermittents and gears 5W-30 or 10W-30. I have been told that 15W-30 is too heavy. I have also been told that E-7s are still widly used in Mexico, and that they use ATF in the intermittents. Stay away from that damn grease on the gears!
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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 07-11-2001 10:07 PM
Gordon is correct on the Simplex Soundhead oil - SAE 40 is what the manual specifies.The RCA soundhead manual specifies SAE-30.
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