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Author Topic: Brenkert projector oil
Buck Wilson
Jedi Master Film Handler

Posts: 894
From: St. Joseph MO, USA
Registered: Sep 2010


 - posted 08-17-2014 02:12 PM      Profile for Buck Wilson   Email Buck Wilson   Send New Private Message       Edit/Delete Post 
ATF will not ruin seals. If you have a problem with more leaks after switching to it, it's only because the high detergent base has cleaned out a pre-existing but possibly clogged with gunk leak with already bad seals.

There are a number of manual transmissions in cars(Read: gears) that even call for ATF.

Dexron VI is the best on the market

I hadn't heard of using ATF in projectors, but it is certainly worth a shot and I would try it myself. Having heard of this, I'll likely use it to re-start my Prevost P-55s after sitting for a decade. Would work great to de-gel them. That said, I'm not sure I'd leave such a thin, high detergent fluid in a projector on an extended long-term basis, unless the projector sounds very happy with it.

Millions of dollars have been invested in engineering certain ATF like Dex 6. Very high quality lubricant.

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Steve Matz
Jedi Master Film Handler

Posts: 672
From: Billings, Montana, USA
Registered: Sep 2003


 - posted 08-17-2014 10:43 PM      Profile for Steve Matz   Email Steve Matz   Send New Private Message       Edit/Delete Post 
This is unrelated to Projector Oils but since we are talking about BRENKERT;This info from Bob Sprague was rather interesting to BRENKERT Buffs. BRENKERT Projector heads supposedly cost more than the Competition but he points out that the 2 Largest Theaters in Chicago "THE UPTOWN"(4500seats) and "THE CHICAGO THEATER(4100seats) both used BRENKERT Equipment. Wait a minute this is MOTIOGRAPH,DEVRY Territory;what is this DETROIT Guy doing on our Turf. [Confused]

Also BRENKERT had thought about MFGing Soundheads,but never did.After 1938 All BRENKERT Equipment was sold only through RCA Theater Supply Dealers...

RCA 200 Projectors(1953) are CENTURY C Mechanisms...

RCA ARC-LAMPS-"BRITE-ARC","LINE-ARC","HY-ARC" and "DYN-ARC" sold in 1953-54 were made by ASHCRAFT...

RCA "STANDARD LINE" Projector and Soundhead in 1954-55 were made by WENZEL...

RCA "ALL AMERICAN" Picture & Sound from 1955-56 were made by SETTLES...

And something that even surprised me...Some CENTURY Built VISTAVISION(8-per Fram)Horizontal Projectors were retrofitted to use BRENKERT Intermittents in place of Official CENTURY Intermittents...

I thought you should all know about this [Roll Eyes] [beer]

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Jim Billek
Film Handler

Posts: 6
From: Phillips, WI, USA
Registered: Nov 2002


 - posted 08-17-2014 10:49 PM      Profile for Jim Billek   Email Jim Billek   Send New Private Message       Edit/Delete Post 
I do appreciate all the info. Since the thread did sort of move into Brenkert history, If I am not breaking rules too badly. Instead of starting a new thread I am wondering if Brenkert intermittents are interchangeable between models.

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Steve Matz
Jedi Master Film Handler

Posts: 672
From: Billings, Montana, USA
Registered: Sep 2003


 - posted 08-18-2014 01:38 AM      Profile for Steve Matz   Email Steve Matz   Send New Private Message       Edit/Delete Post 
Yes Jim; The BX80 BX60 BX40 and RCA100(BX100)All use the same
intermittent. P.N.X-3107(complete intermittent assembly) I looked
in all 4 different Model Manuals I have. It must have been a well
designed Unit to carry it over through the whole Brenkert Line from 1939(BX80)to the BX100(1950) [beer]

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Steve Matz
Jedi Master Film Handler

Posts: 672
From: Billings, Montana, USA
Registered: Sep 2003


 - posted 08-18-2014 12:50 PM      Profile for Steve Matz   Email Steve Matz   Send New Private Message       Edit/Delete Post 
quote: Buck Wilson
There are a number of manual transmissions in cars(Read: gears) that even call for ATF.
Well it never called for it or recommended anything but gear lube but the BORG WARNER SUPER T-1O 4Speed in that old Vette of mine on the "What Car do you Drive" thread had DEXRON 2 in it. After I put the Hotrodded BB in;I wanted a faster shifting Transmission. When those gears are in a Fluid where their not being dragged down from overly thick lubrication;Its like a whole new Tranny. It shifted like a Modern day non-linkage TREMEC and I never had any heat issues or part failures even at 7000rpm shift points

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Buck Wilson
Jedi Master Film Handler

Posts: 894
From: St. Joseph MO, USA
Registered: Sep 2010


 - posted 08-19-2014 01:25 AM      Profile for Buck Wilson   Email Buck Wilson   Send New Private Message       Edit/Delete Post 
Know that from experience as well, but in not nearly as cool of a car.(Ford Festiva)

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Steve Matz
Jedi Master Film Handler

Posts: 672
From: Billings, Montana, USA
Registered: Sep 2003


 - posted 08-19-2014 02:56 AM      Profile for Steve Matz   Email Steve Matz   Send New Private Message       Edit/Delete Post 
HEY BUCK; I just bought the DVD "PAPER MOON" Ryan & Tatum O'Neal. Watched The Version with Bogdonovich doing the Commentary. He said a lot of those Street Scenes were shot in St Joseph. Back in the 80's I bought CLASS B FIREWORKS from a Distributor named SCHNEIDER'S FIREWORKS(PYROTECHNICS) Wonder if their still Going... [beer]

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Mark Gulbrandsen
Resident Trollmaster

Posts: 16657
From: Music City
Registered: Jun 99


 - posted 08-19-2014 10:34 AM      Profile for Mark Gulbrandsen   Email Mark Gulbrandsen   Send New Private Message       Edit/Delete Post 
quote: Buck Wilson
ATF will not ruin seals. If you have a problem with more leaks after switching to it, it's only because the high detergent base has cleaned out a pre-existing but possibly clogged with gunk leak with already bad seals.
Normally. I would agree except in the case of all the leaky Pro-35's several of them had been overhauled with brand new o rings and seals. These projectors did not leak a drop running oil the first several months. After "he" switched them over to Dexron it wasn't more than a couple months before the leaks ensued. A few were so bad they had to oil dry and mop the floor regularly. Projectors are designed for non detergent lubes. While Dexron is fine for transmissions it is not fine for a projector. All the Pro 35's finally had to be pulled out of service just because the amount of leakage was so bad.

Mark

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Ed Inman
Expert Film Handler

Posts: 103
From: Jackson, Mississippi USA
Registered: Jul 2004


 - posted 08-19-2014 05:29 PM      Profile for Ed Inman   Author's Homepage   Email Ed Inman   Send New Private Message       Edit/Delete Post 
Since the name brand projector oils are being discontinued, what do you folks think about MOBIL VELOCITE SPINDLE OIL? I see it readily available on ebay and Amazon. Is it suitable as an intermittent or general projector lubrication oil? Also, should I use #10 or #6 (or does it matter)? thanks--Ed

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Steve Matz
Jedi Master Film Handler

Posts: 672
From: Billings, Montana, USA
Registered: Sep 2003


 - posted 08-19-2014 07:27 PM      Profile for Steve Matz   Email Steve Matz   Send New Private Message       Edit/Delete Post 
8509(1997)
Product Data Sheet

Mobil Velocite Oil Numbered Series

High Speed Spindle and Hydraulic Oils
Product Description

The Mobil Velocite Oils are a range of high quality light viscosity lubricants for high speed machine tool
spindles and hydraulic applications.

Mobil Velocite Oil No. 3 is made from a light petroleum solvent refined mineral oil and an oxidation inhibitor.

Mobil Velocite Oil No. 6 and No. 10 are made from light viscosity solvent refined mineral oils, oxidation
inhibitors and a rust inhibitor and a defoamant. Some anti-wear protection is also provided.

Benefits
The Mobil Velocite Oils offer the following benefits:
• Protection against wear
• Good hydraulic performance
• Resistant to oxidation and degradation products
• Protection against rust and corrosion
• Low spindle wear
• Maintained high precision
• Minimum scrap and off-sized components
• Long trouble-free life
Applications

The Mobil Velocite Oils are recommended for lubricating high speed machine tool spindles.

Mobil Velocite Oil No. 3 is recommended for the ‘zero clearance’ type of spindle bearing which operates with
extremely close clearances - which may be no more that 0.0001" per inch of arbor diameter.

The majority of sleeve type spindle bearings have greater clearances and for these Mobil Velocite Oil No. 4,
No. 6 and No. 10 are recommended. Choice of viscosity depends upon relationship between clearance and
spindle speed. High speed and close clearance require Mobil Velocite Oil No. 4 - slower speed and wider
clearance require Mobil Velocite Oil No. 10
Mobil Velocite Oil No. 3 is also recommended for use in EDM applications where its low viscosity and electrical
characteristics, together with resistance to degradation, make it an ideal cooling and flushing medium.

Mobil Velocite Oil No. 6 and No. 10 are also suitable for use in hydraulic systems that do not require ‘anti-wear’
oils.

8509(1997)
Properties
All these oils contain oxidation inhibiting materials enabling them to resist the production of deposits and
degradation materials under the high speed - extremely thin film - oxidation prone conditions under which they
work.

In addition Mobil Velocite Oil No. 6 and No. 10 contain a rust inhibitor making them suitable for intricate and
critical hydraulic systems requiring a light oil. Both have excellent chemical stability, resistance to oxidation and
formation of degradation products and contain a defoamant. They have a high viscosity index and separate
readily from water.

Health and Safety
Based on available toxicological information, it has been determined that this product poses no significant
health risk when used and handled properly.
Details on handling, as well as health and safety information, can be found in the Material Safety Data Bulletin
which can be obtained through Mobil Oil Company Ltd., by telephoning 01372 22 2000.

Typical physical characteristics are given in the table. These are intended as a guide to industry and are not
necessarily manufacturing or marketing specifications.
Product Characteristics
Mobil Velocite Oil No. 3 No. 4 No. 6 No. 10
ISO Viscosity Grade 2 5 10 22
Viscosity, cSt at 40°C 2.0/2.4 4.8 10.0 22.0
Viscosity, cSt at 100°C - 1.63 2.6 4.1
Viscosity Index - - 95 95
Flash Point, °C COC 76 114 154 174
Pour Point , °C -30 -24 -30 -27

probably as good as anything out there. I'm sure it won't damage an intermittent...

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Steve Matz
Jedi Master Film Handler

Posts: 672
From: Billings, Montana, USA
Registered: Sep 2003


 - posted 08-20-2014 01:02 AM      Profile for Steve Matz   Email Steve Matz   Send New Private Message       Edit/Delete Post 
Mobil Velocite Oil No. 3 is recommended for the ‘zero clearance’ type of spindle bearing which operates with
extremely close clearances - which may be no more that 0.0001" per inch of arbor diameter.

Since an Intermittent is a precision piece and its components
are generally machined to 1/10thousands of an inch tolerances. Perhaps the #3 lube would be a good choice...

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Ed Inman
Expert Film Handler

Posts: 103
From: Jackson, Mississippi USA
Registered: Jul 2004


 - posted 08-20-2014 08:36 AM      Profile for Ed Inman   Author's Homepage   Email Ed Inman   Send New Private Message       Edit/Delete Post 
I have a bottle of the #10. In terms of viscosity it appears to be as light weight (or perhaps lighter) than my old bottle of Lavezzi Intermittent Oil. Pours pretty much like water with no resistance at all.

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Jack Ondracek
Film God

Posts: 2348
From: Port Orchard, WA, USA
Registered: Oct 2002


 - posted 08-20-2014 11:28 AM      Profile for Jack Ondracek   Author's Homepage   Email Jack Ondracek   Send New Private Message       Edit/Delete Post 
You guys are probably not going to like this, but...

A friend of mine ran non-detergent 30-weight, purchased at the local gas station, in his Century C intermittents for over 60 years. When those projectors were taken out for digital, they were still among the most stable I've seen.

You can imagine what he'd say about an intermittent oil debate.

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Gordon McLeod
Film God

Posts: 9532
From: Toronto Ontario Canada
Registered: Jun 99


 - posted 08-20-2014 11:32 AM      Profile for Gordon McLeod   Email Gordon McLeod   Send New Private Message       Edit/Delete Post 
Not suprising that he had no issues the original Simplex/Century oil was No 20 non detergent

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Steve Matz
Jedi Master Film Handler

Posts: 672
From: Billings, Montana, USA
Registered: Sep 2003


 - posted 08-20-2014 11:58 AM      Profile for Steve Matz   Email Steve Matz   Send New Private Message       Edit/Delete Post 
I think this oil issue is overkill. An intermittent is not even turning close to 2000rpm; so the heat issue compared to say parts in an automotive engine turning 3 times that speed is negligible.All were trying to do here is maintain a thin protective film barrier between metal surfaces.I doubt any of the oils/products mentioned on this thread are going to hurt/damage that intermittent as long as this protective barrier is maintained. Neoprene Seals,O-Rings,have been around forever and ATF,PETROLEUM OIL,ETC. should have no effect on them as far as deterioration,Shrinking,etc.

The people that are complaining most about using another product instead of OEM oil that came in the Projector/intermittent are only worried about the Loss in sales they will incur because the customer found another cheaper alternative that works just as well...

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