Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums - Camaro5.com - View Single Post - Tremec Missed 1-2 shifts, Notchy

Orange Krate · 02-24-2011, 10:48 PM

What is Brass Sintered? Some are saying "CENTERED" which is incorrect spelling.

Brass Sintererd synchros are made with a Bronze powder (added with friction materials) which is sintered onto surface of steel circle, then the circle is fixed on brass ring body. This is apparently the manufacturing process of the tremec transmission for the Camaro. As Rick pointed out previously, the Corvette Tremec transmission is carbon sintered which is much stronger.

It would make since to me that since there is the potential issue of warranty R&R on these low mileage Camaros, it seems that if folks switch out factory transmission gear lube to something like Royal Purple (like I want to do), then there is a chance the dealer will say "you changed the specified lubrication... so sorry but... Warranty VOID." Simply stated customer caused the damage!

I have taken my car in to the dealer to document the grinding and they write on the service ticket..."trans operating within designed specification." Obviously the tech didn't do much of a road test! So... as an owner I essentially have this notation on the car saying I can't shift! BULL TWINKIES!

So my next step is to take my car to a certified high end transmission shop, have them put my car up on the rack crack the fill plug and take a sampling of the actual OE gear oil and send it in for a metallurgical analysis. By doing this we should be able to determine premature transmission wear (brass and or steel materials) and/or failure of the brass sintered rings.

With this in hand and with a statement from the certified transmission specialist we would be better armed to take our warranty claim to the next level if our dealer is not going to work with us.

Regardless of dealer willingness, if the Chevy technician has little or no experience in the peculiarities of the Tremec trans, its specifications and setup, you might as well be going to AAMCO for a rebuild!

Just my two centavos!

By the way, I went to the local Caterpillar (Quinn in So Cal) dealer and picked up an oil analysis kit which is sent to a lab via US Postal Service (postage paid!). It cost me about 25.00. I am doing my sampling this week and will keep you all posted. I figure this is the "Least Invasive" diagnostics outside of the dealership. The results are suppose to be emailed to the sender by the lab.

http://www.quinncompany.com/parts-se...fluid-analysis

VIN: 2G1FT1EW8B9137872
Produced Nov 22, 2010

02-24-2011, 10:48 PM	#244
Orange Krate Not just any car! Drives: Orange Krate DOB - 11/22/2010 Join Date: Oct 2009 Location: Simi Valley, CA Posts: 1,859	Brass "Sintered" Synchros What is Brass Sintered? Some are saying "CENTERED" which is incorrect spelling. Brass Sintererd synchros are made with a Bronze powder (added with friction materials) which is sintered onto surface of steel circle, then the circle is fixed on brass ring body. This is apparently the manufacturing process of the tremec transmission for the Camaro. As Rick pointed out previously, the Corvette Tremec transmission is carbon sintered which is much stronger. It would make since to me that since there is the potential issue of warranty R&R on these low mileage Camaros, it seems that if folks switch out factory transmission gear lube to something like Royal Purple (like I want to do), then there is a chance the dealer will say "you changed the specified lubrication... so sorry but... Warranty VOID." Simply stated customer caused the damage! I have taken my car in to the dealer to document the grinding and they write on the service ticket..."trans operating within designed specification." Obviously the tech didn't do much of a road test! So... as an owner I essentially have this notation on the car saying I can't shift! BULL TWINKIES! So my next step is to take my car to a certified high end transmission shop, have them put my car up on the rack crack the fill plug and take a sampling of the actual OE gear oil and send it in for a metallurgical analysis. By doing this we should be able to determine premature transmission wear (brass and or steel materials) and/or failure of the brass sintered rings. With this in hand and with a statement from the certified transmission specialist we would be better armed to take our warranty claim to the next level if our dealer is not going to work with us. Regardless of dealer willingness, if the Chevy technician has little or no experience in the peculiarities of the Tremec trans, its specifications and setup, you might as well be going to AAMCO for a rebuild! Just my two centavos! By the way, I went to the local Caterpillar (Quinn in So Cal) dealer and picked up an oil analysis kit which is sent to a lab via US Postal Service (postage paid!). It cost me about 25.00. I am doing my sampling this week and will keep you all posted. I figure this is the "Least Invasive" diagnostics outside of the dealership. The results are suppose to be emailed to the sender by the lab. http://www.quinncompany.com/parts-se...fluid-analysis VIN: 2G1FT1EW8B9137872 Produced Nov 22, 2010 __________________ Simi Valley, CA email: jimeads@pacbell.net Last edited by Orange Krate; 02-24-2011 at 11:37 PM.