Please, an opinion needed on a T-51 that we found

[aguirola]

E9 Friends,

I found a T-51 here in El Salvador.
Need it for my 3 DCOE setup.

Attached are the photos, please tell me if OK to buy for $125, which I suppose, it is as it is already here, so no shipping.
Does not appear to be particularly in great condition, but a repaint is easy, and we have the tools to
open any Ate booster and replace the innards that might it require. Also, the pedal link appears to be too long?

Thank you.
Regards, Alberto

 

[JohnP_02]

Alberto, I am no expert, but that doesn’t look right to me. It looks too short/stubby to be a correct bmw 2002 tii booster?

 

[HB Chris]

Looks like the big e9 booster to me.

 

[aguirola]

John, I know, but no idea either. It says T-51 on it, yet ...

 

[aguirola]

Looks like the big e9 booster to me.

Chris is the E9 a T-51 also?

 

[aguirola]

This on ebay...

 

[aguirola]

Besides, there was never an E9 that was junked here...but plenty of '02's

 

[HB Chris]

Chris is the E9 a T-51 also?

Both early pancake style and later fat style are known as T-51.

 

[aguirola]

This what I have in my car...

 

[HB Chris]

Is your coupe a 2800CS? Add it to your signature. I see the early 2800CS pancake booster, the bracket on the left belongs next to fender.

 

[aguirola]

My coupe is a 3.0 SC, US version.
What is the bracket for? I am assuming was always there

 

[aguirola]

PS, what is a Signature?

PPS. Diameter...

 

[aguirola]

Found a smaller diameter on E9 chat, and clearly at least 1" smaller dia.

 

[HB Chris]

PS, what is a Signature?

PPS. Diameter...View attachment 164724

In you profile signature below your post you can add your coupe model and other info. The bracket mounts the end of the booster support to your inner fender.

 

[HB Chris]

Found a smaller diameter on E9 chat, and clearly at least 1" smaller dia.

View attachment 164729

This one has a totally different fitting for the vacuum hose to your manifold, original is plastic and twists into place.

Also:

• Brake booster changes from pancake style to thicker style at 2240222 and 2250146, Master Cylinder diameter changes from 23.8mm to 22.2mm
• I think this is also when the booster mount changed from square metal to round

 

[aguirola]

Thank you Chris! Finally figured out the 'signature bit'

I think, I will let sleeping dogs lie, save $125, and keep the 3 Webers as it always has been.

Kind regards to all!

Alberto

 

[halboyles]

As has been mentioned, there were many variations/sizes of an ATE T51 booster made back in the 60s/70s/80s. Here is a pic for comparison of the stock e9 booster (later, I believe) and the 2002 ti/tii/turbo brake booster.
We, of course, sell the correct tii booster for use on the e9s, rebuilt and modified for a bolt-on solution.

M30/2000CS tii Brake Booster | 2002s Only

That’s right! We have adapted the ATE T51 brake booster used on the 2000CS and 2002tii for use with the E9 brake system. You gain about 1 1/4" of clearance from the intake system. And, because the tii booster is a dual diaphragm version, you loose nothing in vacuum boost. This is the same ATE...

www.2002sonly.com

 

[aguirola]

Thank you Hal!
Now I know where to go. When you mention a core, I assume it is a tii booster?
What is the weight of the booster you provide (shipping)?

Regards, Alberto

 

[halboyles]

When you mention a core, I assume it is a tii booster?

Yes, it would have to be a comparably sized T51 to be useful.
The booster weighs about 15# and we have shipped these world wide. The cart on the web site should give you a close shipping cost. It we can find a equal quality, less expensive way to ship to you, we refund the difference.
Stay well,
Hal