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Old 04-14-2016, 09:38 PM   #1
Mylesofsmyles
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Default 240 skinny brake boosters

I'm looking for another skinny brake booster for one of the 240's

I have one that's a 10" dual diaphram. My other, I think is 12" and pancake skinny, single diaphram.

Does anyone have a link to a source for the larger diameter, skinnier booster FOR A 240?
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Old 04-14-2016, 09:40 PM   #2
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Kjets should have you covered.

http://forums.turbobricks.com/showthread.php?t=315323
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how psi stock cna support?

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Old 04-14-2016, 09:42 PM   #3
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Should be a booster from a b23a
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Old 04-14-2016, 09:43 PM   #4
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Quote:
Originally Posted by Redwood Chair View Post

Neither of those are the one...also looking for a reman'd unit
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Old 04-14-2016, 10:02 PM   #5
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Is this the style you're after?

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Old 04-14-2016, 10:04 PM   #6
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Bingo! That's the one!
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Old 04-14-2016, 10:08 PM   #7
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Now I gotta decide if I want to sell it. It's new, not reman'd and I've been hoarding it for my own 16 valve 240 project which I may or may not ever get around to.
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Old 04-14-2016, 10:15 PM   #8
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Originally Posted by hiperfauto View Post
Now I gotta decide if I want to sell it. It's new, not reman'd and I've been hoarding it for my own 16 valve 240 project which I may or may not ever get around to.
We have a 16v project currently underway, which is in need.
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Old 04-14-2016, 10:23 PM   #9
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Why does it need to be this exact style, aesthetics? There's at least 2 other styles of skinny boosters.
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Old 04-14-2016, 10:46 PM   #10
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Originally Posted by hiperfauto View Post
Why does it need to be this exact style, aesthetics? There's at least 2 other styles of skinny boosters.
It's all in the name of clearance.

I've built 16v engines in 240's with a few different manifold styles and I've tried the three booster options I know of.

Both of my personal 16vT cars have slim or skinny boosters. With my shortened b234 manifold, there isn't a skinny enough booster...especially with the Mustang Mastwr Cylinder...the more common 10" isn't skinny enough. The one you posted is certainly ideal.
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Old 04-14-2016, 11:03 PM   #11
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Quote:
Originally Posted by Mylesofsmyles View Post
It's all in the name of clearance.

I've built 16v engines in 240's with a few different manifold styles and I've tried the three booster options I know of.

Both of my personal 16vT cars have slim or skinny boosters. With my shortened b234 manifold, there isn't a skinny enough booster...especially with the Mustang Mastwr Cylinder...the more common 10" isn't skinny enough. The one you posted is certainly ideal.
Out a plenum on that 16v manifold and have plenty of clearance even with the big booster.

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Old 04-14-2016, 11:43 PM   #12
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That's not a b234 manifold...the throttle body clearance is the issue.

Any booster will physically fit around the b234 manifold, shortened or not. It's the throttle body clearance, in stock configuration.

This build is using a shortened b234 manifold. It's a part that's worth the hunt for me.
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Old 04-14-2016, 11:52 PM   #13
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Quote:
Originally Posted by Mylesofsmyles View Post
Should be a booster from a b23a
Early SU carb'd B21A probably?

The later B21As with the Stromberg carb had a regular fat booster.
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Old 04-14-2016, 11:59 PM   #14
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Early SU carb'd B21A probably?

The later B21As with the Stromberg carb had a regular fat booster.
I honestly don't know. I've never seen a factory carb'd 240 in person.
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Old 04-16-2016, 08:57 PM   #15
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Is there a source for a NEW (not reman) booster and OEM master cylinder? I replaced both on my '80, and the second reman booster wont hold vacuum after shutting the engine off, and the master cylinder is leaking from the rear....the MC is an "all new" brake best brand...apparently its total crap... second one ive had, both were junk...
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Old 06-23-2018, 08:40 PM   #16
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Quote:
Originally Posted by hiperfauto View Post
Is this the style you're after?

What model/year does this brake booster come from?
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Old 06-23-2018, 09:06 PM   #17
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Apparently, skinny boosters were available for all 240's '75-'93 although the parts catalog isn't specific about which models used them. I believe that 4 cylinder cars with a single carb used them as well as the V6 cars but I could be wrong.

The part number was updated and you can still get them new through the aftermarket. They're NLA from the dealer.

http://212.247.61.152/us/main.aspx?p...&artno=3516654
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Old 06-23-2018, 11:17 PM   #18
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Looks like the carbed 240 came with 2 different skinny boosters?
According to the pictures in this thread
https://forums.tbforums.com/showthread.php?t=201749
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Old 06-23-2018, 11:26 PM   #19
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Volvo used 2 different suppliers for the skinny boosters, Girling and Bendix (DBA). They are interchangeable AFAIK.

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Old 06-23-2018, 11:37 PM   #20
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I've only seen them on very early 240s ~10 years ago when those cars were still in the yards, but it wasn't worth digging them out and buying them for what people were paying at the time.

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Old 06-24-2018, 12:32 AM   #21
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Hiperfauto, the one you posted was the girling?
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Old 06-24-2018, 01:22 AM   #22
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I'm not sure who made it as there's no name on it anywhere but the parts catalog says the Bendix booster is hot galvanized grey and the Girling booster is painted black or yellow chromated although it looks like Bendix also made some that were yellow chromated as well.

http://forums.turbobricks.com/showthread.php?t=296935
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