Brake Booster parts missing? lookie here? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

72 longhorn BB · 09-22-2005, 08:24 AM

Hey there gang,
when I was refurbishing the brake booster, I took off the rear boot and this packing fell out, along with a star washer.

Looking into the rear end of the booster, I can not tell how the packing and star washer are used.

Am I missing some parts?

Thanks ahead of time

sneakysnake · 09-22-2005, 11:44 AM

Is this a new booster or the old one? The star washer should be a retainer for the felt washer. but if you look close in the pic the booster looks to have one allready, or should go on top of that one

Americanrider · 09-22-2005, 12:39 PM

The same thing happend to me when I was cleaning up an old booster to paint. I re-installed the felt, put the star washer on top and sild a new boot over it. then I secured it with a zip-tie. It worked when I put it back on the truck. I'm not sure what holds that star washer in there other than vacuum.

cheyenne10 · 09-23-2005, 12:47 AM

Where can I get a new boot like that? Old ones get real rotten.

Americanrider · 09-23-2005, 03:01 AM

I stole that rubber boot from a 91 Buick hydro-boost setup. If you hunt the yards they can be found.

HeavyD · 09-23-2005, 04:59 AM

I bought one from Scott's Super Trucks so most vendors should carry them.

Americanrider · 09-24-2005, 03:37 AM

I'm guessing that it keeps dust & crud out of the vacuum chamber.... maybe they are called "Dust-boots" for that reason.

72 longhorn BB · 09-28-2005, 12:37 PM

See the picture with the star washer laying next to the new and old boots?

I can not figure out what IT could be used for. Why would it be a star washer and not just a simple flat washer if it did not have a special purpose?

The problem was when I took off the boot and removed the round fiber pad, the foam and washer fell out in my hands!

I'm not sure what the replacement structure should look like, not to mention why there was a star washer in there?

Any thoughts related to the TOPIC?

tomatocity · 09-29-2005, 01:04 AM

I plan on removing mine soon and would like to knowmore about these parts.

jlmtrout · 09-24-2005, 07:43 AM

You'll have an open hole in the firewall, make it harder to cool and heat, plus let more fumes in. Good luck and keep on truckin'............Jerry

tomatocity · 09-24-2005, 02:40 AM

Quote:

Originally Posted by rick980

NO really what if you dont replace it?

The rubber that is.
pregnency or STD's come to mind. (late Friday night humor or an attempt at it).

09-22-2005, 08:24 AM	#1
72 longhorn BB Registered User Join Date: Jan 2000 Location: Michigan Posts: 312	Brake Booster parts missing? lookie here? Hey there gang, when I was refurbishing the brake booster, I took off the rear boot and this packing fell out, along with a star washer. Looking into the rear end of the booster, I can not tell how the packing and star washer are used. Am I missing some parts? Thanks ahead of time __________________ Chuck 1972 C-20 Longhorn 402 BB .030" over (409?), curved HEI, RV cam, quadrajet, dual 3" exhaust, TH 400 ported w/shift kit 1999 K1500 Suburban (old style) 5.7L Vortec 4L60E "No matter where you go, ........ there you are"

09-22-2005, 11:44 AM	#2
sneakysnake It's a catastrophic success. Join Date: Jan 2003 Location: Oklahoma Posts: 2,077	Is this a new booster or the old one? The star washer should be a retainer for the felt washer. but if you look close in the pic the booster looks to have one allready, or should go on top of that one Attached Images Last edited by sneakysnake; 09-22-2005 at 11:46 AM.

09-22-2005, 12:39 PM	#3
Americanrider Registered User Join Date: Dec 2004 Location: NW, WA. Posts: 1,421	The same thing happend to me when I was cleaning up an old booster to paint. I re-installed the felt, put the star washer on top and sild a new boot over it. then I secured it with a zip-tie. It worked when I put it back on the truck. I'm not sure what holds that star washer in there other than vacuum. Attached Images

09-23-2005, 12:47 AM	#4
cheyenne10 Senior Member Join Date: Apr 2000 Location: Oregon Posts: 2,512	new boot Where can I get a new boot like that? Old ones get real rotten. __________________ Bob

09-23-2005, 04:59 AM	#6
HeavyD Senior Member Join Date: Sep 2004 Location: Wakaw, Sask, Canada Posts: 3,180	I bought one from Scott's Super Trucks so most vendors should carry them. __________________ "You can take the man out of PA, but you can't take PA out of the man"

09-23-2005, 03:01 AM	#5
Americanrider Registered User Join Date: Dec 2004 Location: NW, WA. Posts: 1,421	I stole that rubber boot from a 91 Buick hydro-boost setup. If you hunt the yards they can be found.

09-24-2005, 03:37 AM	#7
Americanrider Registered User Join Date: Dec 2004 Location: NW, WA. Posts: 1,421	I'm guessing that it keeps dust & crud out of the vacuum chamber.... maybe they are called "Dust-boots" for that reason.

09-28-2005, 12:37 PM	#8
72 longhorn BB Registered User Join Date: Jan 2000 Location: Michigan Posts: 312	but look at the star washer......... See the picture with the star washer laying next to the new and old boots? I can not figure out what IT could be used for. Why would it be a star washer and not just a simple flat washer if it did not have a special purpose? The problem was when I took off the boot and removed the round fiber pad, the foam and washer fell out in my hands! I'm not sure what the replacement structure should look like, not to mention why there was a star washer in there? Any thoughts related to the TOPIC? __________________ Chuck 1972 C-20 Longhorn 402 BB .030" over (409?), curved HEI, RV cam, quadrajet, dual 3" exhaust, TH 400 ported w/shift kit 1999 K1500 Suburban (old style) 5.7L Vortec 4L60E "No matter where you go, ........ there you are"

09-29-2005, 01:04 AM	#9
tomatocity Registered User Join Date: Jun 2005 Location: Sacramento CA Posts: 1,255	I plan on removing mine soon and would like to knowmore about these parts. __________________ Got bored, sold everthing. Got bored, looking for a 1960-66 C-10. Want to build my last truck.

09-24-2005, 07:43 AM	#10
jlmtrout Registered User Join Date: Jul 2002 Location: Memphis, Tn Posts: 194	You'll have an open hole in the firewall, make it harder to cool and heat, plus let more fumes in. Good luck and keep on truckin'............Jerry __________________ '68 c-10 long wheelbase fleetside, been in family since new, originally 250 3 speed Now (389) 350 .060 over 3.75 stroke,Edelbrock Performer RPM 70cc heads and Intake 600 cfm Edelbrock,Small Comp Cams retro-roller cam and roller rockers,9:1 cr, headers, HEI,Old Air a/c, 72 power disc brakes w/stainless lines, 3.42 gear,T-56 6-speed, original paint(what's left of it). Dakota Digital Dash



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