booster adjustment

Maintenance advice to keep your Spider in shape.
barnesjtsl
Posts: 198
Joined: Fri Apr 03, 2009 2:13 pm
Your car is a: 1979 Spider
Location: Hillsboro, OR

booster adjustment

Postby barnesjtsl » Tue Apr 03, 2018 10:43 pm

What are the consequences of having the booster plunger adjusted in too far? Maybe 1/6 of an inch in ?

John

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AndyVAS
Patron 2018
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Posts: 141
Joined: Thu May 18, 2017 9:42 am
Your car is a: 1980 Fiat 124 Spider

Re: booster adjustment

Postby AndyVAS » Wed Apr 04, 2018 10:19 am

The pedal must travel farther before engagement.
Andy Phillips
Vick Auto - Technician, Performance Engine Builder & PFI Developer (with ITBs)
http://www.vickauto.com
Stock parts or Performance parts we've got what you need.

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Odoyle
Posts: 440
Joined: Mon Dec 01, 2014 10:06 pm
Your car is a: 1983 Pinafarina Spider
Location: CA

Re: booster adjustment

Postby Odoyle » Wed Apr 04, 2018 2:59 pm

Image

If the piston rod tip is extended past the specification, that would push the rear piston in the master cylinder inward farther than needed, potentially causing the brakes to lock up. You can try it, but you brakes might be glowing red after your first drive.

barnesjtsl
Posts: 198
Joined: Fri Apr 03, 2009 2:13 pm
Your car is a: 1979 Spider
Location: Hillsboro, OR

Re: booster adjustment

Postby barnesjtsl » Wed Apr 04, 2018 6:05 pm

Thanks Odoyle,

I was driving at the piston rod receding into the booster a hair too far. About 1/16" short of the master cylinder.

Thanks again,

jb


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