![]() |
Register or Log In To remove these advertisements. |
|
|
![]() |
|
Thread Tools | Display Modes |
![]() |
#1 |
Registered User
Join Date: Sep 2012
Location: Queen Creek, AZ
Posts: 551
|
Is this 1" or 1 1/8" bore... my eyes suck!
Swapping out my master cylinder and putting in a disc/drum prop valve from a PO cluster bang and can't figure out the bore size of the MC. Where do you measure from? the lip, rubber surround... The sizes are so close I am getting nervous picking a size and ordering one. Any thoughts?
Appreciate the time! Weev-
__________________
Weev- Life's tough...... It's even tougher when your stupid - John Wayne |
![]() |
![]() |
![]() |
#2 |
Registered User
Join Date: Aug 2009
Location: Bowser
Posts: 13,608
|
Re: Is this 1" or 1 1/8" bore... my eyes suck!
Measure the inside bore.
|
![]() |
![]() |
![]() |
#3 |
Registered User
![]() Join Date: Mar 2011
Location: Valley of the Sunstroke, Arizona
Posts: 1,210
|
Re: Is this 1" or 1 1/8" bore... my eyes suck!
Hey Weev,
Get a vernier or digital caliper, one of my favorite tools.
__________________
My build thread - Devastation and Reform http://67-72chevytrucks.com/vboard/s...d.php?t=567131 |
![]() |
![]() |
![]() |
#4 |
Senior Member
Join Date: Jan 2003
Location: daytonabeach
Posts: 22,956
|
Re: Is this 1" or 1 1/8" bore... my eyes suck!
nuttin like havin the right tool for the right job
i second the caliper vote
__________________
71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY |
![]() |
![]() |
![]() |
#5 |
Registered User
Join Date: Sep 2012
Location: Queen Creek, AZ
Posts: 551
|
Re: Is this 1" or 1 1/8" bore... my eyes suck!
Ya I gotta pick one of those up! Should check this weekend with Black Friday deals.
Thanks guys Weev- Posted via Mobile Device
__________________
Weev- Life's tough...... It's even tougher when your stupid - John Wayne |
![]() |
![]() |
![]() |
#6 |
Registered User
Join Date: Aug 2008
Location: Lantana, TX
Posts: 419
|
Re: Is this 1" or 1 1/8" bore... my eyes suck!
I'd guess a 1" bore. It looks like the lip is an 1/8" on either side so subtract a 1/4" off what you see.
Posted via Mobile Device |
![]() |
![]() |
![]() |
#7 |
Registered User
Join Date: Jan 2000
Location: Wyoming USA
Posts: 2,445
|
Re: Is this 1" or 1 1/8" bore... my eyes suck!
I got my cheapy dial gauge from Harbor Freight for like $8
__________________
2001 Silverado K-1500 2005 FXDWG stage3 69 CHEVY Short/Step 327/4L60 373 posi 63 IMPALA 327 |
![]() |
![]() |
![]() |
#8 |
Registered User
Join Date: Oct 2005
Location: Overland Park, Ks.
Posts: 5,216
|
Re: Is this 1" or 1 1/8" bore... my eyes suck!
It looks like 1 1/8 in. to me.
|
![]() |
![]() |
![]() |
#9 |
Registered User
Join Date: Aug 2010
Location: Edwards, CA
Posts: 7,503
|
Re: Is this 1" or 1 1/8" bore... my eyes suck!
While having the proper tool to measure with is best, there are ways to use a tape accurately.
A tape measure is handy, but much better suited to building a house than a truck or an airplane. The biggest problem is the zero hook at the end. It slides in and out for an inside or outside measurement. Again great when a circular saw is used but not in this or similar cases. To use a tape measure you need to remember the first inch is useless, period. Also the markings are not very uniform on less expensive tapes. So the simple way take a measurement is to "burn" the first inch and start measuring at the 1" graduation as I did in the reworked picture. Now by laying the tape up and trying to line up with the true bore and not the relief bevel it looks close to 1 1/8" (1.125"). If the number needs to be really close try a second confirming measurement further up the tape say starting about the 4" mark. Hope this helps and is a handy tip to remember at the used parts yard with a 10' pocket tape.
__________________
Thanks, Tim * VIN/Model Decoders * Power Team Charts (engine/transmission/gear ratio) * Post Your Pickup SPID ** Blazer SPID ** Suburban/Panel SPID * RTFM ... Read The Factory Manuals... download 'em here Highlanders ** Do you have a 1972 Plaid Pickup? ** Plaid Blazer ** Plaid Suburban |
![]() |
![]() |
![]() |
#10 | |
Registered User
Join Date: Sep 2012
Location: Queen Creek, AZ
Posts: 551
|
Re: Is this 1" or 1 1/8" bore... my eyes suck!
Quote:
Weev- Posted via Mobile Device
__________________
Weev- Life's tough...... It's even tougher when your stupid - John Wayne |
|
![]() |
![]() |
![]() |
#11 |
A guy with a truck
Join Date: Sep 2005
Location: Germany, for now
Posts: 5,920
|
Re: Is this 1" or 1 1/8" bore... my eyes suck!
Are you running a booster or not? Generally speaking, the 1" is used for manual and 1.125" for power. Screwing this up can make a HUGE difference in pedal feel and braking ability.
Posted via Mobile Device
__________________
-Chris Instagram _elgringoloco_ '70 Short-Wide How to: Ruin a perfectly good C10 ‘70 Blazer ConversionHow To: Ruin a Perfectly Good 4wd '72 Highlander How To: Ruin a Perfectly Good K/5 (SOLD) '72 Blazer 2WD How to: Ruin a perfectly good Blazer (SOLD) '05 Yukon Daily Driven (not so stock) Yukon (SOLD) ‘07 Yukon Denali (daily) Members met list: SCOTI, darkhorse970, 67cheby, 67cheby'sGirl, klmore, porterbuilt, n2billet, Fastrucken, classicchev, Col Clank, GSFMECH, HuggerCST, Spray-Bomb, BACKYARD88, 5150, fine69, fatbass, smbrouss70, 65StreetCruiser, GAc10boy |
![]() |
![]() |
![]() |
#12 |
Registered User
Join Date: Sep 2012
Location: Queen Creek, AZ
Posts: 551
|
Re: Is this 1" or 1 1/8" bore... my eyes suck!
I have power brakes with a 9" booster.
Weev- Posted via Mobile Device
__________________
Weev- Life's tough...... It's even tougher when your stupid - John Wayne |
![]() |
![]() |
![]() |
Bookmarks |
|
|