Engine Mechanical Topics Discussion for motor builds, cams, head work, stripped bolts and other engine related issues. The good and the bad. If it goes round and around or up and down, post it here.

Adjusting quench

Thread Tools
 
Search this Thread
 
  #1  
Old 07-25-2017, 10:53 PM
canyoncritter's Avatar
canyoncritter
canyoncritter is offline
Cruiser
Thread Starter
Join Date: Jun 2012
Location: san diego
Posts: 157
Likes: 0
Received 11 Likes on 11 Posts
Default Adjusting quench

Excuse my ramblings it comes out that way,just checking my thoughts over here.

.045 head gasket, 4 pisces of solder, .060 rolled motor threw, solder measured .050 .050 quench ouch. My head tells me that means I have .005 deck height...

If I throw a .030 head gasket, that should bring me down to a .035 quench ,
030+.005 deck = .035

Would it be worth it to take .005 off the bases of the jugs, for a .030 quench?
 
  #2  
Old 07-26-2017, 03:02 AM
fidel's Avatar
fidel
fidel is offline
Tourer
Join Date: Jan 2010
Posts: 296
Likes: 0
Received 4 Likes on 4 Posts
Default

put a .027 end at 32
 
  #3  
Old 07-26-2017, 03:48 AM
Hillsidecycle.com's Avatar
Hillsidecycle.com
Hillsidecycle.com is offline
Sponsor
Join Date: Dec 2007
Posts: 12,085
Received 816 Likes on 581 Posts
Default

The closer you can put the piston to the head, w/o contact during full operating temps, the less chance of detonation, and more chamber turbulence.
.030" keeps things in the safe zone.
Scott
 
__________________
HILLSIDE MOTORCYCLE & MACHINE, INC.
HARLEY-DAVIDSON SPEED & SERVICE CENTER
5225 SOUTH MAIN ST., MUNNSVILLE, N.Y. 13409
Sales/Support 315-495-6650
www.hillsidecycle.com
Walk-in Retail Showroom
Complete H-D Machine Shop
Case & cylinder boring
Complete Cylinder Head Shop
High-Performance Engine Kits
Crank Rebuilding
Direct Link & PowerVision Tuning
Goodson HD Tooling Manufacturer
Maxton Mile World Record
4500 sq ft. facility

OVER 35 YEARS OF H-D ENGINE BUILDING.
See us on Facebook.
  #4  
Old 07-26-2017, 04:45 AM
canyoncritter's Avatar
canyoncritter
canyoncritter is offline
Cruiser
Thread Starter
Join Date: Jun 2012
Location: san diego
Posts: 157
Likes: 0
Received 11 Likes on 11 Posts
Default

Scott am I doing my math right so far? Ie need to take .005 off the bottom of the barrels, bring to .030 squish. Or is there a head gasket I can use to bring it down,or not a great ideal.

Not to be stupid question of the day, explain the day, can you explain the operating temp , and 30s the safe spot.
 
  #5  
Old 07-26-2017, 05:27 AM
Schex's Avatar
Schex
Schex is online now
Supporter
Join Date: Apr 2011
Location: SE Louisiana
Posts: 5,200
Received 6,816 Likes on 1,760 Posts
Default

"safe zone", has enough room for no piston to head contact when the carbon layer forms on both,
and tight enough to promote turbulence, more complete combustion, and help combat pinging.

At operating temp, dimensions change due to heat expansion.

You'll be OK at .035"
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
northeastconfederate
Exhaust System Topics
14
07-14-2011 06:54 AM
voodoodrug
Touring Models
6
07-08-2010 10:27 AM
largeswine
General Harley Davidson Chat
1
03-26-2009 09:26 PM
iknowyoueazyryder
Ironhead
1
02-18-2008 05:25 PM
jakazz
Exhaust System Topics
4
07-02-2007 10:05 AM



Quick Reply: Adjusting quench



All times are GMT -5. The time now is 06:55 PM.