Consequences of an improper hatch pattern in bores?
Consequences of an improper hatch pattern in bores?
What happens if the hatch pattern in an engine is less than ideal? At not nearly a steep enough angle...to be exact. What happens?
------------------
"American made baby. 100% American iron. The muscle among the masses. My hero. Yep, you can take your ergonomically designed, space age, computer controlled, 4 door, cup holding map lighted split double wishbone split fold down retractable cargo covered moon roof piece of transportation and keep it. For I have felt the thunder. And I know the difference!"
JSP Motorsports
ICON Motorsports
------------------
"American made baby. 100% American iron. The muscle among the masses. My hero. Yep, you can take your ergonomically designed, space age, computer controlled, 4 door, cup holding map lighted split double wishbone split fold down retractable cargo covered moon roof piece of transportation and keep it. For I have felt the thunder. And I know the difference!"
JSP Motorsports
ICON Motorsports
Supreme Member
Joined: Jul 1999
Posts: 2,767
Likes: 2
From: Vereinigten Staaten
Car: Take
Engine: Your
Transmission: Pick
I assume you are talking about cross-hatch in a cylinder bore?
The effects, hmmmm..... Probably nothing serious. It doesn't have to be perfect, why do you ask?
------------------
If you live in Southeastern US, check us out!
South East Thirdgen
ASE Master Tech + L1
Savannah, GA
'87 Trans Am
S/D TPI retrofit including functional PassKey, 22# injectors,
JET AFPR, Ported Plenum,
TB Coolant Bypass, Custom Cold Air,
SSM SFC, KYB Shocks, Boxed LCAs, Wonder Bar,
8mm Accel wires,
Flowmaster Exhaust,
16" GTA rims,
Corvette Servo,
-->14.97 @ 94.9 MPH<--
'97 Bonneville SSE
The effects, hmmmm..... Probably nothing serious. It doesn't have to be perfect, why do you ask?
------------------
If you live in Southeastern US, check us out!
South East Thirdgen
ASE Master Tech + L1
Savannah, GA
'87 Trans Am
S/D TPI retrofit including functional PassKey, 22# injectors,
JET AFPR, Ported Plenum,
TB Coolant Bypass, Custom Cold Air,
SSM SFC, KYB Shocks, Boxed LCAs, Wonder Bar,
8mm Accel wires,
Flowmaster Exhaust,
16" GTA rims,
Corvette Servo,
-->14.97 @ 94.9 MPH<--
'97 Bonneville SSE
Well cuz I have a block here more or less ready to go, but I honed the bores and I couldn't get the drill nearly slow enough to reach a 60 degree angle. Since I'm a cheap bastard, and would have to take off work to get to the machine shop, I'm debating just leaveing it alone.
------------------
"American made baby. 100% American iron. The muscle among the masses. My hero. Yep, you can take your ergonomically designed, space age, computer controlled, 4 door, cup holding map lighted split double wishbone split fold down retractable cargo covered moon roof piece of transportation and keep it. For I have felt the thunder. And I know the difference!"
JSP Motorsports
ICON Motorsports
------------------
"American made baby. 100% American iron. The muscle among the masses. My hero. Yep, you can take your ergonomically designed, space age, computer controlled, 4 door, cup holding map lighted split double wishbone split fold down retractable cargo covered moon roof piece of transportation and keep it. For I have felt the thunder. And I know the difference!"
JSP Motorsports
ICON Motorsports
If you are talking about the crosshatch pattern for the cylinder bore, yes it does matter. Most ring manufacturers recommend a 20*-30* crosshatch patterns, some a little more. Without the ring manufacturers specified crosshatch pattern, you can get into proper lubrication and eventually a sealing problem with the rings. The crosshatch pattern you put on the cylinder walls is part of the equation for proper ring lubrication and is VERY important for longevity in any engine build-up, stock or performance.
Proper crosshatch pattern may not seem like a big deal, but it really is. I’ve seen people ruin new rings because of lubrication problems due to improper crosshatch pattern or have had drastically shortened ring to cylinder wall wear.
Hope this helps.
Proper crosshatch pattern may not seem like a big deal, but it really is. I’ve seen people ruin new rings because of lubrication problems due to improper crosshatch pattern or have had drastically shortened ring to cylinder wall wear.
Hope this helps.
Member
Joined: Nov 1999
Posts: 429
Likes: 0
From: Fayetteville, Arkansas, USA
Car: 1994 Trans Am
Engine: 5.7L LT1
Transmission: 6-speed
No wonder any my rebuilt motors back in Pakistan never lasted even half as long before being torn down. The dumba$$ mechanics over there think it's enough to merely rebore or resleeve the cylinder bores. No cross hatch=no lubrication=short engine life. Duh, now I get it!!
------------------
'88 IROC 305 TPI
Crappy 700R4 slushbox
Gutted airboxes
180 degree T-stat
Advanced base TPS voltage
Relocated IAT sensor
Momo steering wheel (gotta luv it)
Ram-air setup coming soon
Flowmaster muffler (puke)
Taylor SpiroPro wires
Accel cap and rotor
Kills: '94 Z28, Olds Aurora V8, bunch of Mustangs, T-birds, ricers, and others who assumed a 12 year-old car would be too slow.
------------------
'88 IROC 305 TPI
Crappy 700R4 slushbox
Gutted airboxes
180 degree T-stat
Advanced base TPS voltage
Relocated IAT sensor
Momo steering wheel (gotta luv it)
Ram-air setup coming soon
Flowmaster muffler (puke)
Taylor SpiroPro wires
Accel cap and rotor
Kills: '94 Z28, Olds Aurora V8, bunch of Mustangs, T-birds, ricers, and others who assumed a 12 year-old car would be too slow.
jester if you don't have the correct cross hatch your kids will all turn out just like you. now that's something to worry about.
------------------
ICON Motorsports
1st & 3rd
------------------
ICON Motorsports
1st & 3rd
Trending Topics
Senior Member
Joined: Aug 1999
Posts: 950
Likes: 0
From: This spot right here --->*
Car: 2002 SOM z28
Engine: LS1
Transmission: T-56
Dude... your cheap-a$$ is $crewed! 
------------------
1984 z28 w/ a 357 cu in. monster engine which is looking like the posterchild for Edelbrock with the exception of the Holley 750vac... all the suspension stuff... 9-bolt posi disk is in...
-=ICON Motorsports=-

------------------
1984 z28 w/ a 357 cu in. monster engine which is looking like the posterchild for Edelbrock with the exception of the Holley 750vac... all the suspension stuff... 9-bolt posi disk is in...
-=ICON Motorsports=-
Thread
Thread Starter
Forum
Replies
Last Post
formula00ra
Interior Parts Wanted
1
Sep 28, 2015 11:50 AM






