Recent Topics
Audio Repair Needed
by Redright9. 12/11/18 09:50 AM
GM dealer must install headlights?
by irv. 12/11/18 08:08 AM
Amsoil vs Schaeffers ATF
by Gebo. 12/11/18 07:10 AM
FORD S-MAX MOTOR OIL
by Maputocar. 12/11/18 02:54 AM
Rickman Metisse.
by Silk. 12/11/18 02:21 AM
UOA places
by OilUzer. 12/11/18 12:31 AM
question about kendall and schaeffer 15w40
by thejudges69. 12/10/18 09:39 PM
Apparently we made it on Amsoil?
by Marco620. 12/10/18 09:39 PM
Slight rust inside Carquest 85522
by A_User55555. 12/10/18 09:03 PM
Which AA battery brand is best?
by StevieC. 12/10/18 08:41 PM
HVAC-Evaporator Coil Question
by dkryan. 12/10/18 08:26 PM
EBAY $10 off $30 Members only
by Capt. 12/10/18 08:15 PM
Ran My First Full Road Marathon - Race Report!
by john_pifer. 12/10/18 07:33 PM
Atlas Pinnacle Pristine shingles
by gregk24. 12/10/18 07:24 PM
CZ-97B Warped Plastic Recoil Spring Guide Rod
by billt460. 12/10/18 07:19 PM
to buy or not to buy
by briggyman. 12/10/18 07:09 PM
Newest Members
TheBirdman, Kalalicious, Thundare, ScvttH, Capt
66648 Registered Users
Who's Online Now
97 registered members (97f150, Al, 94astro, 28oz, AZjeff, andyd, 10 invisible), 1,837 guests, and 29 spiders.
Key: Admin, Global Mod, Mod
Forum Statistics
Forums67
Topics294,909
Posts4,924,127
Members66,648
Most Online2,553
Oct 27th, 2018
Donate to BITOG
Previous Thread
Next Thread
Print Thread
Hop To
Page 1 of 4 1 2 3 4
Engine wear and E85 #2550069
02/27/12 10:54 AM
02/27/12 10:54 AM
Joined: May 2003
Posts: 6,614
southeast US
friendly_jacek Offline OP
friendly_jacek  Offline OP
Joined: May 2003
Posts: 6,614
southeast US
or rather lack of.

Not sure if posted before.



http://www.camaros.net/forums/showthread.php?t=143372

Re: Engine wear and E85 [Re: friendly_jacek] #2550080
02/27/12 11:03 AM
02/27/12 11:03 AM
Joined: Nov 2009
Posts: 4,021
New England
cchase Offline
cchase  Offline
Joined: Nov 2009
Posts: 4,021
New England
Where is the cross-hatching?

Re: Engine wear and E85 [Re: cchase] #2550093
02/27/12 11:09 AM
02/27/12 11:09 AM
Joined: May 2003
Posts: 6,614
southeast US
friendly_jacek Offline OP
friendly_jacek  Offline OP
Joined: May 2003
Posts: 6,614
southeast US
Originally Posted By: cchase
Where is the cross-hatching?


good question.

Re: Engine wear and E85 [Re: friendly_jacek] #2550144
02/27/12 11:59 AM
02/27/12 11:59 AM
Joined: Sep 2003
Posts: 3,135
Austin, Texas
Brons2 Offline
Brons2  Offline
Joined: Sep 2003
Posts: 3,135
Austin, Texas
how many miles on that motor?

I will agree that the tops of the pistons look extremely clean.


2012 Hyundai Sonata GLS 6MT 2.4GDI, ProDS 10w30, XG9688 filter, 2018 Mitsubishi Outlander SEL 2.4 CVT, Factory fill still.
Re: Engine wear and E85 [Re: friendly_jacek] #2550145
02/27/12 12:02 PM
02/27/12 12:02 PM
Joined: May 2011
Posts: 499
San Antonio, TX
PZR2874 Offline
PZR2874  Offline
Joined: May 2011
Posts: 499
San Antonio, TX
Did he run in that hard where it's all "worn" or is it a load and he was taking a pic at the machine shop before the honing?


2007 Mazdaspeed 3 - 123K
2007 Forester XT - 96K
Re: Engine wear and E85 [Re: PZR2874] #2550151
02/27/12 12:07 PM
02/27/12 12:07 PM
Joined: May 2003
Posts: 6,614
southeast US
friendly_jacek Offline OP
friendly_jacek  Offline OP
Joined: May 2003
Posts: 6,614
southeast US
Originally Posted By: PZR2874
Did he run in that hard where it's all "worn" or is it a load and he was taking a pic at the machine shop before the honing?


description in the quoted forum:

Quote:
Engine is SBC 4.145" bore x 3.800" stroke with SRP forged flat top pistons. This is a solid roller cammed engine that is 11.4:1 compression and has been run almost exclusively on E85 since spring 2007. It did have 6 months run time on gasoline before the switch. I was surprised at how clean everything is -- I have NEVER seen pistons this clean after 2 years of use.

There was no ridge at the top of the cylinders, and no scoring or other signs of a lubrication problem in the bores. Engine has 250+ quarter mile passes on it and 15,000 street miles. I cruise on the freeway at 3400-3600 RPM and do NOT take it easy on this thing.

Re: Engine wear and E85 [Re: friendly_jacek] #2550152
02/27/12 12:10 PM
02/27/12 12:10 PM
Joined: May 2011
Posts: 499
San Antonio, TX
PZR2874 Offline
PZR2874  Offline
Joined: May 2011
Posts: 499
San Antonio, TX
So gapless rings then?


2007 Mazdaspeed 3 - 123K
2007 Forester XT - 96K
Re: Engine wear and E85 [Re: friendly_jacek] #2550156
02/27/12 12:13 PM
02/27/12 12:13 PM
Joined: Oct 2011
Posts: 5,091
USA
NHGUY Offline
NHGUY  Offline
Joined: Oct 2011
Posts: 5,091
USA
Cross hatching is the marks left from cylinder honing.Its how the rings break in and make a seal.

Re: Engine wear and E85 [Re: friendly_jacek] #2550180
02/27/12 12:29 PM
02/27/12 12:29 PM
Joined: May 2011
Posts: 499
San Antonio, TX
PZR2874 Offline
PZR2874  Offline
Joined: May 2011
Posts: 499
San Antonio, TX
Correct, but I didn't realize he was using gapless rings... I was looking for the hatching and agreed with everyone else. Still, very clean cylinders.


2007 Mazdaspeed 3 - 123K
2007 Forester XT - 96K
Re: Engine wear and E85 [Re: friendly_jacek] #2550200
02/27/12 12:42 PM
02/27/12 12:42 PM
Joined: Aug 2011
Posts: 9,560
Boston, MA
HerrStig Offline
HerrStig  Offline
Joined: Aug 2011
Posts: 9,560
Boston, MA
How's the fuel consumption on E85? Just bought a new Poulan 4 cycle snowblower and the manual (I read them) says the warranty is void if more than 10% alcohol is used.

Last edited by HerrStig; 02/27/12 12:43 PM.
Re: Engine wear and E85 [Re: cchase] #2550218
02/27/12 12:57 PM
02/27/12 12:57 PM
Joined: May 2003
Posts: 6,614
southeast US
friendly_jacek Offline OP
friendly_jacek  Offline OP
Joined: May 2003
Posts: 6,614
southeast US
Originally Posted By: cchase
Where is the cross-hatching?


the answer is on the page 4

Quote:
cross-hatch still there just doesn't show in the pics. It was lighter than when fresh though. No ridge at top of cylinders. Remember I drove this motor a lot of miles at high RPM on the freeway (3600 RPM) so I expect some wear.


http://www.camaros.net/forums/showthread.php?t=143372&page=4

Re: Engine wear and E85 [Re: friendly_jacek] #2550264
02/27/12 01:42 PM
02/27/12 01:42 PM
Joined: Oct 2008
Posts: 19,193
Sunny Florida
SteveSRT8 Offline
SteveSRT8  Offline
Joined: Oct 2008
Posts: 19,193
Sunny Florida
Very nice. I agree those are some clean pistons.

I guess the camera lacked the resolution to show us the cross hatch. otherwise there should be a deep ridge.

Last edited by SteveSRT8; 02/27/12 01:45 PM.

"In a democracy, dissent is an act of faith."
J. William Fulbright
Best ET-12.79 @ 111 mph
4340 pounds, Street tires
Just like we go to Publix
Re: Engine wear and E85 [Re: friendly_jacek] #2550304
02/27/12 02:14 PM
02/27/12 02:14 PM
Joined: May 2003
Posts: 6,614
southeast US
friendly_jacek Offline OP
friendly_jacek  Offline OP
Joined: May 2003
Posts: 6,614
southeast US
I'm thinking E85 could be one of the best combustion chamber cleaners. But, not available in my area.

Re: Engine wear and E85 [Re: friendly_jacek] #2550313
02/27/12 02:18 PM
02/27/12 02:18 PM
Joined: Feb 2011
Posts: 1,365
Up State NY
SEMI_287 Offline
SEMI_287  Offline
Joined: Feb 2011
Posts: 1,365
Up State NY
What oil was used?


2005 BMW 325xi- Delo 400 XSP 5W40, K&N
2008 Mitsubishi Galant- Parts Master 5w30, Wix



Re: Engine wear and E85 [Re: friendly_jacek] #2556139
03/03/12 09:45 PM
03/03/12 09:45 PM
Joined: Aug 2008
Posts: 3,681
ks, wichita
morris Offline
morris  Offline
Joined: Aug 2008
Posts: 3,681
ks, wichita
looks like it ran dry.

Page 1 of 4 1 2 3 4

BOB IS THE OIL GUY® Powered by UBB.threads™