motor break in - Pontiac GTO Forum
User Tag List

Reply
 
LinkBack Thread Tools Display Modes
post #1 of 14 (permalink) Old 05-23-2012, 08:01 PM Thread Starter
RIP (12/27/60-7/18/15)
 
Topkat's Avatar
 
Join Date: Sep 2010
Posts: 767
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
motor break in

Hi gang........
still waiting for enough $'s to get tires wheels & and a GOOD front end alignment.
Definately plan on puttin' some miles on the GOAT this summer.
ok,,,,,,How long does it take to "break in" my motor? (It has all of 10 miles on it.) How long before I can start ___ing it (hammer,stomp on, etc?)
Pretty sure I shouldnt start out doing burnouts right away.... where do I go from here?
thanks as usual!
Tk
Topkat is offline  
Sponsored Links
Advertisement
 
post #2 of 14 (permalink) Old 05-23-2012, 09:34 PM
 
facn8me's Avatar
 
Join Date: Jul 2011
Location: Tulsa, Ok
Posts: 574
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
You can ask 100 different people and get 100 different answers. My opinion. Drive it like you plan on driving it. Change the oil after 100 miles and again at 500 and regular intervals from there. Past that enjoy!!

https://www.gtoforum.com/signaturepics/sigpic18842_1.gif

1966 Pontiac Lemans Convertible
389 tri power
facn8me is offline  
post #3 of 14 (permalink) Old 05-23-2012, 10:19 PM
 
chuckha62's Avatar
 
Join Date: Apr 2010
Location: NorCal
Posts: 711
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 18 Post(s)
Here's what I've always done... AFTER the Cam break-in, which should be done EXACTLY per the cam manufacturers recommendation...

I drive it around a bit to make sure all is good i.e. no leaks, good pressures, smooth idle, timed right, no hiccups, etc. I take it out to the freeway or empty country road, if that works better. I drive at forty or so MPH in second gear (with a 3 sp. auto) and hammer it til I hit 70-75 leaving it in second gear and abruptly let off til I'm back down to 40 or so, repeat (5 to 10 times). Then I go home and let her cool off and recheck fluids.

Next time I drive it, I usually drive it somewhat normal, but I always vary the speed, never just driving it on the freeway at 60-65 for the first couple of hundred miles. I change the oil at 100 miles and cut up the filter to look for metal and other nastys. If all is good, I drive it somewhat normal, including getting on it from time to time, generally not exceeding 4000-4500 RPM for the first 500 miles or so. I usually change the oil 1000 miles and then drive it like I will the rest of it's life.

Has always worked for me... I've probably built more than my fair share over the last 30+ years...

As stated though, you'll get lots of different methods, it will be nice to see what others recommend.

Chuck

When the only tool in your toolbox is a hammer, you tend to see every problem as a nail.
chuckha62 is offline  
 
post #4 of 14 (permalink) Old 05-23-2012, 10:36 PM
 
Join Date: Oct 2007
Location: Long Island NY
Posts: 4,702
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Garage
Sounds like a good break in plan to me..... Eric



Eric Animal is offline  
post #5 of 14 (permalink) Old 05-24-2012, 09:09 AM Thread Starter
RIP (12/27/60-7/18/15)
 
Topkat's Avatar
 
Join Date: Sep 2010
Posts: 767
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Why in 2nd gear? (mine is a 3sp auto)
thanks as always
Topkat is offline  
post #6 of 14 (permalink) Old 05-24-2012, 09:10 AM
64-67 Expert
 
geeteeohguy's Avatar
 
Join Date: Feb 2008
Location: Fresno, California
Posts: 8,543
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 118 Post(s)
Pretty much the same here. I dump the oil after the cam break in, and again after about 100-500 miles. Then just drive it. The ONE thing to avoid during the first 1000 miles is extended driving at a steady, single rpm....like a long road trip at 65mph. Vary your speed, up and down, etc. Basically, just drive normally and enjoy. Burnouts won't hurt anything but your tires and wallet.
geeteeohguy is offline  
post #7 of 14 (permalink) Old 05-24-2012, 09:37 AM
 
chuckha62's Avatar
 
Join Date: Apr 2010
Location: NorCal
Posts: 711
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 18 Post(s)
Quote:
Originally Posted by Topkat View Post
Why in 2nd gear? (mine is a 3sp auto)
thanks as always
It's what I learned form my dad. He was a factory trained Corvette guy in the early sixties when he worked for a dealer in Peoria, Illinois and that's the way he was trained. He always said it helped seat the rings, he knew SOOOO much that I never argued and it became ingrained in me. Holding it in second lets the compression slow it down quicker.

When the only tool in your toolbox is a hammer, you tend to see every problem as a nail.

Last edited by chuckha62; 05-24-2012 at 09:49 AM.
chuckha62 is offline  
post #8 of 14 (permalink) Old 05-24-2012, 09:40 AM
 
facn8me's Avatar
 
Join Date: Jul 2011
Location: Tulsa, Ok
Posts: 574
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Quote:
Originally Posted by Topkat View Post
Why in 2nd gear? (mine is a 3sp auto)
thanks as always
Doesn't matter what gear. The reasoning behind this is run it up thru the rpm range with max pressure on the rings. Then let it wind down using engine compression. This is supposed to help seat the rings



What my daddy actually taught me was . Fire up new engine with no water in it. Run it up to 2k ( to break in cam) until the heads get warm. (not hot, warm) Shut it off. let it completely cool. Fill with water. Change oil. Drive and enjoy. Never had a problem with this break in either although I don't do it that often. Only put one engine together for me in the last 15 yrs. Rings were already seated. Cam break-in was my olnly worry.

https://www.gtoforum.com/signaturepics/sigpic18842_1.gif

1966 Pontiac Lemans Convertible
389 tri power
facn8me is offline  
post #9 of 14 (permalink) Old 05-24-2012, 12:02 PM
64-67 Expert
 
geeteeohguy's Avatar
 
Join Date: Feb 2008
Location: Fresno, California
Posts: 8,543
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 118 Post(s)
NO WATER??? You must be kidding, I hope. WOW. Never heard that one.....!! The deal with the deceleration and acceleration is that you are putting pressure on the rings from different sides...vacuum on decel, pressure on accel. It does indeed get them seated evenly.
geeteeohguy is offline  
post #10 of 14 (permalink) Old 05-24-2012, 12:53 PM
 
facn8me's Avatar
 
Join Date: Jul 2011
Location: Tulsa, Ok
Posts: 574
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Gotta love dad. I will say.. when he was alive... Never saw a engine go bad due to this. He dabbled in open wheel cars and mechaniced on a WoO car for a year.

https://www.gtoforum.com/signaturepics/sigpic18842_1.gif

1966 Pontiac Lemans Convertible
389 tri power
facn8me is offline  
Sponsored Links
Advertisement
 
Reply

  Pontiac GTO Forum > The 1964-1974 Pontiac Tempest, Lemans & GTO > 1964-1974 Tempest, Lemans & GTO Complete Engine Compartment Discussion

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Pontiac GTO Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in











Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Similar Threads
Thread Thread Starter Forum Replies Last Post
What will I really break? goatroper9 Drive train, suspension, alignment and brakes. 8 12-15-2009 04:16 PM
Parking Break POOF 1964-1974 Tempest, LeMans & GTO Technical and Electrical Wiring 8 06-07-2007 05:20 PM
Motor Oil For Newly Rebuilt 400 Motor. pontiacphil 1964-1974 Tempest, Lemans & GTO Complete Engine Compartment Discussion 3 01-13-2006 06:40 PM
Hide your car if you break up with her... TexasRealtor 2004-2006 GTO General Discussion 4 11-06-2005 02:56 PM
LS2 Break in Legionaire Service, Maintenance and Technical Discussion 2 01-26-2005 09:08 PM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome