Please login or register.

Login with username, password and session length
Advanced search  
Pages: [1] 2  All

Author Topic: Engine break-in  (Read 3427 times)

0 Members and 1 Guest are viewing this topic.

Farm boy

  • Guest
Engine break-in
« on: February 05, 2019, 08:53:30 PM »

What are the pros and cons of breaking in an engine on the dyno ?
Logged

Yellow09SERG

  • 1K CVO Member
  • *
  • Offline Offline
  • Posts: 2055

    • CVO1: FLTRSE3 YELLOW!!
Re: Engine break-in
« Reply #1 on: February 05, 2019, 09:58:09 PM »

If you a using a qualified tuner, on the dyno would be my choice. They will insure the AF ratio will be right from the start and will monitor the temperatures on the bike as the rings seat. I was interesting to see it take longer and longer for the temperatures to come up as the rings seated and the tune took shape
Logged
Most great stores start with a bad decision

ltank

  • 1K CVO Member
  • *
  • Offline Offline
  • Posts: 1214
    • LA

    • CVO1: 2000 FXR4 S&S V111, CustomS.S. 2-1 exhaust, Primo-Rivera OD 6 speed, 49mm Custom Front End Ohlins 30mm Fork cartridges , Hyperpro Shocks, Barnett Scorpian Clutch
    • CVO2: 1983 88" Shovelhead Won the World of Wheels 1985 Sept 85 Issue of Hot Bike Mag
    • CVO3: 1989 FXRS, 1990 Custom 100" Shovelhead/ EVO
Re: Engine break-in
« Reply #2 on: February 06, 2019, 12:35:40 AM »

S&S motors take 1k mile break in along with not exceeding certain rpm at certain mileage,  varying speeds,  not getting motor too hot. I wouldn't want a motor that someone did break in on a Dyno! I always was very strict and changed oil at 50, 500, 1000, 2000 until the 1500 or 2000 mile mark. Motors are too expensive to mess up.
Logged

MCE

  • Guest
Re: Engine break-in
« Reply #3 on: February 06, 2019, 02:49:41 AM »

Breaking in on a dyno is a good thing. Monitoring the temps and AFR is the right way to
go about it. (I'm going to break mine in like that as soon as my pipe gets here)
Logged

CHH_Badkarma

  • Senior CVO Member
  • ****
  • Offline Offline
  • Posts: 307
  • www.CVOHARLEY.com
    • CA


    • CVO1: 2014 CVO Breakout.
Re: Engine break-in
« Reply #4 on: February 06, 2019, 05:08:27 AM »

Breaking in on a dyno is a good thing. Monitoring the temps and AFR is the right way to
go about it. (I'm going to break mine in like that as soon as my pipe gets here)

Some people just equate a dyno with beating on and flogging a motor   :end:
Logged

skratch

  • 1K CVO Member
  • *
  • Offline Offline
  • Posts: 2003
    • LA

    • CVO1: 2013 FLTRXSE2 Roman Gold/Burnt Emerald
Re: Engine break-in
« Reply #5 on: February 06, 2019, 09:42:55 AM »

yeah, that...

just because it's on a dyno, doesn't mean that it has to be ran at wot.  all the 'rules' still apply, varying engine speeds, loads, etc.  you're just able to closely monitor the state of the engine while you're doing it.
Logged
I understand the concept of reality, but find it too confining as a way of life

hd-dude

  • Global Moderator
  • 5k CVO Member
  • *****
  • Offline Offline
  • Posts: 6646
  • 2005 Cherry FLHTCSE2 "Obsession"

    • CVO1: 05 FLHTCSE2
    • Metal Dragon
Re: Engine break-in
« Reply #6 on: February 06, 2019, 10:26:00 AM »

Like others have stated, break in on the dyno is the best way as you can monitor all of the conditions that can cause damage during break in. Heat, detonation,  and air fuel ratios are critical. I do all of my break-ins on the dyno adjusting the AFR and timing along the way. The first 50 or so miles are critical and the motor never sees RPM's over about 3,000 during that time.

Farm boy

  • Guest
Re: Engine break-in
« Reply #7 on: February 06, 2019, 09:08:32 PM »

I see, so breaking in on a dyno, is just like breaking in a diesel on a dyno. Vary the load and monitor closely.  Make adjustments as necessary.
Now to find a dyno/tuner in Indiana,  that will use TTS.
Any suggestions ?
Logged

prodrag1320

  • AMRA & AHDRA P/D record holder
  • Vendor
  • Elite CVO Member
  • *
  • Offline Offline
  • Posts: 917
Re: Engine break-in
« Reply #8 on: February 07, 2019, 06:09:38 AM »

I see, so breaking in on a dyno, is just like breaking in a diesel on a dyno. Vary the load and monitor closely.  Make adjustments as necessary.
Now to find a dyno/tuner in Indiana,  that will use TTS.
Any suggestions ?

valley racing in northern Indiana or jim kenedy in central illinios

laylonlor

  • 1K CVO Member
  • *
  • Offline Offline
  • Posts: 1045
  • I love YaBB 1G - SP1!
Re: Engine break-in
« Reply #9 on: February 07, 2019, 09:57:05 AM »

i had two broken on dyno , seems ok to me, get a good  patient tuner :huepfenlol2:
Logged

bakon

  • Elite CVO Member
  • *****
  • Offline Offline
  • Posts: 573
    • PA


    • CVO1: 2014 CVO Limited "Wicked"
Re: Engine break-in
« Reply #10 on: February 08, 2019, 11:01:51 AM »

I have done it both ways with plenty of good results.
Logged
Will

Fired00d

  • Global Moderator
  • 25K CVO Member
  • *****
  • Offline Offline
  • Posts: 32639
  • Orange & Black SEEG... Can it get any better?
    • VA


    • CVO1: FLHTCSE
Re: Engine break-in
« Reply #11 on: February 08, 2019, 11:30:46 AM »

i had two broken on dyno , seems ok to me, get a good  patient tuner :huepfenlol2:
Did you mean "in" and not "on"? :nervous:

 :pumpkin:
Ride Safe,
Fired00d
 :fireman:
Logged
:pumpkin: 2004 Screamin’ Eagle Electra Glide :pumpkin:
Rinehart True Duals
SE Breather
SE Race Tuner
HogTunes Speakers
Zippers 575 Gear Drive Cams
Zippers Pro-Tapered Adjustable Push Rods
Zippers Oil Pressure Bypass Shim
Feuling Oil Pump
Feuling Lifters
Zumo 550 W/Flame Caps
Lyndall Z+ Brake Pads
CVOHarley Member #1234
PGR Member #754 (Since '05)
Proud Member EBCM #2.0

Unbalanced

  • FUD Examiner
  • 5k CVO Member
  • ***
  • Offline Offline
  • Posts: 6708

    • CVO1: 2011 SESG,
    • CVO2: 2004 SEEG Pumpkin,
    • CVO3: 2002 Police Roadking, Maudie and Maybelle Slayer
Engine break-in
« Reply #12 on: February 08, 2019, 03:15:53 PM »

I see, so breaking in on a dyno, is just like breaking in a diesel on a dyno. Vary the load and monitor closely.  Make adjustments as necessary.
Now to find a dyno/tuner in Indiana,  that will use TTS.
Any suggestions ?

Check out these guys

Frank @ Drago’s Bikeworks near Rockford Illinois
Jason @ C & S Speed shop east St. Louis
Horsepower Inc in Indiana
« Last Edit: February 08, 2019, 03:18:24 PM by Unbalanced »
Logged
HBRR Florida Chapter,  STILL - The Fastest Chapter - Proven yet again Bikeweek 2017

MCE

  • Guest
Re: Engine break-in
« Reply #13 on: February 15, 2019, 03:32:48 PM »

Many many opinions on this. I don't follow that 'not over 3000' crap either. As long as the tune
is pretty close, you can safely (but briefly) approach WOT to red line. This is important for several
reasons.

Mainly, you're putting maximum pressure against the rings on the freshly honed cylinders. That ensures
a good ring seat and seal. Keeping an eye on AFR, or EGTs,  head and oil temps in the process.

Don't beat on it, but don't treat it like grandma in her ford Maverick either.  To each their own. I break
in V8s on the dyno the same way. Change the oil and cut the filter open right afterwards. Good to go.
Logged

bigchuck

  • Elite CVO Member
  • *****
  • Offline Offline
  • Posts: 859
  • www.CVOHARLEY.com
    • TX


    • CVO1: 2015 Limited
Re: Engine break-in
« Reply #14 on: February 15, 2019, 07:12:07 PM »

Some say to take out synthetic oil and use dinosaur oil for break in. What do you guys think?
Logged
2015 CVO Limited
Long Ride Shield
Fullsac dx w/2"cores, TTS tuned by Wolfgang
Super Shox
Pages: [1] 2  All
 

Page created in 0.165 seconds with 24 queries.