Break in question for big bore

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Jul 17, 2013 | 08:40 AM

#11

ftworthcowboy

Road Captain

Joined: Nov 2012

Posts: 536

Likes: 1

From: Fort Worth, Texas

Ride it hard and do first oil change at 500 miles.

Jul 17, 2013 | 08:55 AM

#12

my67pnycar

Elite HDF Member

Joined: Oct 2010

Posts: 3,504

Likes: 12

From: DOWN SOUTH

Quote:

Originally Posted by HDV-GLIDE

60mph in 3rd gear with new engine parts huh.......I guess if somethings going to let go, it will doing that.....

Like someone else stated, contact the business who made/sold you the kit and follow their recommendations....

OP stated his mechanic said it was broke in to soft. This is from the mototuneusa site as suggested in one of the posts above
http://www.mototuneusa.com/break_in_secrets.htm

The best method is to alternate between short bursts of hard acceleration and deceleration.

If something is gonna let go, its gonna sling apart breaking it in normal also. 30-60-30x10 link from the forums. Lots of riders break theirs in like this.

https://www.hdforums.com/forum/engin...-big-twin.html

https://www.hdforums.com/forum/touri...-break-in.html

You break your bike in how you like, I broke mine in like this, 8000 miles so far no problems except the air cleaner plug limp mode deal (knocking on wood)

Last edited by my67pnycar; Jul 17, 2013 at 08:58 AM.

Jul 17, 2013 | 09:18 AM

#13

johnd5412

Cruiser

Joined: Oct 2009

Posts: 135

Likes: 11

From: South Carolina

Quote:

Originally Posted by my67pnycar6

Yep, that's how I broke my S&S 106 kit in (the motorman way). It runs like a beast...

Jul 17, 2013 | 09:49 AM

#14

TUCCI

Extreme HDF Member

Joined: Jun 2011

Posts: 10,216

Likes: 224

From: Glendale AZ

I was beginning to think I had a suspicious nature cuz I was saying BS to myself when I read the response from the indy.

Jul 17, 2013 | 09:55 AM

#15

Harleycruiser

Outstanding HDF Member

Joined: Apr 2012

Posts: 2,938

Likes: 30

From: North Florida

Quote:

Originally Posted by $tonecold

I agree with this to the extentand do a leak down or doesn't have the equipment to do it, I would suggest you find a different mechanic. Sumping is usually caused by the oil pump failing to scavenge the crankcase. Could be something as simple as a bad o-ring on your return.

Yep I wonder if he went into the cam case, could be a missing o ring
Otherwise trashed pump charging double for his mistake
Op what are the symptoms?

Jul 17, 2013 | 10:27 AM

#16

goofey

Thread Starter

Cruiser

Joined: Jul 2007

Posts: 167

Likes: 0

Thanks for the info.He did look at o ring and oil pump and they were ok. Seen oil on top of pistons is why he is thinking rings were not sealed. Think I will look at ss web site for break in info been riding 45 years and lots of bikes never had a break in problem before. Thanks again.

Jul 17, 2013 | 10:36 AM

#17

grbrown

Club Member

Joined: Jun 2007

Posts: 45,429

Likes: 2,898

From: Bedford UK

Quote:

Originally Posted by goofey

Think I will look at ss web site for break in info been riding 45 years and lots of bikes never had a break in problem before. Thanks again.

Click on the link I gave earlier!

Jul 17, 2013 | 10:49 AM

#18

beary

Grand HDF Member

Joined: Mar 2007

Posts: 4,928

Likes: 285

From: Edmond Oklahoma

The thing about ring breakin is that its 90% done within the first 50 miles, probably more like 30 miles. So you can check the compressions at 100 miles and know if they broke in or not.

Beary

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Jul 17, 2013 | 11:01 AM

#19

Harleycruiser

Outstanding HDF Member

Joined: Apr 2012

Posts: 2,938

Likes: 30

From: North Florida

Quote:

Originally Posted by goofey

Oil on top of the piston is not oil scavaging, you have oil blow by.
Big difference.
What kind of rings? Cast, Molly?
Is it bad enough to foul the plugs

Last edited by Harleycruiser; Jul 17, 2013 at 12:17 PM.