« previous next »
Pages: [1]   Go Down

Author Topic: cam break in  (Read 3153 times)

0 Members and 1 Guest are viewing this topic.

Offline Nicks

  • Turf Warrior
  • **
  • Posts: 198
  • Karma: 0
  • Gender: Male
    • View Profile
cam break in
« on: June 26, 2014, 08:20:47 pm »
What rpm should i run a 16 hp vanny that has a cheeta cam in it to break in the cam and springs and for how long
Logged
Nick Schiveley

Offline Jeff McKelroy

  • Professor Ducky
  • Turf Warrior
  • **
  • Posts: 890
  • Karma: 10
  • Gender: Male
    • View Profile
Re: cam break in
« Reply #1 on: June 26, 2014, 09:33:17 pm »
Quote from: Nicks on June 26, 2014, 08:20:47 pm
What rpm should i run a 16 hp vanny that has a cheeta cam in it to break in the cam and springs and for how long

10,000 RPM for 8 seconds?  :dunno:

I used to be concerned with some of that.  Use conventional paraffin oil for 1 race.  Change oil (and oil filter if applicable) and replace with a proven synthetic oil, and drive it like it's your ex-girlfriend's.

Break an engine in at the load and shaft speed it will be normally operating, in other words.
Logged

Offline redline

  • # I BROKE IT
  • Mow-Forum Junkie
  • ***
  • Posts: 2342
  • Karma: 24
  • Gender: Male
    • View Profile
Re: cam break in
« Reply #2 on: June 26, 2014, 09:34:37 pm »
I start them on Mobil 1.
Run them a few minutes to see if they leak.
Then, drive it like it's Bert's.
Logged
Ed King

71.3% of the time, I'm right every time.

/>http://www.youtube.com/user/tawdew



Offline leadslead

  • Mow-Forum Junkie
  • ***
  • Posts: 1628
  • Karma: 7
  • Gender: Male
    • View Profile
Re: cam break in
« Reply #3 on: June 26, 2014, 09:37:04 pm »
Yip same here but springs will chatter after a few minets of running
Logged
STEVE HENDERSON

Offline Nicks

  • Turf Warrior
  • **
  • Posts: 198
  • Karma: 0
  • Gender: Male
    • View Profile
Re: cam break in
« Reply #4 on: June 26, 2014, 10:22:22 pm »
Ya ive ran it 3 times today and after everytime i shut it down i adjusted the valves,after bout 3 mins of run time they get out of adjustment a little,is that just the cam breaking in?
Logged
Nick Schiveley

Offline Michaelgc7

  • Turf Warrior
  • **
  • Posts: 218
  • Karma: 0
  • Gender: Male
  • To finish first you must first finish ;)
    • View Profile
Re: cam break in
« Reply #5 on: June 26, 2014, 10:31:20 pm »
Maybe its overkill but m'y engines i break them in at around 2000 for around 15 min
Logged
Micheal Carrier

Owner of Carrierperformance.net , lawn mower racing superstore.

Offline Nicks

  • Turf Warrior
  • **
  • Posts: 198
  • Karma: 0
  • Gender: Male
    • View Profile
Re: cam break in
« Reply #6 on: June 26, 2014, 10:33:15 pm »
I was just letting it idle around 1150 rpm for like 3 mins the checked the valves and oil and ran it again
Logged
Nick Schiveley

Offline Huffy044

  • Mow-Forum Junkie
  • ***
  • Posts: 1873
  • Karma: 12
  • Gender: Male
    • View Profile
Re: cam break in
« Reply #7 on: June 27, 2014, 11:11:21 am »
I run all for 30 to 40 minutes at fast idle, reving it up a little during this time frame.  I use straight non detergent oil for this, drain when done, do about five laps getting faster each time, then go.
Logged
VLMRA Singles Points Champion 2006
VLMRA Mini Champion 2007
VLMRA Sportsman Champion 2007
VLMRA Pro-X Champion 2008, 2009
ARMA Sportsman of the Year 2008
ARMA South East Region Mini 2009, 2010, 2011,2012
ARMA National Champion Mini 2009, 2010, 2011,2012, 2013
Maxton NC Model A Record Holder 118.54
VGMR 1932 Model A roadster world record 165.8

Offline westcoast racer

  • Turf Warrior
  • **
  • Posts: 340
  • Karma: 1
  • Gender: Male
    • View Profile
Re: cam break in
« Reply #8 on: June 27, 2014, 07:19:18 pm »
Are you going to race that thing tomorrow?
Logged
Dan Borba

Offline Nicks

  • Turf Warrior
  • **
  • Posts: 198
  • Karma: 0
  • Gender: Male
    • View Profile
Re: cam break in
« Reply #9 on: June 27, 2014, 08:53:46 pm »
Should be next weekend or the weekend after it should be all done.i only work on it on sats all day
Logged
Nick Schiveley

Offline westcoast racer

  • Turf Warrior
  • **
  • Posts: 340
  • Karma: 1
  • Gender: Male
    • View Profile
Re: cam break in
« Reply #10 on: June 30, 2014, 12:21:44 pm »
Quote from: Nicks on June 27, 2014, 08:53:46 pm
Should be next weekend or the weekend after it should be all done.i only work on it on sats all day

You going to have it ready for the fair?
Logged
Dan Borba
Pages: [1]   Go Up
« previous next »
 

anything