Author Topic: intec single  (Read 1649 times)

0 Members and 1 Guest are viewing this topic.

Offline biker

  • Newbie
  • *
  • Posts: 45
  • Karma: -1
    • View Profile
intec single
« on: September 24, 2018, 02:50:10 PM »
I have an 18.5 intec single on a grass cutter. All stock never opened suddenly starts sputtering and stops. Will not turnover unless plug is pulled. Took it apart thinking some kind of compression relief problem. To my amazement the cam timing is 4 teeth of the crank mark. Can't see anything wrong. Any Ideas what caused this to happen?



Offline biker

  • Newbie
  • *
  • Posts: 45
  • Karma: -1
    • View Profile
Re: intec single
« Reply #1 on: September 25, 2018, 06:49:47 AM »
Surely someone has an idea.

Offline Mower Maniac

  • Turf Warrior
  • **
  • Posts: 104
  • Karma: 1
  • Gender: Male
    • View Profile
Re: intec single
« Reply #2 on: September 25, 2018, 06:02:48 PM »
did you adjust you valves? I thought mine was junk but my lash was way off
AZLMRA
2016-GPK 3rd place
2017-GPK 2nd place


Offline biker

  • Newbie
  • *
  • Posts: 45
  • Karma: -1
    • View Profile
Re: intec single
« Reply #3 on: September 26, 2018, 05:31:02 AM »
It's not a valve problem I took the case apart and looked. The mark on the cam is 4 teeth apart on the crank. What caused it to get that way?

Offline PJG56

  • Turf Warrior
  • **
  • Posts: 520
  • Karma: 4
  • Gender: Male
    • View Profile
Re: intec single
« Reply #4 on: September 26, 2018, 11:40:03 AM »
Good?
Retime it and start over
Paul Guptill  (oppy) #238modX
2012 slmra mowstock champion(builder/owner)

2013 slmra mowdified champion(builder/owner)
2013 ARMA national champion Mod-X(builder/owner)
2014 ARMA national champion Mod-X(builder/owner)
2014 All American Champion Mod-X/CP(builder/owner)
2014All American Champion FXT (engine builder)
2014 All American 2nd place SP(builder/owner)
2015 All American 2nd place BP (builder/owner)
2016 OutlawTriple Crown FXT Champion (engine builder)

Offline biker

  • Newbie
  • *
  • Posts: 45
  • Karma: -1
    • View Profile
Re: intec single
« Reply #5 on: September 26, 2018, 12:55:07 PM »
I can pill the cam and realign the timing marks, adjust the valves and put her on a test stand but I would really like to know why it jumped time in the first place. :confused: :confused: 

Offline Mower Maniac

  • Turf Warrior
  • **
  • Posts: 104
  • Karma: 1
  • Gender: Male
    • View Profile
Re: intec single
« Reply #6 on: September 26, 2018, 03:46:31 PM »
is it a solid gear cam?
AZLMRA
2016-GPK 3rd place
2017-GPK 2nd place


Offline biker

  • Newbie
  • *
  • Posts: 45
  • Karma: -1
    • View Profile
Re: intec single
« Reply #7 on: September 27, 2018, 03:42:14 PM »
No sir, the gear is I think 6 spokes. Definitely not solid.

Offline biker

  • Newbie
  • *
  • Posts: 45
  • Karma: -1
    • View Profile
Re: intec single
« Reply #8 on: October 26, 2018, 04:43:56 PM »
Well I'm back and the motor will still not run right. I reinstalled the cam after checking the compression relief all is good. Then adjusted the valves to .006 exhaust and .004 intake with piston TDC. Engine turns good but only half starts and sputters. Fire on plug is blue and looks like a torch. When I try to crank I have raw fuel out exhaust and puddle in air intake. Do you think the cam has jumped again? I can open it up again but I'd like some ideas as what to look for. :confused: :confused:

Offline Mower Maniac

  • Turf Warrior
  • **
  • Posts: 104
  • Karma: 1
  • Gender: Male
    • View Profile
Re: intec single
« Reply #9 on: October 28, 2018, 10:57:44 AM »
Do you have a fuel shutoff valve?
AZLMRA
2016-GPK 3rd place
2017-GPK 2nd place

Offline biker

  • Newbie
  • *
  • Posts: 45
  • Karma: -1
    • View Profile
Re: intec single
« Reply #10 on: October 30, 2018, 06:56:43 AM »
It has no fuel shut off. I got it cranked and it would surge , sputter then surge again finally shut of and would not start.

Offline BIG AL 202

  • Highly Mowtivated
  • ****
  • Posts: 3227
  • Karma: 8
  • Gender: Male
  • LET'S GO FIND A NEW PLACE TO RACE MOWERS!
    • View Profile
Re: intec single
« Reply #11 on: October 31, 2018, 06:47:02 AM »
You could have sheered the key for the crank gear. When you pull it apart make sure you pull off the gear to check.
ALWAYS VOTE FOR ED!   FONGS BROTHER FROM ANOTHER MOTHER!

Offline biker

  • Newbie
  • *
  • Posts: 45
  • Karma: -1
    • View Profile
Re: intec single
« Reply #12 on: November 02, 2018, 06:43:38 AM »
If I read you right, there is some sort of pin on the crank shaft that holds the gear in place. I this correct?

Offline PJG56

  • Turf Warrior
  • **
  • Posts: 520
  • Karma: 4
  • Gender: Male
    • View Profile
Re: intec single
« Reply #13 on: November 02, 2018, 06:29:36 PM »
A woodruff key holds crank gear to shaft
Paul Guptill  (oppy) #238modX
2012 slmra mowstock champion(builder/owner)

2013 slmra mowdified champion(builder/owner)
2013 ARMA national champion Mod-X(builder/owner)
2014 ARMA national champion Mod-X(builder/owner)
2014 All American Champion Mod-X/CP(builder/owner)
2014All American Champion FXT (engine builder)
2014 All American 2nd place SP(builder/owner)
2015 All American 2nd place BP (builder/owner)
2016 OutlawTriple Crown FXT Champion (engine builder)

Offline biker

  • Newbie
  • *
  • Posts: 45
  • Karma: -1
    • View Profile
Re: intec single
« Reply #14 on: November 03, 2018, 04:50:24 AM »
Really appreciate all the input. I have several things to do before I go into it again but I do thank you.

 

anything