Sparkplug ejected

Old forum posts ending on Oct 21 '09

Moderator: TechMOGogy

Locked
User avatar
karoja
Posts: 109
Joined: Sun Aug 24, 2008 12:06 pm
Location: Guatemala

Sparkplug ejected

Post by karoja » Wed Jul 01, 2009 7:11 pm

Hello to all,

unfortunately my 712 decided to spit out sparkplug of cylinder 1, with tread and all. Plug of cylinder 4 was also found loose, which must have been the reason for cylinder 1 failing that way. Could be cylinder 4 has thread damage as well. Seems I will need a new headgasket, and intake and exhaust seals. Usually in Guatemala they install inserts to repair the plug thread, whihc should save me from buying a new cylinder head. Has anybody had any experience with this?

We managed to keep the plug inserted with a piece of a wood, which allowed me to run another 180 km to get home.

your input much appreciated. Brgds,
Karl
http://www.monkeybaymarina.com
712 Camper / 710 M

User avatar
Jim LaGuardia
Posts: 1679
Joined: Wed Apr 14, 2004 3:42 pm
Location: San Bernardino Ca
Contact:

Post by Jim LaGuardia » Wed Jul 01, 2009 7:17 pm

No head gasket used on Pinz. TimeSerts are a acceptable repair, just make sure not to trim it too short or the plug threads will protrude and use locktite on the insert as well.
To do without removing the head, use grease to hold the chips from the drilling and tapping, then blow compressed air into the cylinder to remove any stray leavings.
Cheers, Jim LaGuardia
http://smg.photobucket.com/albums/v510/Goatwerks/
"Arch Magus of Machines."

User avatar
karoja
Posts: 109
Joined: Sun Aug 24, 2008 12:06 pm
Location: Guatemala

Post by karoja » Wed Jul 01, 2009 9:03 pm

Hi Ji, now that is valuable advice, specially if I do not have to remove the head. Can you do it with the motor installed? Do you have a kit or reference number for the TimeSerts of the Pinz?

IF I had to remove the head, what parts would I need?

Thanks in advance,
Karl
http://www.monkeybaymarina.com
712 Camper / 710 M

User avatar
Jim LaGuardia
Posts: 1679
Joined: Wed Apr 14, 2004 3:42 pm
Location: San Bernardino Ca
Contact:

Post by Jim LaGuardia » Wed Jul 01, 2009 9:32 pm

While it is dificult, it can be done in place with the right tools and previous mensioned tips.
If you choose to remove the heads you will need (for each head) 5 pushrod tube seals, one oil return o-ring, 2 intake gaskets, 2 exhaust gaskets, 1 valve cover gasket, 2 carb base gaskets, Permatex aviation sealant(for cylinder bases if they come loose and valve cover gaskets)
Don't forget some spray brake cleaner :idea:
Cheers, Jim LaGuardia
http://smg.photobucket.com/albums/v510/Goatwerks/
"Arch Magus of Machines."

User avatar
karoja
Posts: 109
Joined: Sun Aug 24, 2008 12:06 pm
Location: Guatemala

Post by karoja » Wed Jul 01, 2009 9:56 pm

Great, thanks a lot! Any advice on the kit number of the TimeSerts for the Pinzgauer? As I plan to buy them in the States to have them shipped down to Guatemala this would be very helpful.

Thanks again,
Karl
http://www.monkeybaymarina.com
712 Camper / 710 M

User avatar
Jim LaGuardia
Posts: 1679
Joined: Wed Apr 14, 2004 3:42 pm
Location: San Bernardino Ca
Contact:

Post by Jim LaGuardia » Thu Jul 02, 2009 12:08 am

Cheers, Jim LaGuardia
http://smg.photobucket.com/albums/v510/Goatwerks/
"Arch Magus of Machines."

User avatar
karoja
Posts: 109
Joined: Sun Aug 24, 2008 12:06 pm
Location: Guatemala

Post by karoja » Fri Jul 03, 2009 10:35 am

Thanks Jim!
Karl
http://www.monkeybaymarina.com
712 Camper / 710 M

Locked