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Kohler OHC camshaft engine timing olds_cruiser 05-04-2007
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Posted by on May 4, 2007, 10:12 am


I have an 18 HP Kohler engine on my lawn tractor. My guess is that
it's about 10-15 years old. It is the OHC model with this information:
Family: TKH574V1G2RA
Model: TH18S
Spec: 54511
Serial: 2722303602

It was not running because of some bad gas that I put into it last
year. I broke it down to get it all cleaned up and got carried away
and pulled the pistons out to check the cylinders. When I put it back
together I did not have the special Kohler tool to set the timing. The
tool (28-761-01) to set the camshaft timing has been discontinued so I
cannot find it anywhere to buy. Does anyone out there know how to set
the timing on an engine like this? Do I need the special Kohler tool
or can I just eyeball the timing setup? The 2 cams are at the top of
the engine and I have some directions in the manual but it says to use
the tool but not how to use it so my guess is that it has it's own set
of instuctions. The local dealers are not interested in helping.

Thanks!
~cj


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Posted by on May 4, 2007, 11:56 am


On May 4, 10:12 am, olds_crui...@yahoo.com wrote:
> I have an 18 HP Kohler engine on my lawn tractor. My guess is that
> it's about 10-15 years old. It is the OHC model with this information:
> Family: TKH574V1G2RA
> Model: TH18S
> Spec: 54511
> Serial: 2722303602
>
> It was not running because of some bad gas that I put into it last
> year. I broke it down to get it all cleaned up and got carried away
> and pulled the pistons out to check the cylinders. When I put it back
> together I did not have the special Kohler tool to set the timing. The
> tool (28-761-01) to set the camshaft timing has been discontinued so I
> cannot find it anywhere to buy. Does anyone out there know how to set
> the timing on an engine like this? Do I need the special Kohler tool
> or can I just eyeball the timing setup? The 2 cams are at the top of
> the engine and I have some directions in the manual but it says to use
> the tool but not how to use it so my guess is that it has it's own set
> of instuctions. The local dealers are not interested in helping.
>
> Thanks!
> ~cj

Betcha next time you'll just pull the plugs and borrow a
borescope. :')

Surely the manual explains cam-timing in some detail, no? And, is
it continuously, or stepwise, adjustable?

If all else fails, I'd try to set the center of the overlap at TDC.
Might
need a dial-indicator or two, and whatever can be fudged up for a
degree-wheel.

Or, just drop the engine off at local dealer. Sounds like there's
some blockage with that. :')

Lotsa luck,
J


Posted by Joe on May 4, 2007, 3:22 pm


On May 4, 9:12 am, olds_crui...@yahoo.com wrote:
> I have an 18 HP Kohler engine on my lawn tractor. My guess is that
> it's about 10-15 years old. It is the OHC model with this information:
> Family: TKH574V1G2RA
> Model: TH18S
> Spec: 54511
> Serial: 2722303602
>
> It was not running because of some bad gas that I put into it last
> year. I broke it down to get it all cleaned up and got carried away
> and pulled the pistons out to check the cylinders. When I put it back
> together I did not have the special Kohler tool to set the timing. The
> tool (28-761-01) to set the camshaft timing has been discontinued so I
> cannot find it anywhere to buy. Does anyone out there know how to set
> the timing on an engine like this? Do I need the special Kohler tool
> or can I just eyeball the timing setup? The 2 cams are at the top of
> the engine and I have some directions in the manual but it says to use
> the tool but not how to use it so my guess is that it has it's own set
> of instuctions. The local dealers are not interested in helping.
>
> Thanks!
> ~cj

I'd give Kohler customer service a call. If the engine people are as
helpful as the plumbing folks, you'll have your problem solved in
short order. They may be able to help you find a more cooperative
dealer if copies of the instructions aren't available. Good luck.

Joe


Posted by Andy Asberry on May 4, 2007, 10:05 pm


On 4 May 2007 07:12:50 -0700, olds_cruiser@yahoo.com wrote:

>I have an 18 HP Kohler engine on my lawn tractor. My guess is that
>it's about 10-15 years old. It is the OHC model with this information:
>Family: TKH574V1G2RA
>Model: TH18S
>Spec: 54511
>Serial: 2722303602
>
>It was not running because of some bad gas that I put into it last
>year. I broke it down to get it all cleaned up and got carried away
>and pulled the pistons out to check the cylinders. When I put it back
>together I did not have the special Kohler tool to set the timing. The
>tool (28-761-01) to set the camshaft timing has been discontinued so I
>cannot find it anywhere to buy. Does anyone out there know how to set
>the timing on an engine like this? Do I need the special Kohler tool
>or can I just eyeball the timing setup? The 2 cams are at the top of
>the engine and I have some directions in the manual but it says to use
>the tool but not how to use it so my guess is that it has it's own set
>of instuctions. The local dealers are not interested in helping.
>
>Thanks!
>~cj

I believe that spec number puts that engine in a Simplicity tractor.

I'm assuming the following is the manual you have:
http://www.kohlerplus.com/login.asp >guest login>under service manuals
click TP-2480 scroll to page 11-10/11/12

I think the tool only held everything in place until you wrap the belt
and set the belt tension. Probably a straight edge and some light
c-clamps would suffice. Or a helper who can follow instructions.

--Andy Asberry--
------Texas-----

Posted by on May 25, 2007, 7:56 am
> On 4 May 2007 07:12:50 -0700, olds_crui...@yahoo.com wrote:
>
>
>
> >I have an 18 HP Kohler engine on my lawn tractor. My guess is that
> >it's about 10-15 years old. It is the OHC model with this information:
> >Family: TKH574V1G2RA
> >Model: TH18S
> >Spec: 54511
> >Serial: 2722303602
>
> >It was not running because of some bad gas that I put into it last
> >year. I broke it down to get it all cleaned up and got carried away
> >and pulled the pistons out to check the cylinders. When I put it back
> >together I did not have the special Kohler tool to set the timing. The
> >tool (28-761-01) to set the camshaft timing has been discontinued so I
> >cannot find it anywhere to buy. Does anyone out there know how to set
> >the timing on an engine like this? Do I need the special Kohler tool
> >or can I just eyeball the timing setup? The 2 cams are at the top of
> >the engine and I have some directions in the manual but it says to use
> >the tool but not how to use it so my guess is that it has it's own set
> >of instuctions. The local dealers are not interested in helping.
>
> >Thanks!
> >~cj
>
> I believe that spec number puts that engine in a Simplicity tractor.
>
> I'm assuming the following is the manual you
have:http://www.kohlerplus.com/login.asp>guest login>under service manuals
> click TP-2480 scroll to page 11-10/11/12
>
> I think the tool only held everything in place until you wrap the belt
> and set the belt tension. Probably a straight edge and some light
> c-clamps would suffice. Or a helper who can follow instructions.
>
> --Andy Asberry--
> ------Texas-----

I too am up against setting the timing on a TH18 Kohler. I found the
timing tool for $35 but would like to see a picture of one. If its as
simple as 4 pins on a straight bar holding both cams in a horizontal
position than i can make one.

Does anyone have a picture? I am going to go to my nearest dealer but
am covering all bases to try and see what this "tool" looks like.


thanks.


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