Stihl 066 can't get it to four stroke WOT

[lecbr600]

I'm not a fan of submerging a saw in water. Put 10 PSI of air pressure to it and spray all possible areas with something like windex.

Are not you afraid to use 10psi for crank case pressure test? Wouldn't you be concerned about oil seal integrity at that pressure level?

My concern is that 10 psi could damage oil seals. I've always been told to test no more of 5-6 psi, just for this reason.

If you have other useful and different experiences , I would be happy to hear them about.


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[jmssaws]

Are not you afraid to use 10psi for crank case pressure test? Wouldn't you be concerned about oil seal integrity at that pressure level?

My concern is that 10 psi could damage oil seals. I've always been told to test no more of 5-6 psi, just for this reason.

If you have other useful and different experiences , I would be happy to hear them about.


Inviato dal mio iPad utilizzando Tapatalk

I use no more than 5-6psi
the saw is blocked off and pressurized so I can't see it hurting it,a quick dunk is all it takes.

 

[blsnelling]

Are not you afraid to use 10psi for crank case pressure test? Wouldn't you be concerned about oil seal integrity at that pressure level?

My concern is that 10 psi could damage oil seals. I've always been told to test no more of 5-6 psi, just for this reason.

If you have other useful and different experiences , I would be happy to hear them about.


Inviato dal mio iPad utilizzando Tapatalk

I've never had a problem.

 

[Scottw99]

Some pics of when I first got it, taking the cylinder off, new piston kit installed

 

[jmssaws]

My red light.

 

[jmssaws]

View attachment 578332 View attachment 578333 View attachment 578334 View attachment 578335

Some pics of when I first got it, taking the cylinder off, new piston kit installed

KS cylinder?

 

[Scottw99]

It's the original stihl one, she just four stroked gents!! Woooo

KS cylinder?

 

[Scottw99]

My red light.
View attachment 578339

Yours sure is prettier than this one!

 

[grizz55chev]

It's the original stihl one, she just four stroked gents!! Woooo

What was the problem?

 

[Scottw99]

What was the problem?

Small leak at spark plug, and I also adjusted the metering lever slightly. I bet the air leak at the top of the cylinder was the culprit

 

[Westboastfaller]

What was the problem?

It cooled down..

 

[Scottw99]

It cooled down..

I bet it did, significantly

 

[grizz55chev]

I bet it did, significantly

If the problem is gone then you narrowed it down, if it returns, it's the coil.

 

[Scottw99]

If the problem is gone then you narrowed it down, if it returns, it's the coil.

I put a used unlimited coil from chainsawr in it. It looks decent, I still have the limited coil and wheel if testing or a swap is required. Thanks everyone for your posts and company! Let's mill some lumber

 

[Scottw99]

 

[grizz55chev]

I put a used unlimited coil from chainsawr in it. It looks decent, I still have the limited coil and wheel if testing or a swap is required. Thanks everyone for your posts and company! Let's mill some lumber

Why go back to limited coil, un-limited is preferred.

 

[jmssaws]

I ported a red light saw for a faller who wanted it all original, I told him after a couple days he would be sick of it on the limiter. He made it a week before I switched it to a unlimited setup.
This is it here,the light is cool though.

 

[jmssaws]

It's the original stihl one, she just four stroked gents!! Woooo

Original will be a ks thin base.

 

[jmssaws]

 

[Scottw99]

View attachment 578364

Yeah it has the KS then, this one.

So I guess I should port the exhaust now haha?