Sachs Dolmar 100

[Ricko]

Hi, I picked up a Sachs Dolmar 100 the other day, it sparks but fails to fire with a bit is Aspen down the plug hole. I did a compression test which showed about 105psi. Is this too low to get any sign of life from the saw?

Cheers

[Stubby]

1 hour ago, Ricko said:

Hi, I picked up a Sachs Dolmar 100 the other day, it sparks but fails to fire with a bit is Aspen down the plug hole. I did a compression test which showed about 105psi. Is this too low to get any sign of life from the saw?

Cheers

It is a tad low . Would want 120 at least to support combustion . 150 and above is good .

[spudulike]

Depends on the gauge and what it measures on a saw that runs well. All gauges are not equal!

If it measures 150-170 on a good saw, 105 is pitiful as you should be looking at 150 bare minimum.

[Ricko]

I'll start the strip down in the morning.

ill have a look at the bore and maybe try a new piston and ring.

[spudulike]

Just make sure you clean the bore thoroughly if there is any transfer build up on it if it has been seized.