7.5 Mercury tell tale pees exhaust then water

[kmk]

When I start motor up works fine, then after running a little bit the tell tale whole shoots exhaust out and goes back and fourth between water and exhaust. I replaced pump and seals and check compression. Compression was 125 psi. Any body have any ideals.

 

[DHPMARINE]

Re: 7.5 Mercury tell tale pees exhaust then water

Look at your tellhose.If it comes from your thermostat housing,the flow will be erratic.It will only flow when the stat opens,and stop when it closes.<br /><br />DHP

 

[kmk]

Re: 7.5 Mercury tell tale pees exhaust then water

This is a 1982 model and there is not thermostat that I can see.

 

[Blizzard]

Re: 7.5 Mercury tell tale pees exhaust then water

Are you sure that it is exhaust? Or is it steam?