Removing drain petcocks on volvo 3.0 -- winterizing

[bow wow rider]

I was annoyed that my service manual doesn't show where the drain petcocks are exactly and also it says there are four when there are only two. I haven't been able to find pictures/diagrams of the petcocks on this popular engine anywhere, so I took some of my own and posted them. This is for archiving purposes.

http://fourwinnshorizon.blogspot.com/2010/11/draining-volvo-penta-engine-block-for.html

 

[Don S]

Re: Removing drain petcocks on volvo 3.0 -- winterizing

Which manual were you using? and which model engine. Some models may have different items in the system.

 

[bow wow rider]

Re: Removing drain petcocks on volvo 3.0 -- winterizing

it's the manual that came with the volvo penta 3.0 gl, as pictured if you follow the link. this is one issue that concerned me when winterizing, so i thought i'd get some pictures out there for the next person with my concerns.

 

[Lodgepole]

Re: Removing drain petcocks on volvo 3.0 -- winterizing

I have an OMC 1993 3.0 and it looks just like the pictures above. Same manifold and block drains. I have NEVER been able to get any water out of the manifold even with the petcock removed. Using a small screwdriver, there is NO hole into the manifold. Must be a flawed casting which was never cleared. Just to be sure, I always pour antifreze into the manifold when winterizing.

 

[bow wow rider]

Re: Removing drain petcocks on volvo 3.0 -- winterizing

there is NO hole into the manifold. Must be a flawed casting which was never cleared.

wow that's wonky. i wonder if you hit it hard enough, if you could bust through the metal? could be pretty thick though i guess.

 

[Lodgepole]

Re: Removing drain petcocks on volvo 3.0 -- winterizing

Don't want to screw anything up. The antifreze in the manifold eases my mind and takes care of the manifold.

 

[tkrfxr]

Re: Removing drain petcocks on volvo 3.0 -- winterizing

Don't want to screw anything up. The antifreze in the manifold eases my mind and takes care of the manifold.

Interestingly enough, antifreeze is what this insurance company recommends...


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