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Search: Posts Made By: PileusD36
Forum: Diesel   09-30-2014
Replies: 12
Views: 1,574
Posted By FarCry
Re: Yanmar 2QM15 Parts Manual

You mean like this? http://www.lsm-diesel.dk/2012/yanmar/pdf/motordele_2qm15.pdf
Forum: Diesel   09-30-2014
Replies: 13
Views: 1,202
Posted By FarCry
Re: Yanmar 2QM15 Cooling Maintenance

When was the last time you replaced the two zincs in the block? If they are very worn they can fall off the stud and pieces could migrate into your cooling system. I don't have a manual in front of...
Forum: Diesel   09-30-2014
Replies: 13
Views: 1,202
Posted By JimsCAL
Re: Yanmar 2QM15 Cooling Maintenance

Many like Rydlyme.

RYDLYME Marine: The Ultimate Biodegradable Marine Descaler! | RydLyme Marine (http://www.rydlymemarine.com/)

I used oxalic acid from the local hardware store. Seemed to work...
Forum: Diesel   09-28-2014
Replies: 13
Views: 1,202
Posted By JeffBurright
Re: Yanmar 2QM15 Cooling Maintenance

I second Rockter's advice about cleaning up the temp sender in the back of the engine, as well as mucking out the chamber the sender goes in. I had this problem on my engine (same model as yours),...
Forum: Diesel   09-28-2014
Replies: 13
Views: 1,202
Posted By Rockter
Re: Yanmar 2QM15 Cooling Maintenance

Pileus :

The motor is raw water-cooled, and with time, it tends to scale up somewhat. My old Volvo MD17C is also raw water-cooled, and after about 20 years I had to strip it (for other reasons...
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