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Doing a 240 heater hose tomorrow, any tips? 200

uid 46171's pic
posted by  kittysgreyvolvo on  Mon Oct 27 13:37 CST 2014
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last visit: Sat Oct 18 15:23 CST 2014
[RELATED]

Continental hoses are Volvo OEM.

Do not use orange antifreeze in that redblock engine. Use the green, like Prestone, or a better quality, silicone free antifreeze many recommend here.

If not using pre-mix coolant, than you're using antifreeze. And we only mix distilled, de-mineralized, or deionized (from best to better) water. Do not ever use city tap or well water when mixing coolant for that Volvo.

May want to check whether the coolant sensor, with the big connector under #3 or so runner, is still good with boiling water, a thermometer, and your trusty multimeter. You can do the same for the coolant sensor that connects to the temp gauge in the dash.

Some teflon tape wrapped around the threads where coolant sensor (copper alloy - more noble) meets the aluminum alloy cylinder (less noble than copper alloy) head. Same for the big coolant tap you use to drain the engine if you remove it entirely for a flush. Engine block is iron alloy (a type of steel, most noble of metal alloys that get wet contact in the coolant).

Hope that helps.

cheers,

dud.






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