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need to replace radiator - questions


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Does anyone have a bleed procedure that does not involve vacuum system and works?

Are there non-Porsche branded coolants that are a quality substitute?

Should I replace the upper and lower hoses when replacing the radiator?

How do I "safety wire" the house clips?

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Does anyone have a bleed procedure that does not involve vacuum system and works?

Are there non-Porsche branded coolants that are a quality substitute?

Should I replace the upper and lower hoses when replacing the radiator?

How do I "safety wire" the house clips?

[/quote

Does anyone have a bleed procedure that does not involve vacuum system and works: Yes, lift the bypass valve lever near the filler cap, leave the cap off , rev the engine to 4k and hold for 30 seconds and release the throttle, the air will come out in a big woosh and water as well so don't have your head over the bottle. Check level and do procedure again then check level. Replace the cap, keep the bypass open and drive the car. Closed the bypass after a few hours driving. Keep checking your levels regularly.

Are there non-Porsche branded coolants that are a quality substitute? Yes, but why take the risk, you will loose about 4 lts of coolant replacing 1 rad. at 50:50 that's only 2 lts of Porsche Liquid Gold anti-freeze.

Should I replace the upper and lower hoses when replacing the radiator?; if you have the cash to spare, nothing is wasted by changing for new, but unless you feel its damaged or going brittle personally I wouldn't. These cars are expensive enought to run!

How do I "safety wire" the house ( presume you mean Hose) clips?: You don't need to, if Porsche thought it necessary they would have done it already.

Hope that helps a little.

Edited by Sunnyside
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Thanks, Sunnyside.

My car didn't have Porsche coolant in it, so I decided to drain the hole system. I ordered a Uview tool to put new coolant back in (I'm going to start with all distilled water to convince myself that I can do it ... otherwise, I'll just ask a shop to flush with coolant).

The hoses seem to be in pretty good shape (nice and pliable, no cracks). So I'll just go ahead and replace the o-rings.

Re "safety-wire" - I have read that replacement radiators have a slightly different-sized breather hose input and members of 6speed recommend adding protection. Not sure how to go about doing it, though.

Thanks.

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