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3.4 to 3.6 swap 2000 996 C2

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Just to update my saga. B) After the engine let go in late November it sat for 2 months with that oil/water pancake batter in the system. The car is having trouble cooling and the coolant is muddy with oil again :angry: We thought we might be able to use the original radiators but that is not the case.

I have talked to quite a few people and they have told me that if that gunk sits in the radiators for any length of time the radiators will never work properly. :huh:

I was warned by Jake Raby (I spoke to hime before I decided to go with the conversion) that I would probably need new radiators after a intermix problem.

So there you go....Another expense.... :o The car is getting the final electronics tune up (and a bunch of other little issues) and new radiators today. Should have the car back by Friday.

So if your engine does let go (and I hope it doesn't) and has an intermix issue I would suggest flushing the system immediately. Maybe that will save you some expense for new radiators if you intend to replace the motor.

Update again after I get the car back. Should be awesome.. :clapping:


Edited by phillipj
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My car is festering in my garage with the intermix issue despite new oil cooler, and multi-flush procedure myself.

Actually I was wondering if I will need new radiators whenever I get enough jack to get a rebuild/new engine.

Guess you just answered my question. Another question - did you replace all coolant lines as well?

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Phillip - sorry to hear about the problem with the radiators, but I am still jealous of the new 3.6. Just curious, did you try to remove the radiators and flush them with hot water and detergent. Seems like they should clean out with enough flushing. Wonder how all the others who have had engines replaced after intermix did with their radiators? I am still waiting for warmer weather to start work on my intermixz problem. have the AC compressor off finally and I am going to remove and pressure test the Oil cooler, just wishful thinking on my part, but what the heck, can't afford a new engine right now.

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Jake Raby told me that no matter how much you try to clean them (the radiators) they will never be the same, As we know heat is the main enemy of engines so it's not that much of an expense in the big picture.

There are some chemicals that are effective in cleaning the radiators but they are not legal in California.

My car was running hot even in cold weather. That is definetly a problem.

No I haven't replaced the coolant lines. I hope I don't have to. I have heard that I will live with a muddy coolant resivoir for the rest of the cars life. No way to get all the oil out unless you replace everything.

At this point maybe I'll get Carbon fiber/kevlar rims and have the THE most expensive 996 that isn't worth anything (except to me lol!)

I'm starting to feel like one of those kids that puts $70k of mods into his Acura...... :unsure:

I'm getting a new canvas top too because of an incident at another shop (LONG STORY) But I know the owner very well and his insurance is going to pay for the top. So at least I will have somthing new I didn't have top pay for :clapping:

I'll update on Friday when I get the car back.


Edited by phillipj
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