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#11
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I use the reservoir cap to bleed. Both on street and race car(s).
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Rob T. 2006 Carrera S 2013 Cayenne GTS |
#12
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You really need to buy or borrow an AirLift type tool. I paid $75 for a new one.
https://www.amazon.com/OEMTOOLS-2444...nt+refill+tool I was introduced to these by a diesel truck specialist that told me all air has to be removed from the cooling system in high compression diesel engines or cavitation and vapor bubbles can occur that destroys cylinder walls, but that's another whole story. This tool requires you have an air compressor available as well. How it works is it has two valves and a vacuum gauge and a tube to your new coolant supply. You attach the tool to your reservoir fill and close one valve, the coolant supply, while turning on the other, the engine cooling system and pump fast moving air from the compressor thru a venturi (like an "old fashioned" carburetor pulling fuel from the bowls or a millipore filter from chemistry class). This creates a vacuum in the cooling system removing all of the air from inside hoses, radiator, block, heater core, etc. Once the vacuum gauge reads the proper vacuum, you close the valve to the venturi, wait to see if any air leaks, and if not, you open the second valve that is attached to your new bottle of coolant. The vacuum from inside the system draws the coolant into all of the systems high and low places without any air in the system. It's very clever. I've been using this on the race cars with no or minimal air from the bleed screw once up to temperature.
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Steve Potomac PCA Co-CI(retired) 89 944 Turbo Race car 85.5 944 NA son's 2015/2019/2020 944Cup and PCA Nat'l Champ racecar 94 968 1 of 11 Iris blue coupes 92 968 1 of 2 Tahoe Blue Cabriolets 98 993 C2S w/Aerokit II 77 911S Vintage race car project 70 Boss 302 86 Mustang SVO 08 F250 SD Diesel 15 Audi SQ5 "Noel spun! Noel spun! Don't do anything stupid, Dad." -the boy on the radio on the last lap of NASA race as the second place car spins behind me in T5 at Summit Point. Last edited by TurboPooch; 03-15-2018 at 08:32 AM. |
#13
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^^^spend my money^^^
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Rob T. 2006 Carrera S 2013 Cayenne GTS |
#14
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Will this draw coolant out of the system if there is anything left during a flush? Sometimes hard to get at engine and heater core drains when doing a flush.
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Tito 82 911 SC with 3.2 73 RSR project 97 328is 99 328is 97 Lexus SC300 Manual 86 TL (gone) 993 (gone) 75 911S (gone) |
#15
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It will to a degree but that is not it's purpose. You should normally drain as usual. It would be very hard to pull fluid that has pooled at the bottom of the block or radiator tanks that don't deform for instance. Remember that any small amounts of remaining fluid will get sucked out from the vacuum created with the air coming from the compressor. It will get shot out of the hose at a pretty fast rate and will make one heck of a mess.
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Steve Potomac PCA Co-CI(retired) 89 944 Turbo Race car 85.5 944 NA son's 2015/2019/2020 944Cup and PCA Nat'l Champ racecar 94 968 1 of 11 Iris blue coupes 92 968 1 of 2 Tahoe Blue Cabriolets 98 993 C2S w/Aerokit II 77 911S Vintage race car project 70 Boss 302 86 Mustang SVO 08 F250 SD Diesel 15 Audi SQ5 "Noel spun! Noel spun! Don't do anything stupid, Dad." -the boy on the radio on the last lap of NASA race as the second place car spins behind me in T5 at Summit Point. |
#16
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Quote:
i have always done it with the screw rather than cap and have never needed any hose squeezing. pretty simple process. now....the M10 engine is a different story..
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Marshall ---------------- 95 M3 97 M3 Last edited by mlytle; 03-16-2018 at 05:59 AM. |
#17
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Quote:
-Paddy
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95 993 16 GTI 02 BMW Spec E46 #27 01 Boxster 86 944- AER/Chump #33 20 F250 Tremor |
#18
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Thanks for all the advice and the suggestion on tool (@TurboPooch) and the offer (@Paddy)
I am going to try the bleeding sequence again tomorrow a couple of times and see how it goes. I did take a look at the reservoir, which I had left filled to the top, and it had gone down about halfway. Will update with results, hopefully good news.
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FR E36 M3/4/5 - Sold 86' 911 - Sold 82' SC - Sold |
#19
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Results
I was able to fill up and bleed the system a few times using the methods mentioned here. After that my idling temperature decreased and stabilized to around 207°.
I also did some troubleshooting on the auxiliary electric fan and discovered my low speed relay is bad. The high speed fan works but I never let the temperature get high enough for it turn on. I did test it using my old sensor and a heat gun, it worked fine. Some notes/observations:
Thanks again to all for the help, I plan on some more testing today to make sure the system has no more air in it.
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FR E36 M3/4/5 - Sold 86' 911 - Sold 82' SC - Sold |
#20
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E36 temp gauge is not a real gauge. More like an idiot light. It will stay straight up over a huge temp range.
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Marshall ---------------- 95 M3 97 M3 |
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