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Old 09-15-2014, 04:05 PM
ah-kay ah-kay is online now
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Join Date: Mar 2009
Location: San Diego
Posts: 3,597
Am I nut??

Managed to change the HG and button up everything. The car started fine and ran great but it still overheat in no time. So basically all my effort comed to nothing. So it was a crack head afterall, the infamous #14 head. The head probably was damaged by the previous owner but it was pushed over the edge somehow by the long climb up the canyon. Now what next? I decided to use snake oil. I poured a bottle of 'Blue Devel', the HG sealant, into the radiator and it seems to have done wonder. I followed the instructions to the letter, of course. I have used it before with good result and it seems that it sealed the cracked head. My theory is that the quicker the engine overheats, the better the sealant will work. The sealant is made of Sodium silicate or liquid glass but it turns into glass when it receives a gush of heat. The hot combustion gas seals the crack head with glass so to speak. I have done about 400 miles, mostly freeway at 75mph, on the car without overheating, while it couldn't even be driven for 1 mile in the past without reaching 120C. The top radiator hose is soft to touch every morning. So far so good. However, the proof is in the pudding. I will report back after 5K, if it gets that far. Stay tune.

Will change out the head in case it is a short-lived euphoria.
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Not MBZ nor A/C trained professional but a die-hard DIY and green engineer. Use the info at your own peril. Picked up 2 Infractions because of disagreements. NOW reversed.

W124 Keyless remote, PM for details. http://www.peachparts.com/shopforum/mercedes-used-parts-sale-wanted/334620-fs-w124-chasis-keyless-remote-%2450-shipped.html

1 X 2006 CDI
1 x 87 300SDL
1 x 87 300D
1 x 87 300TDT wagon
1 x 83 300D
1 x 84 190D ( 5 sp ) - All R134 converted + keyless entry.
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