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#1
12-14-2002, 02:57 PM
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Should I re-torque my head after new gasket?
Should I re-torque my head after new gasket?
68 250S M108? or M180?
__________________
Ed 1981 300CD (Benzina) 1968 250 S (Gina) 266,000 miles! 1983 Alfa Romeo GTV6 (Guido) 1976 Jaguar XJS-saved a V-12 from the chevy curse, what a great engine! 1988 Cadillac Eldorado (better car than you might think!) 1988 Yamaha Venture (better than a Wing!) 1977 Suzuki GS750B 1976 Yamaha XS 650 (sold) 1991 Suzuki GSX1100G (Shafty Gixser) 1981 Yamaha VX920RH (Euro "Virago") Solex Moped 1975 Dodge P/U camper "Time spent in the company of a cat, a beer, and this forum, is not time wasted!" 
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#2
12-14-2002, 06:50 PM
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Actually I need to do mine (M130) as I have driven if for about 300 miles after replacing the gasket. I woul diamgine that you'd have to as well for yours but I don't know for sure.
__________________
MB 72 250 M130.923 114.011 170k The Beauty
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#3
01-04-2003, 05:26 AM
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On the models up to the 250 (six cylinder 220 S and 220 SE) the procedure was to torque the head cold to: 29 ft lbs, 44 ft lbs, 52 ft lbs. Then warm it up to 80 degrees C and tighten it to 65 ft lbs. Drive it 12 miles and check it at 65 ft lbs. Reset the valve clearance. Drive it 300 miles and check the head bolts again at 65 ft lbs. My manauls don't specify a different procedure for the 250.
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#4
01-04-2003, 05:38 AM
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Robby,
Thanks for the reply. It just seemed that 52 lbs was kinda weak. And I just read the owners manual (recently acquired) that says to tighten bolts on a warm engine.
__________________
Ed 1981 300CD (Benzina) 1968 250 S (Gina) 266,000 miles! 1983 Alfa Romeo GTV6 (Guido) 1976 Jaguar XJS-saved a V-12 from the chevy curse, what a great engine! 1988 Cadillac Eldorado (better car than you might think!) 1988 Yamaha Venture (better than a Wing!) 1977 Suzuki GS750B 1976 Yamaha XS 650 (sold) 1991 Suzuki GSX1100G (Shafty Gixser) 1981 Yamaha VX920RH (Euro "Virago") Solex Moped 1975 Dodge P/U camper "Time spent in the company of a cat, a beer, and this forum, is not time wasted!"
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#5
01-07-2003, 03:17 AM
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FORGET about what the manuals say . . .
Many of the manuals were written WAY BACK . . . Go by the sheet that comes with the gasket set . . . as gasket technology has drastically changed since the manuals were written . . . MANY modern head gaskets are a ONE TIME torque gasket that replace the OLDER types that require re-torquing . . .
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