2010 Mercury 250 XS
1B791202
pt# 842777A19
Looking for torque specs and sequence pattern for powerhead to exhaust adaptor plate and
exhaust adaptor plate to mid section.
Thanks in advance.
2010 Mercury 250 XS
1B791202
pt# 842777A19
Looking for torque specs and sequence pattern for powerhead to exhaust adaptor plate and
exhaust adaptor plate to mid section.
Thanks in advance.
Upper Mounts: 50 lbs/ft.
Lower Mounts: 90 lbs/ft.
Adapter Plate to Driveshaft Housing (8mm bolts- four each) 25 lbs/ft.
Adapter Plate to Driveshaft Housing (10mm nuts): 50 lbs/ft.
Powerhead: Essentially the same as all other 3L. 3 Steps:
-Snug
-25 lbs/ft
-First EIGHT get 40 lbs/ft ***
*** Nuts 9-10, under cylinder #6 are NOT torqued in the final step.
Hope this helps!
Dual Mercury Master Technician- for Mercury Outboards, Mercruiser and Mercury Racing at European Marine in Greenville, SC.
Still consider myself a "Marine Apprentice" after 47 years (learn something new every day).
Mercury Parts, Mercury Outboards, Smartcraft & Accessories, Injector Service, TDR Reeds- BBC Sponsor
THANKS DON!!!!!
10mm nuts would mean 6mm stud or bolt size, there abouts. I am confused 50 ft lbs would break them for sure if 6mm studs. Makes sense for a 10mm stud though
Straighten me out Don
Some times I am a little slow, this did not mean wrench size, it meant the parts description size right...
Last edited by lpugh; 05-17-2018 at 09:11 PM.
Thank You Leon Pugh
Dual Mercury Master Technician- for Mercury Outboards, Mercruiser and Mercury Racing at European Marine in Greenville, SC.
Still consider myself a "Marine Apprentice" after 47 years (learn something new every day).
Mercury Parts, Mercury Outboards, Smartcraft & Accessories, Injector Service, TDR Reeds- BBC Sponsor
^^^^^^ ^^^^^^