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Jwbmarine compression check

rob_boyd

Member
i did the compresion check #1-

i did the compresion check #1-135 #3-135 #5-125
#2-125 #4-125 #6-120 i think # 3 is the one right under #1 #3 is the one thats no carbon and clean should i go ahead with removeing the head??
 
i went ahead a pulled the head

i went ahead a pulled the head the o rings looks old when i pulled the bolts around #3 cyl i had a little water come out ther is little beads of cylicon around the little port holes in the head is this right no gasget just the o rings
 
"yes,just o rings,..and on tho

"yes,just o rings,..and on those,this is one place u do use sealer....the blk sil sealer is recommended.i did not expect your comp to be good on that cyl(3).."
 
seal the complete head except

seal the complete head except for the little port holes or just around the holes you have been a very big help alot of thanks
 
"apply 1/16 bead around ea wtr

"apply 1/16 bead around ea wtr passage,inst o rings in block w/a light coat of grease,torque to 20-22 ft pounds......(right outa the bk for ya).----** do not seal around thermo seat area."
 
do you think the comp on all t

do you think the comp on all the cyl is ok for a 3year rebuilt motor the #6 was the only 1 i was concerd with
 
"comp was fine..altho,it is ri

"comp was fine..altho,it is right at 15 psi lower,which may--indicate a future problem"
 
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