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Friend's 1990 Sentra - blown head gasketfredjacksonsan 07-12-2005, 09:51 PM Hey all, a friend was coming to visit me and blew his head gasket along the way. I'm going to help him replace it tomorrow, but we don't have a tech manual with the head bolt torque specs. Does anyone have the torque figures for the head bolts? Also, is there a figure for the valve train? Thanks much in advance.... fredjacksonsan 07-13-2005, 08:33 AM Sorry, it's the 1.6L 4 cylinder. Thanks... SR20B12 07-13-2005, 02:31 PM Sorry, it's the 1.6L 4 cylinder. Thanks... why even post??? if you don't know. head bolts bynthe manny says. bolt nos1-10 step1:22ft. step:2 47ft. bolt nos11-15 torque last , to 72in lbs. -5 3 ------ 7 13 15 10 8 ------9 11 14 12 6 2 -4 1 front of engine bay looking at head. this is your loosen and tighting pattern. hope this hlps need more info plz ask. chip fredjacksonsan 07-13-2005, 02:50 PM why even post??? if you don't know. I did know, just forgot to put it in last night. :D (Thanks btw for the response) :thumbsup: but I want to clarify: 1-10 22 ft-lbs, then 47 ft-lbs then 11-15 to 72 inch-pounds? We haven't taken it apart yet, so I'm thinking those bolts are a different size to have that much of a difference. Also, this is the 12-valve motor, 3 valves/cyl. Do you know if this is the dohc version, and any specific tricks of note? (I've done inline 6's and V-8's, but they were all pushrod) SR20B12 07-14-2005, 01:52 AM I did know, just forgot to put it in last night. :D (Thanks btw for the response) :thumbsup: but I want to clarify: 1-10 22 ft-lbs, then 47 ft-lbs then 11-15 to 72 inch-pounds? We haven't taken it apart yet, so I'm thinking those bolts are a different size to have that much of a difference. Also, this is the 12-valve motor, 3 valves/cyl. Do you know if this is the dohc version, and any specific tricks of note? (I've done inline 6's and V-8's, but they were all pushrod) No. I'm sorry I miss read the post It's not your falt. forgive the rudeness . your trying to get help the Ga16I is a SOHC . you could call it a bridge motor for the GA16DE 11-15 start at 22ls. than to a max of 72. the book says 56-72 so any where in ther should be fine. tighting them all to 22lbs and loosen than retighten to the 47 for 1-10,and 11-15. trick ? I don't know any on this engine sorry. other than go out and buy a manual just in case you run into somthing you don't know. hope this helps. chip 11-15 to 56-72 lbs. fredjacksonsan 07-15-2005, 08:42 AM Thanks for you help; but it's for naught. He'd had the head gasket replaced before, and the head is warped. We're going to look for a junkyard motor for him..... Appreciate the input! Didn't think you were rude..... vBulletin®, Copyright ©2009, Jelsoft Enterprises Ltd.
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