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need help with torque of VL head bolts Options

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Gazza2005au		#1 Posted : Tuesday, 31 May 2005 9:31:11 AM(UTC)
Rank: Member Reputation: Groups: Registered Joined: 24/05/2005(UTC) Posts: 14		im replacing a cracked head on my mums VL i need to know what i need to set the torque wrench to when doing up the head bolts? thanks in advance
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Guest		#2 Posted : Tuesday, 31 May 2005 10:24:55 AM(UTC)
Rank: Guest Groups: Guests Joined: 2/09/2015(UTC) Posts: 43,977 Was thanked: 5 time(s) in 5 post(s)		According to the GMH VL manual...NOTE these are Newton Metres NOT foot Pounds. 1: 29 NM 2: 78 NM 3: Loosen off 4: 29 NM 5: 100 - 105 degrees or 78 - 88 NM Cheers...Dave

Guest		#3 Posted : Tuesday, 31 May 2005 10:57:31 PM(UTC)
Rank: Guest Groups: Guests Joined: 2/09/2015(UTC) Posts: 43,977 Was thanked: 5 time(s) in 5 post(s)		Thanks for replying much appreciated does anyone know what 29NM/78NM converts into foots per pound?

Guest		#4 Posted : Tuesday, 31 May 2005 11:42:59 PM(UTC)
Rank: Guest Groups: Guests Joined: 2/09/2015(UTC) Posts: 43,977 Was thanked: 5 time(s) in 5 post(s)		1 Newton Metre = 0.737561033 foot pounds so 29 NM is 21.3 Ft/Lb, 78 NM is 57.5 Ft/Lb and 88 NM is 64.9 Ft/Lb...just to be pedantic. HTH. Cheers...Dave

Guest		#5 Posted : Tuesday, 31 May 2005 11:48:09 PM(UTC)
Rank: Guest Groups: Guests Joined: 2/09/2015(UTC) Posts: 43,977 Was thanked: 5 time(s) in 5 post(s)		ok now i have the info can u brake it down please what F/P do i do? is it 21.3F/P once i have done all the bolts to this torque than i do either 57.5-64.9F/P?

Guest		#6 Posted : Wednesday, 1 June 2005 12:58:26 AM(UTC)
Rank: Guest Groups: Guests Joined: 2/09/2015(UTC) Posts: 43,977 Was thanked: 5 time(s) in 5 post(s)		OK Gazza, Go and get a cup of coffee as this is not THAT short.... 1. Ensure that head and block mating surfaces are clean and dry. 2. Ensure that the new head gasket is correctly fitted to the block. 3. Ensure that the camshaft gear timing mark i

Guest		#7 Posted : Wednesday, 1 June 2005 7:28:57 AM(UTC)
Rank: Guest Groups: Guests Joined: 2/09/2015(UTC) Posts: 43,977 Was thanked: 5 time(s) in 5 post(s)		thanks dave, that info is like gold ;) much appreciated

Taz2		#8 Posted : Wednesday, 1 June 2005 4:13:55 PM(UTC)
Rank: Member Reputation: Groups: Registered Joined: 1/03/2005(UTC) Posts: 258		Yeah....watch out for those small corner bolts. If you forget to undo them when removing the head, you can very easily break that section of the head off. Bye bye head....or you just may be able to get them welded back on :-( You can also tighten the
		In thrust we trust
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Guest		#9 Posted : Wednesday, 1 June 2005 7:49:56 PM(UTC)
Rank: Guest Groups: Guests Joined: 2/09/2015(UTC) Posts: 43,977 Was thanked: 5 time(s) in 5 post(s)		do u think i would be better of getting my original head welded or buy another head from the wreckers and get it crack tested? if welding is a better option who would i see about it im in sydney thanks guys

Guest		#10 Posted : Wednesday, 1 June 2005 9:23:42 PM(UTC)
Rank: Guest Groups: Guests Joined: 2/09/2015(UTC) Posts: 43,977 Was thanked: 5 time(s) in 5 post(s)		It all depends....How well has the cooling system in your mum's VL been looked after? If it has been well looked after or at least not totally ignored, get it repaired. You have no idea how bad the head from a wrecker will be until you get it test

Guest		#11 Posted : Wednesday, 1 June 2005 10:15:12 PM(UTC)
Rank: Guest Groups: Guests Joined: 2/09/2015(UTC) Posts: 43,977 Was thanked: 5 time(s) in 5 post(s)		Dave, im not sure about the cooling system we just bought the car for my mum off my mother inlaw i can post a picture of the crack once i get the head off i am having a huge drama trying to pull off the timing belt cover (bottom half) so far i have the al

Guest		#12 Posted : Wednesday, 1 June 2005 10:16:34 PM(UTC)
Rank: Guest Groups: Guests Joined: 2/09/2015(UTC) Posts: 43,977 Was thanked: 5 time(s) in 5 post(s)		sorry forgot to add the current motor i am working on was a reco about 9 months ago but brother inlaw blew the head not to long ago

Guest		#13 Posted : Thursday, 2 June 2005 12:18:03 AM(UTC)
Rank: Guest Groups: Guests Joined: 2/09/2015(UTC) Posts: 43,977 Was thanked: 5 time(s) in 5 post(s)		It sounds like the cooling system wasn't bled properly. This is a painful exercise on a VL but very necessary because the head is higher than the top of the radiator (very silly design by Holden...). If the head was done only 9 months ago, and assuming

Guest		#14 Posted : Thursday, 2 June 2005 1:04:27 AM(UTC)
Rank: Guest Groups: Guests Joined: 2/09/2015(UTC) Posts: 43,977 Was thanked: 5 time(s) in 5 post(s)		as i was pulling the motor down there was alot of air in the top bleeder bolt my brother inlaw insalled the reco motor in the car he is qualifyed but there is no doubt he flogged the crap out of the motor in summer im thinking this would have caused the c

Guest		#15 Posted : Friday, 3 June 2005 1:09:15 AM(UTC)
Rank: Guest Groups: Guests Joined: 2/09/2015(UTC) Posts: 43,977 Was thanked: 5 time(s) in 5 post(s)		i now have the head off i cant see any cracks how big of a crack am i looking for? i have turned the head upside down i will leave it for tonight so the white/grey oil can drain away i will than degrease the oil out so i can see whats going on good idea?

Guest		#16 Posted : Friday, 3 June 2005 1:43:39 AM(UTC)
Rank: Guest Groups: Guests Joined: 2/09/2015(UTC) Posts: 43,977 Was thanked: 5 time(s) in 5 post(s)		The crack can be minute up to very large. Have a look at the head gasket and see if there are any clues on that. Also, have a look in the cam tunnel. I have a very vague memory that VL's can crack the head in there too. Yep, you'll have to give it a go

Guest		#17 Posted : Friday, 3 June 2005 2:58:55 AM(UTC)
Rank: Guest Groups: Guests Joined: 2/09/2015(UTC) Posts: 43,977 Was thanked: 5 time(s) in 5 post(s)		i pulled all the gear off the head just left the cam shaft in place gave it a good degrease 2 times than pulled out the trusty touch and spoted a crack in the cam tunnel as u said its about 20-25mm long and about as wide as a peice of hair maybe thinner i

Guest		#18 Posted : Friday, 3 June 2005 4:16:07 AM(UTC)
Rank: Guest Groups: Guests Joined: 2/09/2015(UTC) Posts: 43,977 Was thanked: 5 time(s) in 5 post(s)		Whew! My memory wasn't as bad as I feared :-) It shouldn't be too hard for a head reconditioning place to fix. If they are reasonably good, they should know all the places that VL's can crack heads by now. Take it to a head reconditioning place, the

Guest		#19 Posted : Friday, 3 June 2005 7:42:55 AM(UTC)
Rank: Guest Groups: Guests Joined: 2/09/2015(UTC) Posts: 43,977 Was thanked: 5 time(s) in 5 post(s)		Dont forget to bleed the air out of the block from the radiator, as this can cause trouble for your block gazza.......... radiator is lower then engine block, so air will raise to highest point

Guest		#20 Posted : Friday, 3 June 2005 7:14:50 PM(UTC)
Rank: Guest Groups: Guests Joined: 2/09/2015(UTC) Posts: 43,977 Was thanked: 5 time(s) in 5 post(s)		thanks guys, i will look around for a head reconditioner if its cheaper than getting naother head i will do that :-) i know about the air being bled whats the best and most easiest way do this? i want to get it right the first time ;-)

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