CalaisTurbo New Tags
User Name: Password:

Go Back   calaisturbo.com.au > Technical > Engines, Turbos, Exhausts, Intercoolers
Calais Turbo Advertising

Reply

 

Thread Tools
Old 06-09-13, 19:40   #1
86SLVLT
Semi street
 
86SLVLT's Avatar
 
Join Date: 06-04-08
Location: WA, Mt. Tom Price
Car: Minitubbed, caged, e85 & gas vl turbo
Trader Rating: (9)
head lifting

Having a problem with my head trying to divorce the block now that I've started pushing the engine.

Ive got arp head studs and a cometic mls head gasket. Just wondering what other people have done to fix it if you've encountered it. Planning on new head studs, new head gasket, plane the head and check the block deck as a start.

any suggestions are welcome
__________________
PROFAB
Professional Fabrication
(03) 6273 5057

Last edited by 86SLVLT; 18-09-13 at 07:10.
86SLVLT is offline   Reply With Quote
Old 28-09-13, 23:46   #2
EVLRB30
9.11@153.11 33psi
 
EVLRB30's Avatar
 
Join Date: 29-01-09
Location: SA, country
Trader Rating: (4)
Most times it's the tune that causes these sort of issues, think out side the square, bigger head studs etc isn't normally the answer
EVLRB30 is offline   Reply With Quote
Old 29-09-13, 11:29   #3
grunter01
YEEHAA
 
grunter01's Avatar
 
Join Date: 29-10-08
Location: Sydney, western suburbs
Car: 26/30 vl calais
Trader Rating: (12)
what ftp have you got the head studs at? i have 37psi in mine now with 120ftp on each head stud.
__________________
ENVIRONMENTAL PROTECTION EQUIPMENT 0410757949
grunter01 is offline   Reply With Quote
Old 29-09-13, 18:08   #4
Althoats
Player
 
Join Date: 14-07-08
Location: NSW, Wagga Wagga
Car: R31 Silhouette GTS1
Trader Rating: (2)
running 35psi in the tyres
.
Althoats is offline   Reply With Quote
Old 29-09-13, 19:35   #5
86SLVLT
Semi street
 
86SLVLT's Avatar
 
Join Date: 06-04-08
Location: WA, Mt. Tom Price
Car: Minitubbed, caged, e85 & gas vl turbo
Trader Rating: (9)
Had no timing in it evl. Got 112nm on the studs grunter which is what arp recommend. Over tightening would cause them to stretch and not actually clamp tighter wouldn't it??
__________________
PROFAB
Professional Fabrication
(03) 6273 5057
86SLVLT is offline   Reply With Quote
Old 29-09-13, 21:13   #6
grunter01
YEEHAA
 
grunter01's Avatar
 
Join Date: 29-10-08
Location: Sydney, western suburbs
Car: 26/30 vl calais
Trader Rating: (12)
i have 13mm head studs so i dont have a problem running higher torque. But i know alot of cars running same 120 as me and never had an issue but also know people with 90 and no issue also????? how do you know the head is lifting? is it pushing out water?
__________________
ENVIRONMENTAL PROTECTION EQUIPMENT 0410757949
grunter01 is offline   Reply With Quote
Old 30-09-13, 07:00   #7
86SLVLT
Semi street
 
86SLVLT's Avatar
 
Join Date: 06-04-08
Location: WA, Mt. Tom Price
Car: Minitubbed, caged, e85 & gas vl turbo
Trader Rating: (9)
It was pumping water out after each pull on the dyno as soon as we turned the boost up. So I put a pressure gauge in the cooling system to check.
__________________
PROFAB
Professional Fabrication
(03) 6273 5057
86SLVLT is offline   Reply With Quote
Old 30-09-13, 11:07   #8
sherman89
Player
 
sherman89's Avatar
 
Join Date: 18-07-05
Location: Brisbane, Southside
Car: 'ONO 747' 8.81@157
Trader Rating: (7)
Send a message via MSN to sherman89
I agree with evlrb30 to an extent.

The only time I've lifted a head is when an injector has fails. I did a few things as precautions really.. 1/2inch studs @ 110ftlb, oringed the block and a Jpc girdle. Ran 37pound with the 7175 with 11mm studs @ 90 ftlb and a commetic gasket, it lifted the head when an id2000 failed.
sherman89 is offline   Reply With Quote
Old 30-09-13, 13:48   #9
grunter01
YEEHAA
 
grunter01's Avatar
 
Join Date: 29-10-08
Location: Sydney, western suburbs
Car: 26/30 vl calais
Trader Rating: (12)
it isnt always the tune but most of the time is cant be. Mine pushed the head up on maatouks dyno and pressed out water each run, i took it home and re-torqued the head down and was fine up to 37psi and climbing. There was nothing wrong with the tune that was in it i just needed to redo the studs.
__________________
ENVIRONMENTAL PROTECTION EQUIPMENT 0410757949
grunter01 is offline   Reply With Quote
Old 30-09-13, 14:38   #10
Duke57TT
Missile Performance
 
Duke57TT's Avatar
 
Join Date: 19-03-07
Location: NSW, Queanbeyan
Trader Rating: (18)
Send a message via MSN to Duke57TT
Are you pulling the threads up on yours Kirk? It was always an old trick to give it a few more ft/lbs but you ran the risk of damaging the thread.

Seeing as you have gone to 13mm I take it, you drilled and tapped them out. Did you helicoil the block or just retap the threads?

What plug temp are you guys running?
__________________
Rubber Braided and Teflon Braided Hose For Sale.Click Me! Add us on Facebook!! Email - missileperformance@live.com.au
Duke57TT is offline   Reply With Quote
Old 30-09-13, 15:17   #11
vltnitron
Gold Members
 
vltnitron's Avatar
 
Join Date: 25-11-04
Location: SA, northern
Trader Rating: (30)
i found with mine that i had to run 2 washers on those arp head studs.
not sure whether it was a **** batch of studs. but the nuts bottomed out on the shank of stud, before the gasket had 100% crush.
__________________
10.6 manual radials...
vltnitron is offline   Reply With Quote
Old 30-09-13, 16:50   #12
grunter01
YEEHAA
 
grunter01's Avatar
 
Join Date: 29-10-08
Location: Sydney, western suburbs
Car: 26/30 vl calais
Trader Rating: (12)
Quote:
Originally Posted by Duke57TT View Post
Are you pulling the threads up on yours Kirk? It was always an old trick to give it a few more ft/lbs but you ran the risk of damaging the thread.

Seeing as you have gone to 13mm I take it, you drilled and tapped them out. Did you helicoil the block or just retap the threads?

What plug temp are you guys running?
i have always had 12mm head studs since owning it but now with the new rebuild i have gone 13mm. I dont know how the new ones are done as i mate builds my engines and he just does what he wants for r&d and i fit it in the car. Hopefully new combo will make near the 1000rwhp threw the glide so the studs will be getting a work out...
__________________
ENVIRONMENTAL PROTECTION EQUIPMENT 0410757949
grunter01 is offline   Reply With Quote
Old 30-09-13, 18:16   #13
86SLVLT
Semi street
 
86SLVLT's Avatar
 
Join Date: 06-04-08
Location: WA, Mt. Tom Price
Car: Minitubbed, caged, e85 & gas vl turbo
Trader Rating: (9)
Ive got 33-35 psi in it with the 7675. Ill check the tension on the studs again before I pull it down. A couple of others have said to mirror finish the deck and head, cosworth mls gasket and 13mm studs. I had the injectors flow tested not so long ago but it might be worth checking again? Its one thing after another with this engine! Would the cometic gasket be ****ed now that its lifted?
__________________
PROFAB
Professional Fabrication
(03) 6273 5057
86SLVLT is offline   Reply With Quote
Old 30-09-13, 20:18   #14
sherman89
Player
 
sherman89's Avatar
 
Join Date: 18-07-05
Location: Brisbane, Southside
Car: 'ONO 747' 8.81@157
Trader Rating: (7)
Send a message via MSN to sherman89
Yeah def get the injectors cleaned/checked, I've been doing that basically every time I use the car. Yeah you will need to replace the gasket.
sherman89 is offline   Reply With Quote
Old 01-10-13, 08:32   #15
grunter01
YEEHAA
 
grunter01's Avatar
 
Join Date: 29-10-08
Location: Sydney, western suburbs
Car: 26/30 vl calais
Trader Rating: (12)
I would replace the gasket but mine lifted and all I did was redo the head studs tighter and then never had an issue.
__________________
ENVIRONMENTAL PROTECTION EQUIPMENT 0410757949
grunter01 is offline   Reply With Quote
Old 01-10-13, 15:28   #16
caged
Player
 
Join Date: 02-08-13
Location: Brisbane, wynnum manly
Car: patrol tow car
Trader Rating: (0)
Quote:
Originally Posted by vltnitron View Post
i found with mine that i had to run 2 washers on those arp head studs.
not sure whether it was a **** batch of studs. but the nuts bottomed out on the shank of stud, before the gasket had 100% crush.
I had a set of studs like that all I had to was get a m11 bottoming tap because the threads didn't go all the way down on my first block which I hurt then got a new block Nissan where kind enough on that block the threads where all the way down so didn't need to retap that block studs screwed down far enough that the nuts only have around 3-4threads exposed
caged is offline   Reply With Quote
Old 01-10-13, 16:46   #17
vltnitron
Gold Members
 
vltnitron's Avatar
 
Join Date: 25-11-04
Location: SA, northern
Trader Rating: (30)
glad im not the only one that had this problem caged. it was easier for me at the time to drop another oem washer on.

My tuner said he doesnt like them cometic head gaskets, said he's had a few leak when running big boost.
Myself i use a tomie rb26 steel gasket and havent had a problem. running 36-38psi
__________________
10.6 manual radials...
vltnitron is offline   Reply With Quote
Old 01-10-13, 17:57   #18
86SLVLT
Semi street
 
86SLVLT's Avatar
 
Join Date: 06-04-08
Location: WA, Mt. Tom Price
Car: Minitubbed, caged, e85 & gas vl turbo
Trader Rating: (9)
I had the same problem when I first fitted the studs. But when the donk was rebuilt they cleaned all the gunk and stuff out of the threads like caged has. Seriously tossing up going to a dohc head now if it doesn't come right with a new gasket and a bit tighter..
__________________
PROFAB
Professional Fabrication
(03) 6273 5057
86SLVLT is offline   Reply With Quote
Old 01-10-13, 18:58   #19
GM-087
Player
 
Join Date: 10-05-06
Location: VIC, south east suburbs
Car: VLT
Trader Rating: (4)
can you get stronger 11mm studs ???
GM-087 is offline   Reply With Quote
Old 01-10-13, 19:17   #20
grunter01
YEEHAA
 
grunter01's Avatar
 
Join Date: 29-10-08
Location: Sydney, western suburbs
Car: 26/30 vl calais
Trader Rating: (12)
Quote:
Originally Posted by 86SLVLT View Post
I had the same problem when I first fitted the studs. But when the donk was rebuilt they cleaned all the gunk and stuff out of the threads like caged has. Seriously tossing up going to a dohc head now if it doesn't come right with a new gasket and a bit tighter..
just buy my complete car lol

---------- Post added 01-10-13 at 19:18 ----------

Quote:
Originally Posted by GM-087 View Post
can you get stronger 11mm studs ???
yes i run 13mm
__________________
ENVIRONMENTAL PROTECTION EQUIPMENT 0410757949
grunter01 is offline   Reply With Quote
Old 01-10-13, 20:03   #21
caged
Player
 
Join Date: 02-08-13
Location: Brisbane, wynnum manly
Car: patrol tow car
Trader Rating: (0)
I'm starting to stress a little now I have been only at about 20 psi till now in a couple of weeks I am doing a retune with about the same boost 35-38. I had a cometic gasket but after hot lapping at the drags because it was origin night 8 passes in like 2 hours it started to push water out so I out with motor straightened the head and decked the block I used a mls permaseal gasket and I haven't had a problem I even reused it once while the engine was getting machined I got a wrecker bottom end so I could keep racing and had no problems then so fingers crossed the new one can handle the boost fingers crossed
caged is offline   Reply With Quote
Old 01-10-13, 21:19   #22
86SLVLT
Semi street
 
86SLVLT's Avatar
 
Join Date: 06-04-08
Location: WA, Mt. Tom Price
Car: Minitubbed, caged, e85 & gas vl turbo
Trader Rating: (9)
Quote:
Originally Posted by GM-087 View Post
can you get stronger 11mm studs ???
arp do L19 series studs but I don't think they come in the correct lengths for our engines.

how much grunter?? pm me haha
__________________
PROFAB
Professional Fabrication
(03) 6273 5057
86SLVLT is offline   Reply With Quote
Old 02-10-13, 06:38   #23
grunter01
YEEHAA
 
grunter01's Avatar
 
Join Date: 29-10-08
Location: Sydney, western suburbs
Car: 26/30 vl calais
Trader Rating: (12)
I can get them in the correct length... I will get the price for you.
__________________
ENVIRONMENTAL PROTECTION EQUIPMENT 0410757949
grunter01 is offline   Reply With Quote
Old 02-10-13, 07:37   #24
sherman89
Player
 
sherman89's Avatar
 
Join Date: 18-07-05
Location: Brisbane, Southside
Car: 'ONO 747' 8.81@157
Trader Rating: (7)
Send a message via MSN to sherman89
It worked out cheaper for me to go half inch studs than it was to buy l19, but I had the engine out already.. If you don't wanna pull engine then l19 makes sense. In saying that rips swear by using 11mm studs in all their engines... As do many people.
sherman89 is offline   Reply With Quote
Reply

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT +10. The time now is 07:42.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.