Head Stud Torque, Pushing Coolant @ 600Hp

[James_03]

That's interesting XKLABA as when I took the 4301's out some of them had bottomed out. How did you know to do that mate? Did you have some bottom out on you?

[XKLABA]

i could tell by looking at it it was going to be close so i checked as i went and first one bottomed out so all of them got the second washer

[r32-25t]

If threads were bottomed out then replace the studs as they will be stuffed and run 2 washers, trust me I've learnt the hard way due to duncan and foster being so dim witted they made the same mistake multiple times

[Dahtone Racing]

LOL what happened?

[r32-25t]

5 attempts to build a 26/30 which never made it off the driveway and my car now has a stock r33 26 in it

currently paying someone with a brain to do it properly so that I can sell it off in pieces

[Dahtone Racing]

Didn't someone on here work there or something???

[r32-25t]

Yep

[GD51LA]

engine oil and arp lube are two different torque settings

even arp state this fact (I remember reading)

[Humbla]

When I had a metal head gasket put on my ol 33 my mechanic said to only use water for the first 1000 ks,cause coolent would weep,

guess what he was right. :-)

[Humbla]

When I had a metal head gasket put on my ol 33 my mechanic said to only use water for the first 1000 ks,cause coolent would weep,

guess what he was right. :-)

[Humbla]

oops double post. :-)

[mitchum]

When I had a metal head gasket put on my ol 33 my mechanic said to only use water for the first 1000 ks,cause coolent would weep,

guess what he was right. :-)

Haha, seriously? why on earth would that make any difference?

[scotty nm35]

He used an MLS gasket without resurfacing, or using Hylomar I would say.

[D_Stirls]

He used an MLS gasket without resurfacing, or using Hylomar I would say.

I was going to ask this, beat me too it.

[r33_racer]

A third on that one too.

head and block need to be machined to correct surface finish to help mls gasket seal properly. Helps that the faces are flat also...

[Dose Pipe Sutututu]

After some SAU searching, looks like I have the same issue on a completely stock RB25 with 23psi going through the motor.

Was at Wakefield yesterday and after the 4th session noticed my overflow was spewing out water however the water temps never went past 95 degrees. Straight away knew the head was lifting, dropped the boost a little down to 18psi and it seem to be ok. Car probably saw about 9 sessions with each being driven hard - still manage to drive the car home in one piece.

So now a question, can I just simply just try re-torque the head down without removing anything and just hope that it won't lift the head? I'm trying not to spend any money on the motor at all as I'm pretty happy with the power/response etc. (money to be spent on suspension instead).

[Blackkers]

http://www.kudosmotorsports.com/catalog/arp-stud-kit-head-arp-arp-2000-2024301-2024309-nissan-skyline-r32-gts4-gtst-r33-gts25t-r34-25gtt-rb20det-rb25det-rb25det-neo-p-489.html

[Dose Pipe Sutututu]

http://www.kudosmotorsports.com/catalog/arp-stud-kit-head-arp-arp-2000-2024301-2024309-nissan-skyline-r32-gts4-gtst-r33-gts25t-r34-25gtt-rb20det-rb25det-rb25det-neo-p-489.html

hahaha.. that involves a cost, however in saying that has anyone successfully removed the head studs and replaced them without taking the cams out? I know the factory cams has a indent/recess so you're able to slide a socket/extension down.

If I was to remove the head and redo the head, I might as well just buy an used RB25DET NEO motor.

[Missileman]

So replace each bolt with the ARP item individually, in the appropriate order, can't say if you will need the cams out, but is that an issue anyway?

[scotty nm35]

If the head hadn't already lifted I would say to try replacing with ARP's one at a time, but as it is now too late, there is a good chance the gasket is damaged.