Torque value for fastening intake stacks to heads
#2
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I think the specs for these are something really small like the valve covers. I did mine hand tight. The rubber seal on the bottom of the stack provides the seal.
What are you doing taking these out?
What are you doing taking these out?
#3
Nordschleife Master
Thread Starter
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All were cracked around all 3 fastening points, seal at base was brittle and falling into the port, lots of gunk around the outside base of each makes it seems like it was blowing out somehow.
![](https://img.photobucket.com/albums/v512/PumpXRS/Album%202/IMG_2972a_zpsae82b58c.jpg)
Note spray over top of valve cover.
![](https://img.photobucket.com/albums/v512/PumpXRS/Album%202/IMG_2984av2_zpsd17265ed.jpg)
Failing seals falling into intake port, also note crack on intake manifold, barely visible top right. All corners on all intake manifolds were cracked like that.
![](https://img.photobucket.com/albums/v512/PumpXRS/Album%202/IMG_2972a_zpsae82b58c.jpg)
Note spray over top of valve cover.
![](https://img.photobucket.com/albums/v512/PumpXRS/Album%202/IMG_2984av2_zpsd17265ed.jpg)
Failing seals falling into intake port, also note crack on intake manifold, barely visible top right. All corners on all intake manifolds were cracked like that.
#4
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Yep...same as mine (except for the oil blowing out). It gets hot, the plastic get brittle and crack. When I took mine out to replace, the stacks were just about to crumble.
#5
Technical Guru
Rennlist Member
Rennlist Member