04-07-2016, 10:32 AM
Any idea what the thread pitch on the flanged intake manifold mounting nuts. Had to pull the head on the '98 Tracker 1.6, had some non-factory nuts and some rounded. I want to get them all 12-mm wrench size like factory, instead of mixed 12's and 13's that came off.
Pretty sure they're for an M8 stud, but not sure about thread pitch - maybe 1.25??
And guess what, the cylinder head didn't have allen-socket head bolts, it had hex-heads with big washers, that some Idiot used to "repair" the engine.
You can imagine what happened next, lots of leaks and not much torque on the head bolts!!!!!![Dodgy Dodgy](https://fixkick.com/forum/images/smilies/dodgy.gif)
BTW, thanks for the excellent writeup in your "Pull" section, once I got the big bracket out from under the intake, it was a pretty easy job to "float" the manifold to the side.
Thanks..........ed
Pretty sure they're for an M8 stud, but not sure about thread pitch - maybe 1.25??
And guess what, the cylinder head didn't have allen-socket head bolts, it had hex-heads with big washers, that some Idiot used to "repair" the engine.
You can imagine what happened next, lots of leaks and not much torque on the head bolts!!!!!
![Dodgy Dodgy](https://fixkick.com/forum/images/smilies/dodgy.gif)
BTW, thanks for the excellent writeup in your "Pull" section, once I got the big bracket out from under the intake, it was a pretty easy job to "float" the manifold to the side.
Thanks..........ed
'98 Tracker 4WD, 1.6-16V 4-door automatic, Scuba Blue (aka Scooby Blue)