The stud on the exhaust manifold by the head is MIA and so are the threads.....It was probably helicoil at some point.

 

Looking at the part it seems like an intermediate piece that is bolted to the head, am I correct, can you get this part from Subaru? I looked at all the online catalog that are listed on this forum, but none make even a mention of that part.

 

I found this pict of the EA82 here (I have the EA81) but it looks similar:

 

http://en.wikipedia.org/wiki/File:SubaruEA82.jpg

 

so the question will be can the parts at the exhaust manifold is a removable part, here they are still attached.

 

Thank you

 

Michel

84GL

 

PS: realized that it is my first post.... while I registered first in 08..... I guess I found most of the infos using the search function.

Edited February 17, 201016 yr by letank
adding pict link

That would be the Air Suction Valve spacer - most have a port on the side that connects to a 19mm diameter steel tube that runs to the ASV's. Some vehicles that only have a single ASV have "blank" spacer's that do not have the port drilled out.

 

You should be able to heli-coil it or just oversize it with a tap to 7/16 x 20 and make/buy a new stud in that size.

 

The spacer's aren't threaded in the stock configuration - the stud goes THROUGH the spacer and into the head. So your missing threads are either not missing at all, or you need to heli-coil the head. The 7/16x20 tap will make threads into the spacer as well as into the head - use a bottoming tap to get the last few and the thread a stud all the way up into the head.

 

GD

GD, thanks for the reply, it seems clearer now.

 

Michel

84 GL

74 wagoneer

i usually replace the studs on all my subies eventually couse of this problem, the studs i like to use are a standard coarse threan into the head and a fine thread on the pipe side, and thredlock the hell out of em, havn't has any problems with them since.

Fixed, the small shop owner looked at it and fixed both sides for $80. I took a peak at it when the owner returned, so I believe that they managed to extract the broken stud.... and I got a nice bottle of cabernet for the help, which I had to declined... I cannot.

 

Thanks for the help.

 

Michel