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What size tap is used for the head bolts?
Posted 22 June 2006 - 05:00 PM
But I would like to chace the head bolt holes with a tap. I was guessing that the head bolts were a 12 - 125 pitch, but that doesn't seem to be the case. The head bolts I took out of the engine matches the 125 pitch but the diameter of the bolt is smaller then a 12. The head bolt fits a 7/16" NF nut but if I lay a 7/16" NF tap lengthwise on the headbolt the threads do not match the entire length of the tap.
If they made such a tap I would say it is a 11 - 125. So whats up? :cool:
Turbone. next time I get first call on the special o-rings. Jason thought that was funny I knew you. In case, I overnight four of them from him. I also have some extra turbo gaskets for ya.
And another FYI. The mechanics at Puyallup Subaru need to go back to school. They couldn't tell me what size the head bolts are and also told me that it wasn't possable to chase the threads because they are to far down the hole. He also said that I must own an Impreza because of the o-ring deal. WTF I guess the customer is never right.
Anyway, I am more interested in my tap issue. I need my MPG saver back.
Posted 22 June 2006 - 05:44 PM
Posted 22 June 2006 - 05:46 PM
Posted 22 June 2006 - 06:00 PM
Posted 22 June 2006 - 06:07 PM
Posted 22 June 2006 - 06:31 PM
Posted 22 June 2006 - 09:37 PM
Just clean the headbolts and use a good clean one as a tap. Thats what I plan on doing. I just need to get away from here and DO IT. I did managed to clean up one head and cam case, it sparkles:D I've spent more time cleaning than assembly. As usual:cool:
Posted 22 June 2006 - 10:04 PM
Yes, the thought of using a good head bolt has crossed my mind. My neighbor is a heavy equipment mechanic. He usually has what I need.
Posted 23 June 2006 - 06:19 AM
Posted 23 June 2006 - 05:37 PM
Posted 24 June 2006 - 12:58 AM
I got the heads and intake on mine. Got to put a different turbo on, the old one was toast. Might have it running by the first of the week.
Oh yeah, new clutch also.
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