January 1, 201511 yr I has one strip like that. Searched online and found a heli coil or equal kit. It worked.
January 1, 201511 yr Author So far what I have gathered regarding this is. Tap size is 11mmx1.25 Helicoil kits are rare for this size... I had read something that the tap for the head bolts is actually longer than the bolt and that it may be possible to get a longer bolt , chase the thread again and use a longer bolt perhaps, an extra washer to adjust bolt length in the taping..... Looking for some insight and suggestions...
January 1, 201511 yr Author Probably good to say again.... that the vehicle did run hot on several ocassions.... It did not run into the read....... It has been cold enough here to avoid that with running the heater... Still it did get up in temp... Which I believe is the cause of my problem........ The temp issue has been remedied..... with a new thermostatic switch
January 1, 201511 yr Author Didn't see the posts ran onto page two... Sorry, DaveT I missed your post... till after I added again... Yeah, I will look online. DaveT Did you put the Helicoil in while the engine was still in car? Wondering...... Thanks, Micky
January 1, 201511 yr I rebuilt on a stand. I have spare engines. The M11x1.25 repair kit I found is Coil - Sert P/N:IK405-11 Made in USA, even.
January 1, 201511 yr I'd be skeptical of a Helicoil here. Some of the head bolts are very close to water and oil passeges. Not much extra meat around them..I know on an EJ some of the holes a Helicoil would not work. 7/16ths fine thread is so close to m11 that it can be used. 1 thread difference over a 2 1/2" run. I've replaced EJ head bolts with 7/16th fine thread B9 rod (high grade all thread) as head studs. Drive the rod in tight to the bottom.....it won't ever come out. This allows you to catch teh extra threads at the bottom.....although if the hole is badly stripped it may not be enough to hold. I'm running an EJ22 in my wheeler like this right now.
January 2, 201511 yr Author So take a piece of 7/16 B9 fine threaded rod and thread that in.... To Avoid the larger diameter hole of a Helicoil.... AND Don't chase the threads (of original thread) Just thread rod in........ I like this idea...,,,, any idea how much extra thread sits at the bottom?
January 2, 201511 yr Author So I called the local fastener place... They well stock in bolts and the like..... I am looking for 7/16 fine thread B9 threaded rod.... If I could be pointed in the right direction, anyone know where to get this? or what kind of places would have such a thing...... Thanks, Micky
January 2, 201511 yr Author Found grade B7 7/16 fine thread...(rod 3') At a local Fastenal... but I have to order it... can have it by Monday....... This may be the best I can get.... Schrug... Schrug.... I will keep looking.....
January 5, 201511 yr Try mcmaster-carr. You can call them too. They will have a comparable or best available product. Edited January 5, 201511 yr by Hsoj
January 5, 201511 yr Author Thanks.... Good to know... I used them in the past bought some fuel hose..
January 13, 201511 yr Author So here is a picture of the head. All frankensteined up......... Showing it's (threaded rod) poppin' out itz neck...... Initially, It was only one striped taping in the block at Bolt#5... Then as I was tightening... at the last torque sequence... The other one blew out.... (lower right) #8(i am guessin').... So I had to do that one..... I did that one while the head was still on...... cut some more rod and threaded it in. I ended up only finding grade 7..... rod... it is 7/16 fine thread..... I cleaned the debri out of the the taping with a tiny screw driver and just threaded it in... It was a little nerving.... When to decide to stop threading it in... I did measure carefully, buy still it was hard to tell when.... It was done.. due to how it felt..... and well, you only get one try at this.... I double nutted the rod and cranked it in..... I used the conventional flat washer the was origininally there and put a lock washer on top of that..... It seems to be holding...... So I believe this occurred due to excessive heat..... It has been cold here, but I got stuck in traffic on the highway a couple of times... and she got hot above the halfway mark. not into the red but, close... maybe a 1/4 inch away....... My thermostatic switch had failed..... so electric fan was not coming on.... I had ripped out the AC and the mechanical fan........ So I think this is a story with a happy ending..... car is running good......... If it fails.... I will add to this post.....
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