Head Help

bajaman72 · Post by **bajaman72** » Fri Jul 22, 2011 8:54 pm

Does anybody know what I need to plug these holes in he head. I beleive they are for some smog stuff that my original engine didn't have.

RSorak 71Westy · Post by **RSorak 71Westy** » Sat Jul 23, 2011 12:25 am

no need to plug it doesn't go anywhere

bajaman72 · Post by **bajaman72** » Sat Jul 23, 2011 7:49 am

If there is no need to plug, then by all means I will not plug. I did notice the other head has something in it already. It looked like a flathead screwdriver would of gotten it out, bit it wouldn't budge.

Another quick question?? Do I need a puller to get the fan hub off? Thanks for the help.

Post by **Amskeptic** » Sat Jul 23, 2011 9:49 am

bajaman72 wrote:If there is no need to plug, then by all means I will not plug. I did notice the other head has something in it already. It looked like a flathead screwdriver would of gotten it out, bit it wouldn't budge.

Another quick question?? Do I need a puller to get the fan hub off? Thanks for the help.

You must plug that hole! It is the air injection tube that goes down into the exhaust ports. You do not want serious noise and exhaust blasting into the engine compartment. It is a fine thread, and we need to find the size. If anyone has an air injection tube laying around, we sure could use its size.
Colin
(fan hub, get a stout piece of metal between case and behind fan bolt holes, then screw in fan bolts. They will pull hub off crankshaft. Be prepared for a "pop")

bajaman72 · Post by **bajaman72** » Sat Jul 23, 2011 2:36 pm

Thanks for filling in the blanks for me Colin. I thought they needed to be plugged. So, does anyone have an air tube injection port thingy they could measure for me? I do have another set of heads that were rebuilt, but was saving them for the old engine rebuild. Maybe easier to swap the heads??
I will have to attempt pullin the hub off tomorrow. Today is my birthday (40) and I have a feeling between the brews, swimming pool, and Bon fire I will be in no condition to attempt this.

bajaman72 · Post by **bajaman72** » Thu Jul 28, 2011 3:33 pm

Thanks...dished pistons and such ;)
Colins handy hub removal worked like a charm. Is anybody running these air tubes or have a set for a measurement? Dunno how the local Ace would feel about me walkin around with a head trying different fittings n such.

bajaman72 · Post by **bajaman72** » Thu Jul 28, 2011 3:43 pm

I finally found the info searching The other Site and didn't have to read 30 pages of peoples bs. Here is what I found:

Some people rebuild their engine using these heads and have no idea why there is soot in the engine compartment or why it's so noisy. The holes have to be plugged up after the pump is removed. Two tubes are screwed into the holes and they are difficult to remove sometimes without stripping the threads. After removing the tubes you need to plug the holes and the best way to do it is with a 10x1 valve adjusting screw and some Loctite 518. If the threads are in bad shape you will have to chase them with a tap to clean up the threads.

Sound about right?? Thoughts??

Gypsie · Post by **Gypsie** » Thu Jul 28, 2011 5:26 pm

bajaman72 wrote:I10x1 valve adjusting screw and some Loctite 518.

Pure Genius...

Bleyseng · Post by **Bleyseng** » Fri Jul 29, 2011 7:43 am

yes, use old 10mm valve adjusters to plug the holes with loctite..

bajaman72 · Post by **bajaman72** » Fri Jul 29, 2011 10:59 am

Does anybody know where I can purchase these 10x1 valve adjuster screws? It appears the nut can be purchased just about anywhere, but the screw i can not find.

chitwnvw · Post by **chitwnvw** » Fri Jul 29, 2011 11:21 am

Scott at german supply had them.

I used a bolt and then tack welded the head of the bolt to the head(actually Hippie did it), sometimes the head would get warm enough and the expanded enough that the bolt would pop out!

sped372 · Post by **sped372** » Fri Jul 29, 2011 12:22 pm

PM me your address. I think I've got some in my basement that aren't good for their original purpose any more. You're welcome to have a couple!

bajaman72 · Post by **bajaman72** » Fri Jul 29, 2011 2:41 pm

Thanks Sped. Pm sent. When they arrive I'll see if I can match em up and find 1 more. Thanks.

sped372 · Post by **sped372** » Fri Jul 29, 2011 5:22 pm

Didn't get your PM. But, how many do you want? I have 8 old adjusters.

bajaman72 · Post by **bajaman72** » Sun Jul 31, 2011 7:46 am

Sent another one. Let me know if you received it.

Itinerant Air-Cooled

Itinerant Air-Cooled

Head Help

Head Help

Re: Head Help

Re: Head Help

Re: Head Help

Re: Head Help

Re: Head Help

Re: Head Help

Re: Head Help

Re: Head Help

Re: Head Help

Re: Head Help

Re: Head Help

Re: Head Help

Re: Head Help

Re: Head Help