How to remove tach drive when it breaks off??!!!

[substudio]

Since I upgraded from a mechanical tach to an electric one I decided to do remove the tach drive, and replace it with a tach hole plug from the newer engine block's.

I searched the user forum and the previous post¹ claimed that it shouldn't be a problem removing it.

Well....
I removed the screw with no problem but when I attempted to remove the tach drive I noticed it was a little hard to remove, so I began tapping it with a hammer and a wooden
block, and low and behold. 



Any ideas on how I can remove the tach drive from the block?

I'm thinking of either:
>gluing the housing back on and attempting to rotate it until i can get it loose.
or
>cutting off the cog and drilling a hole so I can insert a screw extractor until I can get the broken piece off...




(1) http://gstwins.com/gsboard/index.php?topic=26915.0

[ohgood]

i'm having trouble seeing anything but red rtv, and allot of it. ouch.

[dgyver]

You may need to pull the valve cover and push it out. They normally slide out easily but yours may be damage preventing an easy removal.

Also a good time to clean off all that sealant.

[ben2go]

The Suzuki valve cover seal is reuseable as long as you remove it gently with the valve cover.Mine has been removed 4 times by me and countless other times by the PO.




Revised
I should also add my engine has no leaks.

[substudio]

Will do.

Thanks.

[cd]

tap it, or not, and put a bolt or screw into it thats firm enough to some grip and then, pull

[substudio]

actually, i had started drilling a bunch of holes around the worm drive to wear out the housing it broke off from.

but I might try inserting a screw and pulling it out that way

[seamax]

Mind me asking what electrical tach you replaced the stock with?

[substudio]

I don't mind at all.

I replaced it with a newer GS tach off of an '05 model I found on ebay.