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The bolts go In but wont tighten could I jut put a bigger bolt on?

helicoil!!!!

I would try a new bolt

I did try a new bolt same thing.

When I buy a heli-coil kit do I need to take the bolt with me?

Looks like steel bolt into aluminum and has stripped aluminum into the bolt threads. Helicoil is a good fix . Seems you will need oversize drilling and mandatory perpindicular (90 degree) drilling. If you (or a friend) are good with tools you might be able to tap to the next size bolt directly into the aluminum. The stripping may be the relsult of over tightening. Use a torque wrench and the proper value for the unlubricated ( or lubricated ) bolt. See chart this forum.

Yes, take the old bolt with you, the helicoil kit will have the tap and instructions you need, don't be drilling at it first.

Thats what the thread look like

OOOOh, quite nasty.... May be too far gone....

Do I need to use a drill for this kit?





OEM/3/8 in. - 16 Fix-A-Thread repair system (25606) | Thread Repair | AutoZone.com

No, if that is for the same size the old bolt was, or was your old one metric?

Just tap in the tap, keep the direction straight/perpendicular.

I bought this can I put the threader on to my drill and use It like that?

LaWn GuY said:

I bought this can I put the threader on to my drill and use It like that? <img src="http://www.lawnmowerforum.com/attachments/tecumseh-engine-forum/22637-starter-bolt-stripped-20140808_220046_android-jpg"/><img src="http://www.lawnmowerforum.com/attachments/tecumseh-engine-forum/22638-starter-bolt-stripped-20140808_220128_android-jpg"/>

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You can put it on the drill but it will break.
Use a wrench I think 5/16 turn it in a couple turns then out then back in a couple more.

Is It a Tap wrench i need??

LaWn GuY said:

Is It a Tap wrench i need??

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No you can use a common wrench just go easy

Unless you drill deeper or drill to next oversize a tap will probably only clean out a damaged hole. Same size deeper is risky-make sure there is material available without hitting somthing . Drilling for the 1/4-20 (consult a tap chart for drill size) you have is likely to wipe the few remaining good threads you have unless you center the piece in a vise and lock it down. I guess you are going freehand since the engine is not apart. A problem (likely) will take you to the helicoil. Try using a square to keep the drill vertical or you will not obtain 360 degree clamping under the bolt head and your fastener will break due to flex/work hardening. While this may seem simple it is not to get it right. Consider a local machine shop.

Thanks everyone but I only had my drill with me and everything turned out perfect.

LaWn GuY said:

Thanks everyone but I only had my drill with me and everything turned out perfect.

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Good job.
Glad you got it fixed.