Starter Replacement - Stripped Starter Bolt - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Jozy · 08-30-2023, 07:24 PM

Hey all, my starter went out. Started doing the work today following the YouTube guide posted on the forum. Seemed easy enough, then taking off the lower bolt that holds the starter in was a PIA! Came out crazy stripped and not sure how the damage is on the transmission / engine block.

I'm looking into using a tap but the ones I've seen don't seem deep enough. Can I even use a tap without dropping the transmission?
Would it be a terrible idea to just secure it with one bolt?
Kind of at a dead end at the moment. What do yall suggest?]

blsfrs · 08-30-2023, 08:23 PM

What are the length of the bolts? It's possible the transmission has been out and someone put in a bolt that was too short. A longer bolt might catch enough threads to hold.

Jozy · 08-30-2023, 08:34 PM

It's an M10 x 1.25 about 3in long below the head. I'm pretty sure its factory I ordered a set from the dealership.
I did have my clutch replaced about 3 years ago I'm thinking that's when it got cross threaded.

NoHaveMSG · 08-30-2023, 09:10 PM

Drop trans and helicoil it. That hole is toast. Sorry.

Ultramaroon · 08-30-2023, 10:15 PM

I died a little inside.

Jozy · 08-30-2023, 10:36 PM

Been dead all day lmao
I was hoping there was an alternative but it's looking like dropping the tyranny might be the way.
I know a diy shop I can do it myself about 40 mins away from me.
Would it be dumb to hook up the new starter bolt it down with one bolt then drive out there to do the fix? I'm guessing it'd be fine but now I'm overthinking it a bit

humfrz · 08-30-2023, 11:33 PM

Quote:

Originally Posted by Jozy

Hey all, my starter went out. Started doing the work today following the YouTube guide posted on the forum. Seemed easy enough, then taking off the lower bolt that holds the starter in was a PIA! Came out crazy stripped and not sure how the damage is on the transmission / engine block.

I'm looking into using a tap but the ones I've seen don't seem deep enough. Can I even use a tap without dropping the transmission?
Would it be a terrible idea to just secure it with one bolt?
Kind of at a dead end at the moment. What do yall suggest?]

Well, Bubba suggests you get a new bolt, smear it up good with Loctite (Red), screw it in there and see if it holds.

(well now, at first Bubba just wanted to weld the starter in place, but, I talked him out of that -

)

Ultramaroon · 08-31-2023, 12:50 AM

Quote:

Originally Posted by Jozy

Been dead all day lmao
I was hoping there was an alternative but it's looking like dropping the tyranny might be the way.
I know a diy shop I can do it myself about 40 mins away from me.
Would it be dumb to hook up the new starter bolt it down with one bolt then drive out there to do the fix? I'm guessing it'd be fine but now I'm overthinking it a bit

That's actually not a bad idea. One screw will be enough for a while. Don't go cinching it down extra tight.

"dropping the tyranny" haha

Here's how I keep the engine from flopping forward.

Jozy · 08-31-2023, 10:26 AM

I've never fixed threads before. If I go that route do I need to up from a 1.25 to a 1.50 or what's the best way to go about that?
I looked into the heli coil and got even more confused ��

WNDSRFR · 08-31-2023, 10:27 AM

You could just leave the starter out and push start the car.

NoHaveMSG · 08-31-2023, 10:42 AM

Quote:

Originally Posted by Jozy

I've never fixed threads before. If I go that route do I need to up from a 1.25 to a 1.50 or what's the best way to go about that?
I looked into the heli coil and got even more confused ��

10mm is the diameter. 1.25 or 1.5 is the pitch of the threads. So if the stock bolt is 10mm x 1.25 then you need a 10mm 1.25 helicoil kit. The kit usually comes with a tap and drill bit in the instructions along with the insert tool. I’d recommend looking it up on YouTube. Should be a “how to” or three on there.

NoHaveMSG · 08-31-2023, 12:09 PM

Timeserts are also good. Just keep in mind it is really important you drill and tap the threads needed for the repair insert straight or you are going to have problems. Especially a bolt that long.

bcj · 08-31-2023, 12:34 PM

Quote:

Originally Posted by Ultramaroon

Here's how I keep the engine from flopping forward.

Just added a link to a knot diagram site in your engine strap thread.

Ultramaroon · 08-31-2023, 02:00 PM

Quote:

Originally Posted by bcj

Just added a link to a knot diagram site in your engine strap thread.

Yesss! Thanks!

08-30-2023, 07:24 PM	#1
Jozy Member Join Date: Apr 2020 Drives: 2015 Subaru Brz Limited Location: Arlington,Tx Posts: 14 Thanks: 0 Thanked 1 Time in 1 Post Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Starter Replacement - Stripped Starter Bolt Hey all, my starter went out. Started doing the work today following the YouTube guide posted on the forum. Seemed easy enough, then taking off the lower bolt that holds the starter in was a PIA! Came out crazy stripped and not sure how the damage is on the transmission / engine block. I'm looking into using a tap but the ones I've seen don't seem deep enough. Can I even use a tap without dropping the transmission? Would it be a terrible idea to just secure it with one bolt? Kind of at a dead end at the moment. What do yall suggest?]

08-30-2023, 08:34 PM	#3
Jozy Member Join Date: Apr 2020 Drives: 2015 Subaru Brz Limited Location: Arlington,Tx Posts: 14 Thanks: 0 Thanked 1 Time in 1 Post Mentioned: 0 Post(s) Tagged: 0 Thread(s)	It's an M10 x 1.25 about 3in long below the head. I'm pretty sure its factory I ordered a set from the dealership. I did have my clutch replaced about 3 years ago I'm thinking that's when it got cross threaded. Attached Images

08-30-2023, 10:15 PM	#5
Ultramaroon 義理チョコ Join Date: Sep 2014 Drives: a 13 e8h frs Location: vantucky, wa Posts: 31,889 Thanks: 52,177 Thanked 36,540 Times in 18,937 Posts Mentioned: 1108 Post(s) Tagged: 9 Thread(s)	I died a little inside. __________________ service manuals

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08-30-2023, 08:23 PM	#2
blsfrs Senior Member Join Date: Dec 2018 Drives: 2013 frs base Location: central Virginia Posts: 1,122 Thanks: 1,747 Thanked 943 Times in 480 Posts Mentioned: 12 Post(s) Tagged: 0 Thread(s)	What are the length of the bolts? It's possible the transmission has been out and someone put in a bolt that was too short. A longer bolt might catch enough threads to hold.

08-30-2023, 10:36 PM	#6
Jozy Member Join Date: Apr 2020 Drives: 2015 Subaru Brz Limited Location: Arlington,Tx Posts: 14 Thanks: 0 Thanked 1 Time in 1 Post Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Been dead all day lmao I was hoping there was an alternative but it's looking like dropping the tyranny might be the way. I know a diy shop I can do it myself about 40 mins away from me. Would it be dumb to hook up the new starter bolt it down with one bolt then drive out there to do the fix? I'm guessing it'd be fine but now I'm overthinking it a bit

08-31-2023, 10:26 AM	#9
Jozy Member Join Date: Apr 2020 Drives: 2015 Subaru Brz Limited Location: Arlington,Tx Posts: 14 Thanks: 0 Thanked 1 Time in 1 Post Mentioned: 0 Post(s) Tagged: 0 Thread(s)	I've never fixed threads before. If I go that route do I need to up from a 1.25 to a 1.50 or what's the best way to go about that? I looked into the heli coil and got even more confused ��

08-31-2023, 10:27 AM	#10
WNDSRFR Senior Member Join Date: Jan 2014 Drives: FR-S,GTI Location: Cocoa, Florida Posts: 1,155 Thanks: 228 Thanked 824 Times in 419 Posts Mentioned: 13 Post(s) Tagged: 0 Thread(s)	You could just leave the starter out and push start the car.

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