»  BC-BF Legacy Discussion »  Drivetrain
#Starter stud options for the 6spd

Custom Search
Login | Register




Post new topic Reply to topic  [ 16 posts ] 
Author Message
 Post subject: Starter stud options for the 6spd
PostPosted: Thu Nov 29, 2012 2:57 am 
Site Admin
Site Admin
Joined: Tue Oct 15, 2002 11:37 am
Posts: 25528
Location: Houston, Tx
As some of you know, the 6spds use an 8 bolt pattern vs. our 4 bolt pattern. With the newer 8 bolt pattern the lower starter mount is secureding using a bolt vs. the older setup of a stud and nut.

The lower starter mount hole on the 6spd has a diameter of 0.475" on the engine side and a diameter of 0.445 on the outer side. I mention this because somewhere in the middle it tapers down however, I don't have any way to measure that and determine where that takes place.

The stud on the 5spd is a M10x1.25 stud. The threaded part is about 5/8" on either side with a none threaded part in the middle. The total length of the stud is about 1.75".

I have two options I'm looking at, the first is to drill and tap the hole for a larger stud and then just drill out the hole on the starter. This is probably the easiest option. However with the size hole that's already there, I'm going to need to drill it out to .5" and then tap it for an M14x1.5 stud. This isn't too much larger, however on the starter side, I've got to go even larger to accomodate the stud passing through the opening. I don't have a size chart on how big an M14x1.5 bolt is though, and haven't looked it up yet.

The second option is to use a helicoil to try and reduce the size stud I'm using. However I don't know if it's really worth it to go through the added effort.

Thoughts?

What did those that have done this before do?

Thanks

_________________
Josh

surrealmirage.com/subaru
1990 Legacy (AWD, 6MT, & EJ22T Swap)
1997 Impreza OBS

If you need to get a hold of me please email me rather then pm


Profile  Offline
 
 Post subject: Re: Starter stud options for the 6spd
PostPosted: Thu Nov 29, 2012 3:24 am 
Fourth Gear
Joined: Mon Mar 08, 2004 2:30 am
Posts: 2161
Location: Auburn, WA
PM Jake. He did the 6 speed. And since they have a Subaru shop, I know they did it the "right" way.

_________________
Yes I have too many Subarus
No you can't have one
05 GD-STI
01- RS- Swapped-07 STI
00- GF
93 SS x2


Profile  Offline
 
 Post subject: Re: Starter stud options for the 6spd
PostPosted: Thu Nov 29, 2012 5:57 pm 
Site Admin
Site Admin
Joined: Tue Oct 15, 2002 11:37 am
Posts: 25528
Location: Houston, Tx
Thanks, I'll PM him and see what they did.

_________________
Josh

surrealmirage.com/subaru
1990 Legacy (AWD, 6MT, & EJ22T Swap)
1997 Impreza OBS

If you need to get a hold of me please email me rather then pm


Profile  Offline
 
 Post subject: Re: Starter stud options for the 6spd
PostPosted: Fri Nov 30, 2012 4:07 am 
Site Admin
Site Admin
Joined: Tue Oct 15, 2002 11:37 am
Posts: 25528
Location: Houston, Tx
Well I've been doing a little searching and finding an M14x1.5mm stud is pretty difficult. I think what I may do instead is buy a bolt, which I can find, cut off the head of the bolt, and then chase the threads at that end with a die to clean them up. I need around a 50 mm long bolt. I'm going to call a few hardware stores tomorrow and see what I can find. I'll also need to pickup a M14x1.5 die. I've got the tap, but not the die.

I'll keep everyone posted on what I end up doing.

_________________
Josh

surrealmirage.com/subaru
1990 Legacy (AWD, 6MT, & EJ22T Swap)
1997 Impreza OBS

If you need to get a hold of me please email me rather then pm


Profile  Offline
 
 Post subject: Re: Starter stud options for the 6spd
PostPosted: Fri Nov 30, 2012 6:06 am 
Fourth Gear
Joined: Wed Sep 19, 2012 3:58 am
Posts: 1060
Location: Plaistow,NH
order something on MSC? MSC industrial supply

_________________
Blue 94GT dead and steadily parting out.
Silver 93 Fwd N/A sedan undergoing repairs
93 Winestone TW project
92 SS scrapped by my landlord...


Profile  Offline
 
 Post subject: Re: Starter stud options for the 6spd
PostPosted: Fri Nov 30, 2012 2:58 pm 
Site Admin
Site Admin
Joined: Tue Oct 15, 2002 11:37 am
Posts: 25528
Location: Houston, Tx
I'll take a look there. I think what I may do before I go drilling holes is verify the starter bolt hole's diameter profile with a wax or filler. The M14 bolt is a rather BIG bolt....so if I can avoid using such a big bolt, that would be my preference.

_________________
Josh

surrealmirage.com/subaru
1990 Legacy (AWD, 6MT, & EJ22T Swap)
1997 Impreza OBS

If you need to get a hold of me please email me rather then pm


Profile  Offline
 
 Post subject: Re: Starter stud options for the 6spd
PostPosted: Fri Nov 30, 2012 4:21 pm 
Fourth Gear
Joined: Mon Apr 14, 2003 6:42 am
Posts: 1451
Location: spanaway, Washington
when i had the 2.2 in my car i drilled out the hole in the transmission and the starter then tapped the transmission for a 14x1.5 bolt (one of the rear control arm bolts). You have to tap it to a 14 because there is not enough meet in the tranny for the 12mil unless you helicoil it. i never had any issues with the larger bolt

bolt i used for reference-

Image

_________________
90' legacy built ej257 gt30r 6spd r180 and brembos Bitches 402whp @22psi :D -sexy red
94' Impreza wagon AWD 2.2ltr rally wagon FTW!


Profile  Offline
 
 Post subject: Re: Starter stud options for the 6spd
PostPosted: Fri Nov 30, 2012 6:42 pm 
Site Admin
Site Admin
Joined: Tue Oct 15, 2002 11:37 am
Posts: 25528
Location: Houston, Tx
Jake,

Thanks for the feedback! That's a pretty good idea. I guess I don't need to have a stud there, I could as easily use a bolt. I'll have to see if I have any of those rear control arm bolts in my bolt bags

_________________
Josh

surrealmirage.com/subaru
1990 Legacy (AWD, 6MT, & EJ22T Swap)
1997 Impreza OBS

If you need to get a hold of me please email me rather then pm


Profile  Offline
 
 Post subject: Re: Starter stud options for the 6spd
PostPosted: Sat Dec 01, 2012 2:43 am 
Site Admin
Site Admin
Joined: Tue Oct 15, 2002 11:37 am
Posts: 25528
Location: Houston, Tx
I think I've got it figured out based up what I have available. I picked up a 45 mm long M14x1.5 bolt at a local hardware store. It's diameter is right at 0.55". I am going to use that bolt, drill the starter hole on the transmission with a 1/2" bit, and tap that hole to M14x1.5. For the starter I'm going to drill the lower bolt hole to 9/16" or 0.5625". This should give enough clearance to pass the bolt through the starter bolt hole.

I already have the M14x1.5 tap and the 9/16" drill bit, so it just makes sense to go that route, rather than buying a whole bunch of new tools, etc.

I'm going to do it tomorrow, so I'll take pictures :)

_________________
Josh

surrealmirage.com/subaru
1990 Legacy (AWD, 6MT, & EJ22T Swap)
1997 Impreza OBS

If you need to get a hold of me please email me rather then pm


Profile  Offline
 
 Post subject: Re: Starter stud options for the 6spd
PostPosted: Sat Dec 01, 2012 5:06 am 
Second Gear
Joined: Tue Jul 06, 2010 7:47 am
Posts: 419
Location: Spokane, WA
I ran into this same problem having the 02 Forester tranny in my car. I had to do the same thing but the crappy tap/die set I had from Harbor Freight sucked and it was a pain getting the thing to stay straight.

_________________
93 Black Legacy SS
93 Legacy L sedan
93 Legacy Wagon
95 Impreza coupe- EJ22t swap, 02 Forester 5mt, 01 RS LSD rear diff, TD05, Robtune-550
98 RHD Legacy-Current build-EJ22E/96EJ25D, TD05, Robtune-550, 5spd swap
97 Outback-Wife's car, 5 spd swap


Profile  Offline
 
 Post subject: Re: Starter stud options for the 6spd
PostPosted: Mon Dec 03, 2012 12:29 am 
Site Admin
Site Admin
Joined: Tue Oct 15, 2002 11:37 am
Posts: 25528
Location: Houston, Tx
Well I worked on the starter bolt hole yesterday, and it came out good. The tap may have not be perfectly square with the hole, but the bolt threads and everything is good.

I used a 1/2" drill for the M14x1.5 tap and then used a 9/16" drill bit to drill out the lower starter bolt hole. I chamfered the holes with a step bit, which worked really good. However, in the process I broke one of the studs on the starter solenoid. So I've got to find a used solenoid or if it's not too expensive buy a new one.

Here are the pictures from the work:

http://www.main.experiencetherave.com/s ... spdswap/10

_________________
Josh

surrealmirage.com/subaru
1990 Legacy (AWD, 6MT, & EJ22T Swap)
1997 Impreza OBS

If you need to get a hold of me please email me rather then pm


Profile  Offline
 
 Post subject: Re: Starter stud options for the 6spd
PostPosted: Fri Sep 27, 2013 4:31 pm 
In Neutral
Joined: Fri Sep 23, 2011 5:40 pm
Posts: 35
so i just ran into this problem, Thinking im going to heli coil just for the sake of not having to drill out every starter this car goes through


Profile  Offline
 
 Post subject: Re: Starter stud options for the 6spd
PostPosted: Sun Sep 29, 2013 10:45 pm 
Site Admin
Site Admin
Joined: Tue Oct 15, 2002 11:37 am
Posts: 25528
Location: Houston, Tx
Hopefully you don't go through starters, but I can understand you not wanting to have to modify future starters.

_________________
Josh

surrealmirage.com/subaru
1990 Legacy (AWD, 6MT, & EJ22T Swap)
1997 Impreza OBS

If you need to get a hold of me please email me rather then pm


Profile  Offline
 
 Post subject: Re: Starter stud options for the 6spd
PostPosted: Tue Oct 01, 2013 1:44 pm 
In Neutral
Joined: Fri Sep 23, 2011 5:40 pm
Posts: 35
Legacy777 wrote:
Hopefully you don't go through starters, but I can understand you not wanting to have to modify future starters.


yea, I don't know maybe I'm over thinking it. I didn't remember it being this hard to find heli coil stuff. I just hope that the hole isn't already too big for the heli coil.


Profile  Offline
 
 Post subject: Re: Starter stud options for the 6spd
PostPosted: Sat Oct 12, 2013 6:43 pm 
Fourth Gear
Joined: Sat Aug 09, 2003 5:02 pm
Posts: 1893
Location: Greenville, SC
On my '06 5-speed swap I had a similar issue, so I just drilled and tapped it for one of the studs out of the rear diff rear cover and widened the hole on the starter to accept it.

_________________
Disclaimer: If anything I post is inaccurate, please correct me. I do not wish to add to the misinformation floating around on the internet.

That being said, everything I post is accurate to the best of my knowledge.

Rio Red '91 Legacy SS


Profile  Offline
 
 Post subject: Re: Starter stud options for the 6spd
PostPosted: Mon Oct 21, 2013 3:06 am 
In Neutral
Joined: Fri Sep 23, 2011 5:40 pm
Posts: 35
ok guys i got mine done but it was the wrx 5spd don't know how or if 6spd is different, but i did a helicoil with 10m bolt so i could retain 14mm socket and i didn't have to drill the hole, the tap went right in.


Profile  Offline
 

Display posts from previous:  Sort by  

Post new topic Reply to topic  [ 16 posts ] 


Who is online

Users browsing this forum: No registered users and 1 guest

Panel

Top You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
Search for:
Jump to:  

Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group
Dizayn Ercan Koc