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Old 01-07-2013, 08:24 PM   #1
lavid2002
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Member#: 226864
Join Date: Oct 2009
Location: southern NJ
Vehicle:
2005 PSM WRX
18.5lb. 93 oct, DP, UP

Default EJ25 SOHC cylinder head torx bit. What size is this?

I'm trying to take apart some EJ25 heads from a SOHC 2000s forester. A T40 bit is too small and I am very close to rounding out a bolt, and a T45 doesn't fit (Not just corrosion, the clean bolts on the inside won't fit a T45 either.)

Anyone know what size this is? I went to harbor freight and sears and they only have T40 T45 T47 and T50. WTF? Nothing in between T40 and T45?

Thanks for the input.

-Dave
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Old 01-07-2013, 09:04 PM   #2
cal_look_zero
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It's a T40 plus. Total pain in the ass to find in a store, but you can order one:

http://www.mactools.com/shoponline/p...us-driver.aspx

For your reference:


Quote:
A Torx variant, Torx Plus, introduced about 1990 when the original Torx patent was expiring, is designed to allow greater torque, and to minimize wear. The specifications for these licenses are held by Textron. Standard Torx drivers can be used to drive Torx Plus screws, but not to full torque because of the loose fit. Torx Plus drivers will not fit standard Torx screws. They are shortened to "Torx TX".
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Old 01-08-2013, 08:20 AM   #3
Storm
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Torx-plus #40, more commonly found labeled as IP40.

Jay
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Old 01-08-2013, 10:41 AM   #4
lavid2002
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18.5lb. 93 oct, DP, UP

Default

What a complete pain in the ass. I won't be buying that bit lol. I ended up getting the bolts off last night by drilling and cutting them. Worked out great (Would have been better if they were a standard torx size)

Thanks guys.
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Old 01-08-2013, 12:51 PM   #5
BeKnwn
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When I did my heads it was a torx 30 for the inner cam plate and torx 40 fir the outer I just went to o riellys for them
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Old 01-08-2013, 01:01 PM   #6
tibug
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Quote:
Originally Posted by lavid2002 View Post
What a complete pain in the ass. I won't be buying that bit lol. I ended up getting the bolts off last night by drilling and cutting them. Worked out great (Would have been better if they were a standard torx size)

Thanks guys.
That sucks that you had to cut them. They are a standard Torx size (edit: I guess I'm wrong...the IP40 is slightly larger than the T40), but the IP40 bit is much stronger than the standard T40 bit. I bought one here at McMaster Carr. It really is necessary to have the IP40 in order to remove the bolts (without cutting them ). I still felt like I had to put all my weight downward on the wrench to avoid stripping the bolts.

I would have been scared to drill/cut all of those bolts because I think it would get metal shavings all over the valvetrain which would be especially difficult to clean because they'd stick to the residual oil. Ah well...if it works for you. You really should buy an IP40 if you plan on doing more of these...$10 is worth not having to destroy all of the bolts...incidentally, how much did you spend on replacement bolts??
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Old 01-09-2013, 12:18 PM   #7
lavid2002
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2005 PSM WRX
18.5lb. 93 oct, DP, UP

Default

You bring up an interesting point.

But you see, the reason I was so curious to remove these bolts is because the car had a rod knock. I have no interest in rebuilding these heads only in selling them. I have seen a few cars where the rod knock was driven on for so long the cam bearings get eaten to **** and the heads are no good because no one is going to pay a machinist to fix those cam bearings. Monetarily it's just not worth it.

The bearings look fine to me by the way

Whoever I sell them to will have to purchase some new bolts (4 at least)

I am a big advocate of purchasing tools as I need them because I will use them again, but this was a weird incidence.
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