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Old 04-12-2001, 11:34 AM   #1
Jay_UK
Scooby Specialist
 
Member#: 296
Join Date: Sep 1999
Location: Derby, Derbyshire, England
Post Need an answer

Hi guys,

I've gone and confused myself...

Can someone please tell me the type of bolt the 2.5 block uses (DOHC not that, that makes any difference).

Does the main block bolts have a washer on it ?

Is it silver or gold in colour ?

What size spline socket does it use 12mm or 14mm ?

Which of these looks like it:

<IMG SRC="http://www.firefox-technology.com/images/closed%20deck%20bolts.jpg" border=0>

<IMG SRC="http://www.firefox-technology.com/images/open%20deck%20bolts.jpg" border=0>

Anyone have a part number for them ? (two lengths, main bolts are longer, two front ones are shorter)

Cheers,

J.
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Old 04-12-2001, 11:45 AM   #2
ColinL
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Member#: 114
Join Date: Jul 1999
Chapter/Region: MWSOC
Location: Wichita, KS and Whoring, OT
Vehicle:
'03 Evo, Rice White
'01 Erion CBR 929

Post

I can answer for SOHC. If you think it's the same, fine.

They use 14mm 12 sided bolts which are silver. The center pair have red heads, the outer four have silver heads. I do think they have washers.

They look like the second pic.

[This message has been edited by ColinL (edited April 12, 2001).]
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Old 04-12-2001, 11:53 PM   #3
Jay_UK
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Join Date: Sep 1999
Location: Derby, Derbyshire, England
Post

Thanks for Colin,

I assume the washers dont slide off the bolts ?

I just need to confirm for sure these are the correct bolts I have... Can someone measure the length of the bolt, the diameter of the unthreaded bolt and the washer diameter.

Cheers,

J.
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Old 04-12-2001, 11:57 PM   #4
iBlueVirus
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Member#: 4679
Join Date: Mar 2001
Chapter/Region: BAIC
Location: detailaddict.com
Post

go to a subaru dealer and ask them for a shop manual. You will have a correct answer for sure.
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Old 04-15-2001, 11:27 AM   #5
Jay_UK
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Member#: 296
Join Date: Sep 1999
Location: Derby, Derbyshire, England
Post

Hi there,

I am trying to establish if the US blocks are the same as our 2.5 blocks.

Anyone ?

J.
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Old 04-15-2001, 04:25 PM   #6
kaos200
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Join Date: Oct 2000
Chapter/Region: SCIC
Location: SoCal
Post

You have 2.5s in england?
what cars do they come on?
sorry haven't heard of this at all,
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Old 04-15-2001, 08:57 PM   #7
98mpreziveRS
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Join Date: Feb 2000
Post

some of the forestors and such i think.

as for the blocks on the DOHC IF i recall right when i was messing around on my motor they were the silver colour 12 sided bolt which was a 14mm. can't remember the colour of the heads though..sorry. As for the washers.. i do remember them floating around on the bench

AND i knew i shoulda taken pictures a little over a year ago..sorry
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Old 04-16-2001, 06:10 AM   #8
ColinL
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Location: Wichita, KS and Whoring, OT
Vehicle:
'03 Evo, Rice White
'01 Erion CBR 929

Post

Jay, I believe the washer doesn't come off. If you need a part number, ask Ryan Cavalier at Irvine Subaru. His email is scoobyparts@hotmail.com , just tell him you have a 99 Impreza 2.5RS and need cylinder head bolts for it.
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