Brumby - EA81 cylinder head rocker assembly bolts - got a part number???

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Otago brumby
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Brumby - EA81 cylinder head rocker assembly bolts - got a part number???

Post by Otago brumby » Sun Oct 06, 2024 9:14 am

Hello all

just taken my EA81 out of the brumby for new cyl head gaskets, as there was a slight leak starting on no3

all came apart ok, but one of the 160mm+10mm bolts that hold on the rocker assembly on to the head, and act as Cyl Head bolts, is bent a few degrees at the start of the thread - this was above no3 cyl! - poss this is why it was leaking...!

So - need to replace - presume it is to a certain spec, and hopefully has a part number...?

presume I'll have to replace the pair on that side of the engine...
Any info on how to get a new pait of bolts -am in NZ

Cheers

Chris

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El_Freddo
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Re: Brumby - EA81 cylinder head rocker assembly bolts - got a part number???

Post by El_Freddo » Tue Oct 08, 2024 5:26 pm

G’day Chris!

That’s odd! I can’t help you with the part number as I don’t have any of the old school parts books which would be the easiest way to get the part number accurately.

The only other option I can think of is sourcing a second hand one. I’ll have a dig around in my parts stash as a good mate gave me some heads and there might be some bolts in there - no guarantee though.

Cheers

Bennie
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Bantum
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Re: Brumby - EA81 cylinder head rocker assembly bolts - got a part number???

Post by Bantum » Wed Oct 09, 2024 4:30 am

Looked 'em up on parts catelog I got from here :

item 2 : Stud 11 x 126.5 x 39 no: 800911120 ( 7 each side )

Not sure if that helps, as a search online couldn't find any ... :/

Cheeers, bantum ...

Add : I did find this however : https://partsnavigator.com.au/search?pcode=800911120

They appear to be available ( ex Sydney ) so would give them a call to see if they can deleiver to NZ ... :)

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Re: Brumby - EA81 cylinder head rocker assembly bolts - got a part number???

Post by El_Freddo » Wed Oct 09, 2024 6:41 am

Hey Bantum, not the studs, the two bolts that hold the rocker assembly to the head. These bolts are part of the head bolt system on the EA81.

Hopefully you have a part number for these!

Cheers

Bennie
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Re: Brumby - EA81 cylinder head rocker assembly bolts - got a part number???

Post by TOONGA » Wed Oct 30, 2024 2:18 pm

Otago brumby wrote:
Sun Oct 06, 2024 9:14 am
Hello all

just taken my EA81 out of the brumby for new cyl head gaskets, as there was a slight leak starting on no3

all came apart ok, but one of the 160mm+10mm bolts that hold on the rocker assembly on to the head, and act as Cyl Head bolts, is bent a few degrees at the start of the thread - this was above no3 cyl! - poss this is why it was leaking...!

So - need to replace - presume it is to a certain spec, and hopefully has a part number...?

presume I'll have to replace the pair on that side of the engine...
Any info on how to get a new pait of bolts -am in NZ

Cheers

Chris
Sorry Chris you will not get those bolts new I'm sure someone on one of the many facebook pages would be able to help you out.

AS you are in NZ I would start with the classic subaru network https://www.facebook.com/groups/1603473039901513

TOONGA
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TOONGA
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Re: Brumby - EA81 cylinder head rocker assembly bolts - got a part number???

Post by TOONGA » Wed Oct 30, 2024 2:27 pm

Otago brumby wrote:
Sun Oct 06, 2024 9:14 am
Hello all

just taken my EA81 out of the brumby for new cyl head gaskets, as there was a slight leak starting on no3

all came apart ok, but one of the 160mm+10mm bolts that hold on the rocker assembly on to the head, and act as Cyl Head bolts, is bent a few degrees at the start of the thread - this was above no3 cyl! - poss this is why it was leaking...!

So - need to replace - presume it is to a certain spec, and hopefully has a part number...?

presume I'll have to replace the pair on that side of the engine...
Any info on how to get a new pait of bolts -am in NZ

Cheers

Chris
Chris here is the page from the RHD 1980 parts book

https://imgur.com/4Us5a1G

it has the bolt you are looking for part 10

TOONGA
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Re: Brumby - EA81 cylinder head rocker assembly bolts - got a part number???

Post by Bantum » Sun Nov 03, 2024 5:03 am

El_Freddo wrote:
Wed Oct 09, 2024 6:41 am
Hey Bantum, not the studs, the two bolts that hold the rocker assembly to the head. These bolts are part of the head bolt system on the EA81.

Hopefully you have a part number for these!
Ah well not exactly, I only have the workshop manual :

Image

That states a bolt size of : 11 x 162 x 34 mm

If you can't get these bolts in NZ, I'd try a seaching for them in US or Japan ...

For refernce torque settings :

Image

Cheers, Bantum ...

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