Bianca's Camshaft

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Willy Fisterbottom
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Location: NSW

Post by Willy Fisterbottom » Thu Jul 31, 2014 12:27 pm

My parts man from Penrith Subaru (going back to the 70's) told me otherwise. My N/A EA81 hydraulic lifter engine has the 3 piece pushrods and no lock tabs on the adjusters. My EA81T has the one piece pushrod and lock tabs on the rockers.

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Brumby Kid
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Post by Brumby Kid » Thu Jul 31, 2014 4:16 pm

My pushrods have end caps that fall off and I can adjust the rockers

Steptoe what do you think about my valve clearance? What do you reccomend?
When life gives you a corner, drop a gear, pitch, and stomp the loud pedal
Bianca: 1991 Subaru Brumby
My First / Project car

EA81 Rebuilt by Tony Knight from knight Engines
2" body lift
25" 185r14 Yokahama Delivery Star, light truck tyres
2" Sports exhaust
Rear Aguip step/bar
Liberty seats
"Bianca"
[SIGPIC][/SIGPIC]
Dads Car: 02 Impreza WRX STi
Mums Car 08 Liberty Wagon

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steptoe
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Post by steptoe » Fri Aug 01, 2014 8:27 am

do what I did ....thought about it......the valves are only going to ride if there is no clearance and less than no clearance (tight) - correct ? Allowing for possibility that it may get hotter than normal op temp (gaps may get smaller or does metal expand when hot ? or expand enough to close the gaps ?) so, prepared for quick rocker adjusting I got engine to op temp, whipped the cover off and set them on one head to 4 thou each, cover back on, back to op temp, whipped other side off, did same . 14 years good enough trials ?

Last pair of heads just fitted up to B3 took numbers off tag off my 20/60 cam - 6 & 8 thou cold. Yet to drive it, still, noise amps in tin rockers :(

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Brumby Kid
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Location: Belair S.A.

Post by Brumby Kid » Fri Aug 01, 2014 8:51 am

Ahh too easy, so no damage if too tight. Just going to have to work out what an appropriate size is now.
When life gives you a corner, drop a gear, pitch, and stomp the loud pedal
Bianca: 1991 Subaru Brumby
My First / Project car

EA81 Rebuilt by Tony Knight from knight Engines
2" body lift
25" 185r14 Yokahama Delivery Star, light truck tyres
2" Sports exhaust
Rear Aguip step/bar
Liberty seats
"Bianca"
[SIGPIC][/SIGPIC]
Dads Car: 02 Impreza WRX STi
Mums Car 08 Liberty Wagon

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steptoe
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Posts: 11582
Joined: Thu Oct 06, 2005 10:00 am
Location: 14 miles outside Gotham City

Post by steptoe » Fri Aug 01, 2014 11:02 am

Better sit at the front of the class Cam. Did I say no damage if too tight ? If they are tight they will likely cause a miss, lower comp and maybe burn a valve. If their is a gap, surely some gap is not tight. Tight is no gap and riding on valve.

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