#Any particular reason why there's this much gap on my intake rocker arms?

1 messages · Page 1 of 1 (latest)

mellow night
light parrot
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Is the camshaft like... There?

balmy blaze
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why were they removed?

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and who removed/installed them

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and yeah does it have a camshaft

mellow night
balmy blaze
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well then I guess something's there

mellow night
# balmy blaze why were they removed?

I was replacing the whole cylinder head. When my friend took the "new" cylinder head from a junk car, he took the intake rocker arms off to get better access to the cylinder head bolts

light parrot
mellow night
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Yep. Oh well, now to find out why this is the case lmao. Any ideas?

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And I wondered why the car wouldn't start lmao

balmy blaze
mellow night
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Yep, lmao

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or they do, it's just they open at the very end of the intake stroke

pale sigil
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Does it have VVL? If so youve got the spring on the wrong way

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Pretty sure it doesnt but its sorta a shit angle

mellow night
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It does have VVL, it's an ej253 I believe. I have two cylinder heads, when I put the rocker arm on the old cylinder head, it fits perfectly, very little play on the rocker arm. When I put it on the new one, there's just this massive gap between the rocker arm and valves.

pale sigil
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Are both heads vvl?

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Sounds like one of the engines is a non vvl 253 and the other is vvl

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Or one was labelled as a 253 but is actually a 251

light parrot
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Inb4 someone pulled parts from a 2005

quiet hedge
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Send pics of both cylinder heads and their markings

mellow night
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the cylinder head on the floor is the old cylinder head, the one in the car is the "new" / one from a junk car.

mellow night
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my car is a 2008 Impreza Sport

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To my eye, they're the exact same cylinder head, exact same rocker arm. I've also went ahead and fit both rocker arms on the old head and they both fit fine. However, both rocker arms seems to have a hard time fitting on the junk car's cylinder head, even the one that originally came with it. I remember though, when I saw it in the junk car, they fit perfectly fine before, it didn't have this gap. Maybe I'm just installing the arms wrong? Does the engine have to be in a specific orientation (TDC, BTC, etc) when installing rocker arms?

pale sigil
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There should be a position where neither cylinder is in lift. You also need to make sure the springs on the rockers are disengaged, then adjust valve lash, then engage the springs again

mellow night
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Just wanted to update this, here's the reason why the rocker arms weren't sitting properly.

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Oily cam cap is the damaged/snapped, clean cam cap came with the original cylinder head of my car lol. Bottom right of the oily one, that bar where the rocker arms sit just snapped. Unsure why, maybe that could've been the reason why the junk car was junked. Good thing I still have the original cylinder head lol

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Here's that bar, closer. Not sure how it would've snapped but it did