Is coolant out the head bolt hole normal?
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From: Silicon Valley
Is coolant out the head bolt hole normal?
Does anyone know if coolant leaking up through the hole when a head bolt is removed from a AJ16 ior AJ6 is normal?
I decided to replace the valve stem seals, and when I pulled out the first head bolt, coolant came out.
I know the service manual said to drain the coolant, but I thought since I didn’t want to pull the head off that I wouldn’t need to. Of course now I have drained it.
FWIW, I think it is a poor design that puts the head bolts through the Cam Shaft Bearing Caps.
I decided to replace the valve stem seals, and when I pulled out the first head bolt, coolant came out.
I know the service manual said to drain the coolant, but I thought since I didn’t want to pull the head off that I wouldn’t need to. Of course now I have drained it.
FWIW, I think it is a poor design that puts the head bolts through the Cam Shaft Bearing Caps.
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