YnotDIY Posted November 22, 2019 Share Posted November 22, 2019 does anyone know which intake bolt goes into the coolant passage on an EA82? I know one of them is leaking coolant into the intake. gonna try and throw some RTV on the bolt and see if that stops the leak. Only thing is.....which one? Quote Link to comment Share on other sites More sharing options...
DaveT Posted November 22, 2019 Share Posted November 22, 2019 They are not supposed to be into the coolant. Even if one [of the 2 near the coolant port] was drilled too deep, it would intersect a head bolt. The outermost one - on each end, those might eventually hit a coolant passage if you were to drill deep enough, but they do not connect in a stock head. The head bolts are not really sealed off from the crank case, but the head bolt and washer make it not really open either. In a stock head, if there is coolant in the space around an intake bolt, it is coming from a failing intake gasket, or crack or warp in the manifold. Quote Link to comment Share on other sites More sharing options...
YnotDIY Posted November 22, 2019 Author Share Posted November 22, 2019 24 minutes ago, DaveT said: They are not supposed to be into the coolant. Even if one [of the 2 near the coolant port] was drilled too deep, it would intersect a head bolt. The outermost one - on each end, those might eventually hit a coolant passage if you were to drill deep enough, but they do not connect in a stock head. The head bolts are not really sealed off from the crank case, but the head bolt and washer make it not really open either. In a stock head, if there is coolant in the space around an intake bolt, it is coming from a failing intake gasket, or crack or warp in the manifold. ah thanks dave. I've struggled with keeping intake gaskets from leaking on this engine. I've gone through 3 sets in the last year alone. They fail in the same place every time, drivers side intake bolt closest to the front of the engine. Totally possible the intake is warped. Quote Link to comment Share on other sites More sharing options...
88SubGL Posted November 23, 2019 Share Posted November 23, 2019 Buying your gaskets directly from Subaru? I have heard of problems with aftermarket intake gaskets. Quote Link to comment Share on other sites More sharing options...
YnotDIY Posted November 23, 2019 Author Share Posted November 23, 2019 2 hours ago, 88SubGL said: Buying your gaskets directly from Subaru? I have heard of problems with aftermarket intake gaskets. yes they are subaru gaskets. that's the only way to go. I'm pretty sure my intake needs machining. 1 Quote Link to comment Share on other sites More sharing options...
DaveT Posted November 23, 2019 Share Posted November 23, 2019 Take off the manifold. Clean the faces. Set it in place, try a feeler gauge to see if you can pick up on how flat the faces are lining up to each other. You might need to use a set of gaskets while doing this, depending on clearances, etc. Maybe lightly installing a couple of the bolts Quote Link to comment Share on other sites More sharing options...
YnotDIY Posted November 23, 2019 Author Share Posted November 23, 2019 9 hours ago, DaveT said: Take off the manifold. Clean the faces. Set it in place, try a feeler gauge to see if you can pick up on how flat the faces are lining up to each other. You might need to use a set of gaskets while doing this, depending on clearances, etc. Maybe lightly installing a couple of the bolts ah! of course. thanks dave! Quote Link to comment Share on other sites More sharing options...
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