Josh P
Member
- Joined
- Oct 30, 2013
- Messages
- 72
- Reaction score
- 50
- Points
- 18
- Location
- Phoenix, AZ
- Vehicle Year
- 1991
- Make / Model
- Ford
- Engine Size
- 4.0L
- Transmission
- Manual
5.0 swap is needed
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You are not wrong...5.0 swap is needed
Was hoping so but after retorquing them (no guarantee they're perfect, but way better than they were) the pinging is no better and no worse. 91 octane fuel helped to some extent.I wonder if the detonation has anything to do with loose intake bolts.
That's what my head gasket set instructions said and there is a very specific way to torque both and I followed it to a T but in the end after several heat/cool cycles I had very loose bolts. There is a separate torque procedure for the lower intake by itself if just replacing that gasket - I followed that today - it was something like 36in/lb->72in/lb->132in/lb->180in/lbs. Every single bolt was looser than 36in/lb and the previous procedure had me tighten them all to 15ft/lbs.@Shran ,
I'm pretty sure that the heads must be installed and torqued at the same time as the lower intake manifold.
I was wondering if heavy detonation might have loosened the bolts. Off the top of my head, I don't think that they call for a lot of torque.Was hoping so but after retorquing them (no guarantee they're perfect, but way better than they were) the pinging is no better and no worse. 91 octane fuel helped to some extent.