This thread is getting long. Summary - blew the head gasket
, replaced and now I have white smoke and power is way down. Only hits 1100 rpm
manifold pressure check can back good.
I ordered an adaptor for the compression
test, so I will do it on Saturday. I will post the part number if it works.
I thought my head gasket
got a good seal but now that the exhaust manifold is good it must be the head gasket causing the white smoke? I will do the compression
test but if it is low couldn't it be either the rings or head gasket? I have a new head gasket (2nd one (btw french creek $20 cheaper than marine part express)), but I do not want to waste the 2nd gasket. In other words, if the head gasket leaks
can the compression test tell me anything or can I get a full compression with a leaking head gasket?
I realize this could be fuel
, but that system was rebuilt last year. If the compression is good I guess back to fuel trouble shooting.
Anyone know how restricted a exhaust system needs to be to cause a decrease in power? I checked my lift muffler
and soot/grease was taking up 20% of the entrance to the muffler
. I will clean it out, but I doubt this caused enough back pressure to effect the performance.
Condition of the block & head surface. Had the head surfaced but checked it after torquing and the was a slight contour which was caused by a contour on the block. The block should be decked, but I did not check originally. I may try to deck
the block with a board and sandpaper, the machine shop suggested.
Another thing we realized was our torque wrench was not reading correctly. I realized this when trying h the boat's method of torquing the head. Then I switched to a non click type torque wrench.
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