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Mike Tyson still in vegas? Could prolly use a few bux
Ok the SE loader is on the way. What size drill bit do I need to through bolt the loader in for theIf you are not going to tap the intake then a 5/16 is what you need. I you are going to tap the intake then your tap will tell you what size to drill. My chart says it would be an F drill.
5/16-18x1-1/2 bolts?
Four boats away is a long walk to say hello
I would pull those valves out first and hook a hose to the water line leading to the engine from the jet first, cap or "vice-grip" the lines going to the headers or snails (Whichever you have) and see if it'll flow. Don't turn it on all the way, probably 1/4 to 1/3 at most.
Ray
Thats what i was thinking but nothing comes out even with water in the blockmaybe the're plugged up? What are my options to get them functional again?
Sanger maybe?
The popping is due to a lean AFR. As the RPM increases, the AFR fattens up. Basically because there is little/much less vacuum at a higher RPM than idle. This will "suck harder" on the potentially leaky gasket/broken manifold...
Did I mention you should inspect the manifold for cracks?.
I guess it could also be a poorly fitting carb base gasket or an open vacuum port....
After thinking about this all day....You have an intake leak. Spray some ether starting fluid in the breather of a valve cover while idling...
Better yet, an unlit propane torch in the breather...Betting it goes away.
not to get in this conversation late but have you thought about a lean burn at idle? that would cause popping and go away off idle.
Worlds stupidest question........But have to ask.
Are you sure the firing order is...well....in order? :-
It can't load up and be lean.
I know thats what has me stumped
Run
It under the circumstances where it runs like like crap for a bit, the kill it without moving the throttle. Now pull the plugs.
Make timing/fuel changes accordingly.
The plugs will tell the story of the final condition under which they've been run. If you're fat at idle and lean at top, making a pass and idling
Back to the ramp, or even keeping it running till you come off plane will
not show you what you're trying to
see. Be damn sure the boat shuts down safely before killing it at WOT
got it, and yes the boat shuts down very solid and safe at WOT lol
how did you break in the cam, does it do it on the trailer, has it always done it, how new is the motor? does it do it while on the plane, has the carb and dizzy been on another motor and if so did the other motor do this
It only pops at idle?
yes
Any idea where the timing is?
if i remember correctly 12 initial and 32 total, but could be mistaken
If I didn't know any better I would say the lifters are pumping up and holding the valves open... :-
Thats what I tought too so I readjusted the valves(has 1.7 BBC roller rocker arms) and no change, when I adjusted them, I set them at half turn past zero lash. Too tight??
I hate that permatex #2 brown crap. I can't think of an application any more where it would be useful.
Use Ultra Black or Ultra grey, put a bead across the front and back of the block, then put a VERY light coat on the manifold and head around the water passages. I generally throw a glop or 3 somewhere on the head (away from the ports) to stick the gaskets too just because I've already got the tube in my hand and it helps keep the gaskets in place during assembly. Drop the manifold straight on, start all the bolts, then tighten evenly starting at the middle and working your way side to side and towards the ends of the block. Wipe the excess RTV off the ends if you feel like it.
Ray?X2.
