ricardo1
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I'm not sure that's proper break-in (FSM style).
Are the gaskets in right?
Bellows? The engine didn't look like it was leaking like that when I got the sky so maybe a mistake on my part/ worn out part? I got them tight just not crazy tight.Check the orings, make sure they are not hard. Check the gaskets for rips. Also check to make sure the bellows were put back in right. If all that is fine your raves may just be worn out. Also check and make sure they are tightened down correctly.
I agree about the o-ring it either has a tear is not there, or is hard as a rock.
6250 RPM - Or maybe the waterbox valve is stuck?
Throttle butterflies aren't reaching full open?
FSM - Factory Service Manual.
if this engine is new, you shouldn't be at WOT yet, but yes it should reach almost 7K wide open, after proper break-in is followed.
I'd blame over oiling for the first tank, but this is DI, so it should not have any extra oil for break-in.
New plugs? how's the prop look? are the RAVEs opening? you can remove the spring from them to simulate them running open for a quick test.
is the throttle pulling the engine all the way open?
I thought the DI/RFI you had to have the dealer adjust the TPS after an engine swap? Throttle Position Sensor
RAVES, waterbox, plugs, could all be part of the issue, also old fuel.
What's the compression test showing?
checked compression just for the heck of it and got 140-90 wtf?
Maybe your compression gauge hose is leaking at the plug hole or gauge head?
how does it run? 140 and 90 is a problem if the numbers are accurate...
this is a DI correct? which has a special method to checking the compression, because you have to shut off the fuel injectors...?
Yes its a Di and was holding throttle wide open with the wires grounded.
If anything, fuel under compression will tend to cause a highish compression reading I expect, not a low 90psi. A small leak somewhere or poor ring seal are possible root causes. But you measured a normal reading once, so it seems like a possible leak?
Perhaps the cylinder head spark plug hole threads might be slightly damaged and allowing a small leak at the tester hose connection during the compression check?
You might try some liquid soap there to pinpoint a compression leak.
Do the rave lifters hold air pressure or do they leak?
The RAVES are either on or off, controlled by the MPEM sending air pressure from the air pump through the RAVE solenoid to the RAVES. If the plastic adjuster is turned fully in then it might be possible they don't open but the adjustment is not supposed to have a noticeable effect. Try turning the adjusters flush, I doubt there's any difference but it's free to try.
Check color of your spark plugs, if they are black with soot, you may have leaky fuel injectors.
Confirm throttle body butterflies are fully open at WOT.
Wrong impeller will slow engine.
Confirm air pressure is correct.
There isn't much else I can think of.