Search results

Impeller kit isnt going to solve the gear oil leak he needs to determine which seal (s) are leaking first

Yes but so could plugged carb, bad accelerator pump so test first . start with filters see whats in them …

Others will disagree but I am a big fan of 4 blades, on my last two boats improved holeshot stern lift and lowered planning speed. I dont have a big enough boat or go far enough to comment of fuel efficency at crusie etc.

by block off plate do you mean the restricor gaskets between the manifold and elbow or a stainless plate between them?

If the carb has a choke it is a mercarb. If it has no choke it is a TKS. Both share a common lineage from the rochester 2 jet. If it is a mercarb they have two different style accelerator pumps, you have to get the right one or order a kit that has both ( Mikes carb parts sells them) on a 3.0...

Carb rebuild is likely needed make sure choke is fully opening when it is warm verify the new fuel filter u installed are still clean (that there was no residual crud in fuel system) measure fuel Pressure while running at speed with a 19” prop you should be able to get up to 4600 rpms and...

I think i depends on the engine . My old 3.0 not long , newer boat has 5.0 takes a bit longer havent timed it but long enough it always makes me worry a bit. I would think there are several gallons in the block , BBC that you have would likely take more to fill the block

Hopefully these will be legible

They can get damaged during and over heat and fail. Look athe the rubber boots connecting the exhaust elbow and pipes they usually get baked and the plastic components and water tube that connect to the impeller. All thes plastic items are exposed to the exhaust and will melt if water flow into...

If you can find merc service bulletin 89-9 it covers ddis . Yeah no need for base timing mode, just check for 8 btdc with a timing light. advance is Supposed to be 26 degrees at 2600 rpm for 34 degress total i had one on my 91 searay never had an issue in 20 years with it. Timing never moved...

You need to take the drive off split it and pressure test it. Could be from water pump base seal, shift shaft or upper driveshaft seal

Black max will work fine for a all-around prop. Michigan vortex is similar Quality. Depending on how you want to use it -load of people and gear watersports or cruising you may want to change pitch or blade configuration. Best bet is see how a replacement black max works and go from there.

Inspect the exhaust manifold and elbow for restrictions is this boat used in salt water

There is a knob or dial on the back with 4 cyl, 6, cyl, and 8 cyl settings and idle of 1000 would be very fast

Have your manifolds and elbows been inspected or replaced? If you are in salt and havent replaced your manifolds pop the elbows off and look in cooling passages

Would check your tach as 6 k plus likely inaccurate

It shows a 23 pitch on it, but the hand markings and stamp are indicative that someone had it reworked either to change pitch or add cup. that and the whale tail tell me the PO was trying to solve some performance issue. as bondo stated figure out what your wot rpm is now and we can go from...

When you say you put your finger over plug on back of head where is it ? Is there a core plug on back of head that leaks ?

I suspect you are right that it is not fully going into gear maybe shift mechanism adjustment? Would be worried that the cone clutches are not cleanly engaging possible grinding as they slip. You using the VP lube had read something on another forum folks using merc HP gear lube in VP drives...

My cousins live in Austin been out on lake travis several times with them. I think in austin area there is a couple good size man made lakes. Water levels can vary based of rainfall