MV 2272, S/C Ecotec 2.4L, Scott 752

[garth44]

Mate that heat exchanger looks great. Those reducers are the way to go. Be easy to silfos/braize. Well done keep the posts coming

[steelo]

I've never seen one of those exchangers made in the "flesh" before but I'd say. "Nice job"
Can't wait to see the boat finished. Good luck with your build

[Matthewf/Norbert/TuiDog]

Are the elbows you used 3/4"?
If 1/2" they will likey block up

You could use 3/4" hose tails then just loop some hose to join,  that way you don't have tight bend to trap sand stones and it's serviceable

[mohawk]

 I wish i had thought of using reducers .. it looks trick , nice job 

[AKLiving]

Are the elbows you used 3/4"?
If 1/2" they will likey block up

You could use 3/4" hose tails then just loop some hose to join,  that way you don't have tight bend to trap sand stones and it's serviceable

They are 3/4". The angle of the photo may make them look smaller. I considered using flexible hose to connect the two and it would be easy to remove the elbows should I decide to change it. I'll connect a tee valve for clean water flushing after each trip.

[mohawk]

I wouldnt.... they give very little if any trouble... t valve is more likely too be turned of or on and forgotten....pull the hose at the sand trap and stuff a hose in there if you ever want too flush anything 

[Paul]

Checking the various valves are open/closed is(/should be,) part of your 'pre-flight' you do before you leave the trailer....

I have a few valves in the coolant lines for very good reasons.  E.g. valves where the jet unit takeoffs come inside the boat (- these are essentially 'skin fittings' to help avoid sinkings).  Another valve isolating the hose-flushing quick-connect fitting.  I reckon having to remove hose clamps/hoses to flush stuff out is daft, when you can just use the correct fitting/connectors?

[mohawk]

My car has no valves or taps and never seems too mind , but landcruisers arent like range rovers i guess... ive also seen your boat paul , id call it a classic case of OCD but then im a simple person that doesnt like too complicate stuff  and i prefer too leave un needed junk at home

[Paul]

My car has no valves or taps and never seems too mind , but landcruisers arent like range rovers

My car also has no taps, you must be getting confused! 

ive also seen your boat paul , id call it a classic case of OCD but then im a simple person that doesnt like too complicate stuff  and i prefer too leave un needed junk at home

When I got my boat it was a total POS, that barely ran.  It was continuously letting me down, and often the only reason I got back to the boat ramp was due to other friends helping me out.

I vowed to replace anything that caused problems and it ended up the way it is, as a really reliable boat.  If you're sea/estuary boating, you need a whole different setup, to a boat that you can 'beach' in the shallows at basically any time to work on stuff - you just need super-reliable and to have backup systems.

[mohawk]

Im not knocking yr boat paul ( rovers another story ) .... my filosacantspellit is too delete stuff rather than add or replace     or make one item do as many jobs as possible too save weight.

[AKLiving]

I have seen the super fine silt from these rivers sit and settle out and become like concrete. So, I'll continue to obsessively rinse after every trip. To me turning valves to flush then turning them back when done isn't any harder than remembering to reconnect a hose I pulled off for the same purpose. Adding a quick way to get a job done just makes sense to me. When I play in the lake I don't worry about flushing as much but I'm on the river more.

I do have a routine pre-launch checklist but will admit I forgot a drain plug once.

[steelo]

You could use some 12 volt electrically powered irrigation solenoids operated from the dash. Some sort of push and hold setup. That way never left open.

[AKLiving]

With the warmer weather I've been able to get some work done on the motor.
Parts came in from Jet Boat Base in NZ. The parts and shipping were $$ ouch. But, the quality is great and they are the ONLY solution for the ecotec LE5 engine. The money was well worth it.




Wiring harness from Steve Humphries. Thanks so much Steve, the harness is a piece of art.




Making my own dual pass endplate.




Waterproof relay pack for the hydraulic reverse. Used a Pelican case to house it. I think it was the 1020 but could have been 1040 micro case.




HP Tuner that doesn't look intimidating until you see what it can do and how much you could mess up your engine. I'm still trying to get help with a base tune to start from.




And........










Almost there. Just a few minor things left to connect. I can't wait to hear this thing roar for the first time having no muffler. Thankfully my neighbors aren't too close.

[Paul]

I've gone through and fixed all the image links, so they'll display properly.

[swifty]

Nice work on the photos Paul.
  I love these motors,they are Pricey in nz as we cant get used motors locally.They can produce 300hp without stressing them to much and they have a slight super charger whine which sounds good.