Engine Rebuild

[africantiger]

Does anyone know after how many hours of normal running and maintenance,
would the engines generally need a rebuild?
Is it better to rebuild the engine or better to put a new engine from Crusader?
The price for a new engine is about the same as a rebuild.
Thanks
Steve

[Eric T.]

Steve,

This is a very good question.

What boat do you have (model and hull number?)

Which engine is in the boat now? Can you post up a photo please?

Where are you located?

Is the boat mostly original or has the boat been modernized?

Was the boat used in sea water?

[africantiger]

2 boats in particular, one a junior and the other a olympic, the junior is rebuilt silicon bronze screw by screw and the only thing missing is the engine, which was not winterized correctly and the block cracked. Its 5 liter engine
The Olympic, 5.7 litre is running great, but has 850 hours on it and believe maybe its time to put in some old energy.
Thanks

[Eric T.]

Blocks are easy to get... best, in my opinion to get the identical block... and make sure that the crankcase ventilation system is functional... often when early blocks are substituted (283, 307, and some 327's) the crankcase ventilation system is not installed correctly or not installed at all.

[africantiger]

I contacted Crusader both in Europe and USA and they can only supply 5,7 litre engine repower kits, the Junior has a 5 Litre engine, any recomendations from who or where to get a similar repower kit as want to use existing manifolds etc.
Thanks

[Eric T.]

Michigan Motorz has the 5L engines in short block form... can do Reverse rotation as well.

http://www.michiganmotorz.com/marine-en ... -1251.html

Make sure you have the correct oil Pickup for the Oil pan you are using.

VERY important to have the Distributor fully remaufactured AND the Carb re-maufactured to a high standard by someone who specializes in the particular parts you are using.

All parts and systems that are transferred from the old motor must be cleaned and checked for proper operation.

Good luck

[africantiger]

Thanks, I will be in touch with them.
Your assistance is much appreciated.