386665 test wheel

[ggmurray191]

Hello everyone,
Trying to find, rent or borrow a 386665 test wheel so I can set my WOT timing. I’ve got 89 E70TLCEM 70 hp fresh rebuild. I’ve run it only for a minute so at idle just to hear it run and check for leaks. Would it be ok to take to the water and just do the first couple hours of the break in?

 

[faztbullet]

Make one from a old dinked prop

 

[ggmurray191]

Make one from a old dinked prop

FB, really! Never thought of that! Can you give more info on what to do to the old prop.

 

[ggmurray191]

No diy in the search.

 

[faztbullet]

Take an old prop around 17P, cut 1-1/2 " off tips of blades and drill 3/8 hole in trailing edge. i will see if I can find mine as just moved shop to my barn

 

[ggmurray191]

Thanks FB! I’ll copy yours! I really appreciate your help!

 

[ggmurray191]

FB, how did the 225 turn out? I never saw a pics on the build! I bet it was a monster build!

 

[ggmurray191]

Got an old 13-3/4 X 15 will it do the trick? If not I’ll find a 17 on Ebay

 

[ggmurray191]

Well I guess u couldn’t find the test prop!

 

[ggmurray191]

Any other way to make sure the timings right? Starts no problem just did want melt a piston down or screw up the cylinder walls.

 

[flyingscott]

Use the Joe Reeves method

 

[ggmurray191]

Use the Joe Reeves method

I’ve read thru it, have you done first hand?

 

[ggmurray191]

No QuickStart to deal with on my 89 70 hp

 

[flyingscott]

Yes I have. And Joe was a pretty smart guy.

 

[ggmurray191]

Thank you! Yes watched some of Joes videos super smart!

 

[ggmurray191]

Yes I have. And Joe was a pretty smart guy.

FS,
I have a fresh rebuild I have only ran it a minute or so just to make sure it runs and that I have no leaks. I’m curious would I be safe to pull the plugs and use Joes method to verify my WOT timing now or should I go to the water and do the first part of the break in procedure for the new rings and pistons. Then do Joes method. Just concerned about cranking on my new motor!

 

[flyingscott]

Up to you

 

[ggmurray191]

Up to you

 

[ggmurray191]

Will this spark tester do for Joes method?

 

[ggmurray191]

Seems like I read a thread on how he build one with the gap and such.

 

[OzarkMike]

my spark tester is nothing but a piece of 2x4 with a 1 inch hole in the middle and tapped for a piece of threaded rod and ground to a point on the end