Search found 17 matches

by augur
Mon Nov 21, 2016 6:32 pm
Forum: Automotive Power Only
Topic: Final Caddy 500 Tune?
Replies: 3
Views: 1015

Re: Final Caddy 500 Tune?

I appreciate that, Thanks
by augur
Mon Nov 21, 2016 5:33 pm
Forum: Automotive Power Only
Topic: Final Caddy 500 Tune?
Replies: 3
Views: 1015

Final Caddy 500 Tune?

I have a fresh rebuild on my caddy 500 and holly carb. I am looking for someone near Deland that can dial everything in before I hit the water but I don't know any mechanics who have experience specific to airboating. Can anyone recommend someone near me?
by augur
Thu Nov 10, 2016 4:59 am
Forum: Automotive Power Only
Topic: Caddy 500 crank question
Replies: 22
Views: 3561

Re: Caddy 500 crank question

Yes, Orange City. I re-measured the blades and they are 12 inches wide for sure. I sent you my #. Thanks
by augur
Wed Nov 09, 2016 3:22 pm
Forum: Automotive Power Only
Topic: Caddy 500 thrust bearing problem
Replies: 17
Views: 2759

Re: Caddy 500 thrust bearing problem

Oh yea, I forgot to mention there is an extra oil jet drilled into the block that goes thru a small hole drilled into the thrust bearing face.
by augur
Wed Nov 09, 2016 5:47 am
Forum: Automotive Power Only
Topic: Caddy 500 crank question
Replies: 22
Views: 3561

Re: Caddy 500 crank question

Update- I pulled the crank and sent it to Steve's custom Crankshafts. He welded and polished it back up. The motor is re-assembled and running. The end play almost imperceptible with new mains and thrust bearings. I read some post on here that couldn't overstate how important the right lube is, so I...
by augur
Wed Nov 09, 2016 5:12 am
Forum: Automotive Power Only
Topic: Caddy 500 thrust bearing problem
Replies: 17
Views: 2759

Re: Caddy 500 thrust bearing problem

Update- I pulled the crank and sent it to Steve's custom Crankshafts. He welded and polished it back up. The motor is re-assembled and running. The end play almost imperceptible with new mains and thrust bearings. I read some post on here that couldn't overstate how important the right lube is, so I...
by augur
Mon Sep 05, 2016 8:24 am
Forum: Automotive Power Only
Topic: Caddy 500 crank question
Replies: 22
Views: 3561

Re: Caddy 500 crank question

Thanks for your input, I feel positive the pitch was too steep and it killed my thrust bearing. The motor runs great but just wouldn't rev past 2200 rpms with the prop. The boat is a 14ft cottonmouth and cruised 30mph at 1800rpms with 600lbs of passengers. That seemed like a great setup to me. I nee...
by augur
Sat Jul 30, 2016 7:19 am
Forum: Automotive Power Only
Topic: Caddy 500 crank question
Replies: 22
Views: 3561

Re: Caddy 500 crank question

I wanted to share an update. I pulled my crank and got it down to Steve's custom Cranks in Pinellas Park. He re-welded the thrust surface and polished everything back up. $125 out the door. Thank you Steve!!!
by augur
Thu May 12, 2016 5:51 pm
Forum: Aircraft Power Only
Topic: Hulls again aluminum vs fiberglass for my application
Replies: 10
Views: 2225

Re: Hulls again aluminum vs fiberglass for my application

I am new to airboats and still playing around with my first one (14' fiberglass cottonmouth) and I am scared to death of sinking it. I see someone in the string said stay away from deck over, why?
by augur
Fri May 06, 2016 5:59 am
Forum: Automotive Power Only
Topic: Caddy 500 crank question
Replies: 22
Views: 3561

Re: Caddy 500 crank question

Thanks guys, I appreciate the info both warning me not to run the engine and where to get my crank fixed. This is a great site. I couldn't get any of this info off a google search. This has been a very humbling project. Thanks again.
by augur
Wed May 04, 2016 6:26 pm
Forum: Automotive Power Only
Topic: Caddy 500 crank question
Replies: 22
Views: 3561

Re: Caddy 500 crank question

Thank you for the info. I can't post a pic because I already threw in a new thrust bearing and put everything back together. I have 26-30 thousandths end play and the thrust surface of the crank looks like used brake rotor.
by augur
Wed May 04, 2016 5:13 pm
Forum: Automotive Power Only
Topic: Caddy 500 crank question
Replies: 22
Views: 3561

Caddy 500 crank question

Has anyone had any success with having the thrust surface re-welded? I haven't been able to find a shop that will do it yet. I have seen cranks online for anywhere from $700 to $3500. Not quite sure what to do. Any help would be appreciated. Thank you
by augur
Tue Apr 26, 2016 5:36 am
Forum: Automotive Power Only
Topic: Caddy 500 thrust bearing problem
Replies: 17
Views: 2759

Re: Caddy 500 thrust bearing problem

I've thought about starting over with a new crank, but my fear is the same thing will happen again. Dang, I sure wish I would have checked that end play after the rebuild. Thanks for sharing your experience. Anyone interested in trading a bass boat for a really expensive automotive self pace class :)
by augur
Sun Apr 24, 2016 12:27 pm
Forum: Automotive Power Only
Topic: Caddy 500 thrust bearing problem
Replies: 17
Views: 2759

Re: Caddy 500 thrust bearing problem

freehand measurement with a harbor freight caliper looks like I have about .030 end play with the new thrust bearing installed.
by augur
Sun Apr 24, 2016 11:44 am
Forum: Automotive Power Only
Topic: Caddy 500 thrust bearing problem
Replies: 17
Views: 2759

Re: Caddy 500 thrust bearing problem

The crank was machined before I re-assembled the engine and I didn't know enough to specifically check that surface, but Kevin at deland auto parts went so far as to add an oil jet to squirt oil right through the face of the thrust bearing. I can only assume that if the crank was shot he would have ...
by augur
Sun Apr 24, 2016 9:50 am
Forum: Automotive Power Only
Topic: Caddy 500 thrust bearing problem
Replies: 17
Views: 2759

Re: Caddy 500 thrust bearing problem

It was a complete rebuild. The break in oil was rotella 15-40 with a bottle of additive the machine shop recommended. I have changed the oil since with STP 10-40 twice in fairly quick succession before I noticed the end play. I just did another change with the same but haven't run it yet. guess I'll...
by augur
Sun Apr 24, 2016 8:18 am
Forum: Automotive Power Only
Topic: Caddy 500 thrust bearing problem
Replies: 17
Views: 2759

Caddy 500 thrust bearing problem

Ever noticed how a drill bit cuts metal better at slow speed vs high speed? This is my theory of why I wasted my new thrust bearing within a few hours of light running. My prop pitch was limiting my engine rpms to 2200. Too much thrust at low engine rpms? I'm new to airboats and not sure exactly whe...

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