3.0 SC High Performance Rebuid

[snbush67]

I know the feeling, your happy that you found out you did something wrong but pissed that you wasted so much time, sometimes I look in the mirror and laugh. It is great to read that you are moving ahead.

Make sure you check your compression to ensure the valves are seating, I hate to think that you could have bent a valve but it is possible, I know this from experience.

Shane

[Emery G.]

what degree wheel setup did you use? was there a specific adaptor?

[Henry Schmidt]

If you're looking for a degree wheel, this product might work.

[snbush67]

Henry, do you sell those pulleys or have a source? And do you have different sizes available? Lindy was asking about a single pulley set up.

Shane

[Henry Schmidt]

Originally Posted by snbush67

Henry, do you sell those pulleys or have a source? And do you have different sizes available? Lindy was asking about a single pulley set up.

Shane

We make the pulley from 6061 hard anodized aluminum in two sizes. 105mm Power pulley and 117mm standard pulley.
These are designed to run your fan at the optimum speed for ducted fan efficiency.
We also make a 7075 hard anodized aluminum fan center and pulley to match with our pulley's. The later fan centers make it hard to match engine speed to fan efficiency.

[jpkelly3]

"When I finally figured this out, I sat on my stool in my shop and laughed out loud at myself for quite some time. Bone head comes to mind!"

If I might add my 2cents. It takes a secure individual to laugh at oneself while alone in a garage where the dog/cat can hear you and MAYBE the wife/significant other/offspring. But when you display it for the Pelican world to see/hear, that takes a chunk of gonads. You quickly becoming my hero. I hope to attempt your journey soon and am damn glad to have this thread as a guide. Thanks!

[lindy 911]

Without the likes of Aaron and Henry, my project would be a total disaster if left to my own means. I understand most things mechanical and am for the most part (other than a short stint at the Honda motorcycle school back in the 70's) self taught. That in itself can be a recipe for failure and I have seen plenty of that with other projects. The key is to stay with it and never give up. I sound like a football coach.

I had a 30' go-fast boat 10 years ago during my first mid-life crisis and I built blown 496 GMs for it. 90 mph for about ten minutes and "BOOM". I had problems getting the fuel and timing sorted. The weird thing was that the motor breaking didn't bother me; actually I looked forward to it. It is amazing how much you learn through trial and error.

The biggest difference between the boat and the 911 is that I could replace both motors in the boat for the cost of the one build for the 911. I'm trying to be smarter about it and when dumb-ass things like not reading the dial indicator correctly come up I just have to remind myself why I'm doing this in the first place; because I absolutely love it!

Lindy

[lindy 911]

EmeryG,

I'll take a few pictures of my degree wheel set-up and post them this weekend.

Lindy

[Henry Schmidt]

Originally Posted by lindy 911

.......edit........... when dumb-ass things like not reading the dial indicator correctly come up I just have to remind myself why I'm doing this in the first place; because I absolutely love it!

Lindy

I can relate to everything you say, only with regards to a different subject:
I've been married 3 times and now dating a 24 year old and when I do dumb-ass stuff "I just have to remind myself why I'm doing this in the first place;
because I absolutely love it! "

[lindy 911]

Henry,

Now you're going to get me in trouble. My wife (15 years) thinks we're talking cars here. Now when I go out of town and she snoops through my posts shes going to run into this picture! And even though I didn't post it, take it, or enjoy the spoils of it she will blame it on ME!

You are a piece of work my friend!

Lindy

[Henry Schmidt]

Originally Posted by lindy 911

Henry,

Now you're going to get me in trouble. My wife (15 years) thinks we're talking cars here. Now when I go out of town and she snoops through my posts shes going to run into this picture! And even though I didn't post it, take it, or enjoy the spoils of it she will blame it on ME!

You are a piece of work my friend!

Lindy

Blame me, obfuscate, exaggerate and then blame Bush. It works for ZERO. I meant "the anointed ONE."

[Carrerax]

Henry, can you please ask her for an opinion on your head studs?
Sorry, couldnt resist

[MBAtarga]

Originally Posted by Henry Schmidt

I can relate to everything you say, only with regards to a different subject:
I've been married 3 times and now dating a 24 year old and when I do dumb-ass stuff "I just have to remind myself why I'm doing this in the first place;
because I absolutely love it! "

Henry, If that's the gal, my high respect for you has just jumped exponentially!

[Henry Schmidt]

As I've posted so many times before "If it doesn't spin, what's the point?"

Just to respond to an earlier post about "head studs", I will avoid the obvious pun and just say "she thinks I'm a stud".

[snbush67]

Great Henry now Lindy can only post when wifey isnt around.

talking about pulleys and then....

[rgdtoo]

I wasn't sure just exactly what it was, but I just knew there was something ... ya... something else I knew I liked about Henry.

yep a man after my own heart

[rgdtoo]

Ok re-focus now.....

So this might be a dumb-ass question but that's all right because it's still just a question.

Back to pulleys.

Has anybody tried cutting the two pulley, pulley in half making it a one pulley, pulley?
I am wondering if this could be done then balanced at the machine shop. $150 plus for a pulley seems like money I can spend elsewhere.

[Henry Schmidt]

Originally Posted by rgdtoo

Ok re-focus now.....

So this might be a dumb-ass question but that's all right because it's still just a question.

Back to pulleys.

Has anybody tried cutting the two pulley, pulley in half making it a one pulley, pulley?
I am wondering if this could be done then balanced at the machine shop. $150 plus for a pulley seems like money I can spend elsewhere.

In the past we cut pulleys down but the time and energy it took to modifying a pulley was less cost effective and was certainly not a very aesthetically pleasing solution.
The aluminum pulley offers two benefit cutting a pulley does not.
1 degree increments and lighter weight. At higher RPMs, steel pulleys can easily loosen and distort the dowel pin hole in both crank and pulley.
Modifying the cast iron pulley also brings a question of structural integrity into play.

[lindy 911]

OK, It's been a while. I washed my digital camera with my favorite sweat shirt and have not been able to take any pictures of the progress. Today the beast lives. Fired it up at 4:35 PM CST this afternoon and it lit right off. I have an oil leak on the left bank that looks to be a rocker shaft but there is a lot of oil coming out. I pulled the valve cover and made sure it had a good seal and tried again but the same thing; oil after about a minute of run time that looks like it's coming from the #1 spark plug area.

I'll look into it in the morning but I did run the motor for about 20 minutes at high idle for the break in thing. I am here to tell you this motor has some snap. It revs instantly and very willingly. It's like a light switch; can't wait to drive it.

Anyway, my wife is going to get a new digital camera this weekend and I'll take some shots and post them of the installed motor.

Lindy

[snbush67]

Glad you got it going, I got mine going as well. I ended up torquing my rocker shafts tighter than spec.

I am sure you will get the leak sorted, it could also be the can seal but probably the rocker shaft like you suspect.

Good luck,

Shane