Check with Clewitt about the crankfire pulley,hopefully it isn't different,I used the 10 x 710 and no issues for a short time till it started making noise,not slipping just a PITA noise turned out I had worn pulley faces,ordered a new outer and hope that fixes it otherwise I will get my fan hub machined.
Be careful to set the belt tension right as the bearings in these altenators are fairly small and you don't want to strain the magnesium outer housing as I did and the fan blades rubbed.
Getting close Lawrence .

Great progress! Fairly sure my 2.4 engine has or rather had 3 or 4 shims (have to admit I haven't done the last 2 services / alternator had to be replaced in that time frame)

I do clearly remember the 1st time I did the belt, and it's amazing how much of a difference even adding or removing a single shim makes. I had to go out and buy some more the 1st time I did this job and also keep some in a packet tucked into the tool kit

Just run a tape measure around the pulleys. 710 is 710mm is 28". The PET specifies 725 for 76-79 911. That might be your target. But I'd just measure it and round down since the belt sits down in the upper pulley, you're measurement would be the MAX size, not the ideal size.

Or, I look for a 82mm pulley half.....?

The pulley should have 6 shims. Adjustment is just moving the shims in front or between the pulley halves but never removing them completely.

Yes, all shims are present and accounted for.

Sure... but you can head down to your FLAPS and get a belt today.

There is something about pulley sizes, ratios, and rotational speed. But I don't feel like looking all that up.

I believe that a larger pulley turns slower.....?

Which did you change (go larger with)? ... Crank pulley or alternator pulley?

10 x 725 belt fits perfect......

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... then you'll have it up and running this w/e?

Six shims,not for the early motors 2 to 3 as far as I know but this a later motor so that may explain it?

Not sure, looks very low in the top pulley,perhaps a few less shims,the belt should be level with the top of the pulley halves or there abouts,try that.
It needs to sit as your crank pulley or a little under.allowing for initial belt stretch.
When its right you will have a really small deflection,around 10-12mm cause its a short belt,otherwise you may need something slightly longer if it appears too tight.

If it's tensioned correctly, why would you care how low it sits in the upper pulley?

The whole shim-based tensioning scheme pretty much guarantees the belt won't sit like the bottom pulley. If they wanted it to sit at the top every time the shim setup is a bad choice and a std pulley with tensioner would more effectively accomplish that.

And... the higher the belt sits in the fan pulley, the longer the belt is. The belt sitting at the very top means that's the longest belt possible. And that means that if the belt stretches a bit over time, you have no more room for adjustment.

I think the right, or better, answer to 'Where should be belt ride?' is... Anywhere, as long as:
1. The belt is tensioned correctly.
2. The belt sides are fully contacting the pulley walls.

Way I was taught,have edited my reply ok Mark.

The belt deflection is close to 10mm in this set up.

I'm happy with it.

Engine goes in tomorrow.

The belt has room to break in and stretch + the shims can come out.

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By the way, when we had the heads off, we measured the pistons and they are 84mm. That means this engine is really a 2.4. We think the cams will give us milder "S" type performance numbers, along with the porting work we just did.

Oh, and also by the way, I was told the engine was built to a 2.7 spec and I bought it as such................ Oh well.

I think it will be a fun car, nonetheless.

Dude, your almost there!

What the hell ,it will still go really well with that combo,nothing wrong with what you have,you should make 160-180hp easy .

Even 3.2's use 6 shims.

Your halfway there.

Get ready for it.

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And we have a winner!

B I N G O



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Still a few things to order and a lot to hook up and check, double check, & triple check.

Looks great. Like the engine color. Glad you kept going.

Outrageous!!!

Crap yours is going to be done before mine......

Congratulations sir Lawrence! now ur car will be at the Temecula Fun Day!

All right! The first 90% is done!

Now on to the second 90%, and after that you'll only have 90% to go...

--DD

Congratulations! Now get that thing sorted.

Are your carbs setup for a 2.4 or 2.7? Looks like your main jets might need to be changed out.

https://members.rennlist.com/webercarbs/Web...et_Settings.htm

Yes, set up for 2.4 S spec.....!

I remembered that the day the /4 blew up, we did a nice corner balance/stance on the car and I drove it home in a somewhat "spirited" way.

I can't believe how low it is now, it's been a long time since I've seen it with a motor in it (it's been on jack stands).
The stance is pretty solid.

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If it is any consolation I have never seen mine with a motor in it. Bought it that way.
Yours is looking really good with motor in place and your making great progress. Hope to catch up!

That does look bad-ass...

Anyone with Tool Box's that large should have finished 9 mo's ago.

Those are just gardening tools

Looking good 'Goob'

Funny, those are Trudy's "tools." She has all of her art shtuff, colored pencils, paint pens, stencil crap.

Why is it that my "stuff" is my stuff, and her "shit" is her shit?

My tools are over by my workbench.

Oh, OK. I thought I saw the bailing wire, plumber's tape, duct tape, a hammer and a crowbar in there

Just to let those who wondered about the Patrick Motorsports engine mount; we found it very easy to install and align the engine. Probably took us about 45 minutes to bolt the engine/trans lump, all in.

Putting on the aftermarket engine tin actually proved to be more of a challenge!

I spent the day installing stuff. Clutch cable, accelerator cable set up, and speedo cable.
Tightening up all oil lines, check, double check. It's easy to miss something. I am familiarizing myself with this ignition system, Clewett wires need to be shortened and finished on the coil(s) end.

Still lots to do and, a few things to order.

Way to go! Car looks GREAT, and is gunna drive even better.

Tortoise and Hare? Jesus Christ Almighty. I grind out a solution to a problem every half hour on this conversion thing and when it hits the boards it's hand wringing time on your beautiful ride -not riding........... .

As my lovely wife said so many year ago,..... Git a Job Sir. ( Big Laboskie ((SP)) )

Your car needs to sprout legs and preamble.

You are surrounded by guys ready to assist. Time is up. Over.

Sidebar: With friends like me,........... ........ ...?

Hope to see your ride at Temecula..............

Dang Forrest, you didn't post a bunch of your car's pic's his thread! Are you mad at Lawrence?

More instruction reading, hooking up stuff, and wiring going on.....

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Car is looking awesome!!! keep up the good work.

stop pissing around get the bugger going OK .