My SC coupe project. Made by hand…again.

Share progress on your 356 related project or full restoration with others!
Post Reply
Message
Author
User avatar
Trevor Gates
356 Fan
Posts: 1089
Joined: Thu Dec 10, 2009 6:52 pm
Location: San Clemente, CA

Re: My SC coupe project. Made by hand…again.

#136 Post by Trevor Gates »

Awesome Tom, I’m stoked for you!
https://www.instagram.com/trevorcgates/

User avatar
Tom Perazzo
356 Fan
Posts: 269
Joined: Sun Jun 29, 2008 1:28 am
Tag: It's only metal...
Location: Huntington Beach, Ca
Contact:

Re: My SC coupe project. Made by hand…again.

#137 Post by Tom Perazzo »

First restored parts attached to my 356 this week.

There was a haunting issue that needed to be addressed before the front suspension could go back together.

Almost every factory tool was used to check the components of my suspension rebuild.

The most problematic one was non parallel torsion tubes!

Here are the other other things I found:

1) A bent suspension arm
2) Severely worn link and king pin bushings
3) Worn C link carrier
4) Torsion tube/chassis out of alignment
5) Damaged torsion grub screws
6) Cracked backing plate
IMG_20200821_142602.jpg
IMG_20200821_142602.jpg (4.45 MiB) Viewed 5792 times
Most of my updates are on YouTube now, but I check here too from time to time.

This video link below is how I corrected the torsion tube problem with VW256a. Thanks John for your help!
https://youtu.be/KKOrsoStbyY

Cheers,
Tom


Tom Perazzo
1964 SC Coupe (under restoration)
www.ZalexIndustries.com

Andreas Alexander Schoenwandt
356 Fan
Posts: 9
Joined: Sat Jul 04, 2020 12:35 pm

Re: My SC coupe project. Made by hand…again.

#138 Post by Andreas Alexander Schoenwandt »

Hi Tom, been following your youtube channel and I wonder if you would go through the trouble of taking off the entire roof and outside rear end to get at the inner cavities in the rear of that unibody construction (to the left and right of the rear bulkhead for instance) if you had to do it again? I see nice panels on offer but where should one cut to get inside so as best to use readymade panels in case the surprise continues in magnitude of what you discovered in your A pillars ?

User avatar
Tom Perazzo
356 Fan
Posts: 269
Joined: Sun Jun 29, 2008 1:28 am
Tag: It's only metal...
Location: Huntington Beach, Ca
Contact:

Re: My SC coupe project. Made by hand…again.

#139 Post by Tom Perazzo »

Hi, I would not take the roof off unless absolutely necessary. Today we can use boroscopes and fiber optic type cameras to see exactly what is inside.

In my experience rust attacks certain areas and leaves others alone.

Also remember that these cars will live a charmed life and if taken care of correctly, they shouldn't rust again.

I treat hidden cavities with cavity once a year and inspect with a boroscope to make sure all is well.

Good question, and as always you're results may vary, ha ha.


Tom Perazzo
1964 SC Coupe (under restoration)
www.ZalexIndustries.com

User avatar
Tom Perazzo
356 Fan
Posts: 269
Joined: Sun Jun 29, 2008 1:28 am
Tag: It's only metal...
Location: Huntington Beach, Ca
Contact:

Re: My SC coupe project. Made by hand…again.

#140 Post by Tom Perazzo »

While this project below is for my 912 engine, I thought of it as a precursor to my 356 engine.
engine tin.jpg
engine tin.jpg (534.51 KiB) Viewed 5668 times
There are so many small German bits need for these engines.

I opted for traditional "wet" paint, but added a hardener for durability and more chemical resistance. Time will tell how good it is.

One thing that was troublesome for me is the fan torque nut in the 356 workshop manual says 72 ft-lbs.
IMG_20201113_130841.jpg
IMG_20201113_130841.jpg (3.45 MiB) Viewed 5668 times
That seems like too much for this. I checked VW's online forums and they say 43 ft-lbs.

Is this a mistake in the manual pictured above?

Here's the link to the cooling tin install video.
https://youtu.be/s5ZH3CbXZEk


Tom Perazzo
1964 SC Coupe (under restoration)
www.ZalexIndustries.com

Max Handley
356 Fan
Posts: 951
Joined: Wed Apr 02, 2008 11:52 am

Re: My SC coupe project. Made by hand…again.

#141 Post by Max Handley »

Tom I also thought that 72 ft lbs was more than needed. Here’s what I did I mounted the fan with gen.in a vise with the front nut attached. I tightened the rear nut down fairly snug then used my torque wrench to a final torque of 70 ft lbs. ,once removed from the vice youll have to use an impact wrench to loosen the front nut.

Some use an impact wrench to tighten the rear fan nut by holding the fan with a heavy towel on a flat surface, you have to use caution here as you can easily stretch the threads on the rear pulley shaft by overdoing it. If your squeamish with this they make an attachment which mounts on the impact wrench which will calibrate the torque in lbs to the nut being tightened.




O
Last edited by Max Handley on Sat Nov 14, 2020 9:25 pm, edited 1 time in total.
 Contact email Spyderwerks@comcast.net

User avatar
Tom Perazzo
356 Fan
Posts: 269
Joined: Sun Jun 29, 2008 1:28 am
Tag: It's only metal...
Location: Huntington Beach, Ca
Contact:

Re: My SC coupe project. Made by hand…again.

#142 Post by Tom Perazzo »

Thanks Max for the reply. Just a few minutes ago I looked at my little spec book which says 10mkp which is indeed 72 ft-lbs. Probably not a typo.

It felt squishy to me when torqueing, so I stopped at 50 ft-lbs.

I used a big wrench on the pulley hub instead of using the nut there.


Tom Perazzo
1964 SC Coupe (under restoration)
www.ZalexIndustries.com

Max Handley
356 Fan
Posts: 951
Joined: Wed Apr 02, 2008 11:52 am

Re: My SC coupe project. Made by hand…again.

#143 Post by Max Handley »

Tom the last one I did I torqued to 70 ft lbs. the one before that I did what you did and only torqued to 45 ft lbs and it’s held up just fine. We certainly don’t want that fan coming loose , hopefully it won’t, probably should have used some blue lock tight .
 Contact email Spyderwerks@comcast.net

Max Handley
356 Fan
Posts: 951
Joined: Wed Apr 02, 2008 11:52 am

Re: My SC coupe project. Made by hand…again.

#144 Post by Max Handley »

Tom be sure and mount the generator & fan on its housing with the ( 4 ) 10mm bolts installed and spin by hand to ensure no interference between the fan and the shroud. The fan instruction say you can use between 2 and 5 spacers to get the correct space for your particular application. Also sometimes I’ve seen no cardboard spacer on the front fan tin to also help if needed. I really don’t remember when that front cardboard spacer came into play as I don’t remember having them on my earlier engines pre 1960

Anyone know ?
 Contact email Spyderwerks@comcast.net

User avatar
Paul Lima
356 Fan
Posts: 507
Joined: Fri Jan 10, 2014 2:02 pm
Location: Gardnerville, NV

Re: My SC coupe project. Made by hand…again.

#145 Post by Paul Lima »

A few, perhaps helpful, comments. VW used a massive wavy washer and lower torque to hold it all together. Porsche uses massive (72 lb-ft) to that end. I purchased "torque sticks" (https://www.harborfreight.com/search?q=torque%20sticks) to get this torque with an air impact gun. I did many test trials on my car's lug nuts and found that with the air pressure set at minimum for the gun (90 psi) and the 75 lb-ft torque stick I routinely got 70 lb-ft. With the air gun all it takes is a towel over the fan to hold it.

User avatar
Tom Perazzo
356 Fan
Posts: 269
Joined: Sun Jun 29, 2008 1:28 am
Tag: It's only metal...
Location: Huntington Beach, Ca
Contact:

Re: My SC coupe project. Made by hand…again.

#146 Post by Tom Perazzo »

Hey thanks Paul.
Good to know what others have done. I got nervous about the impact gun as there isn't a great way besides a towel to hold the fan assembly.
It's likely the towel affects the calibration of the impact torque sticks as the fan shutters a bit.

A car wheel has enough inertia or the ground to make it solid. Every force has an equal and opposite reaction force, well torque in this case.

Also not sure how the wavy washer changes the pre-load in the shaft???

Don't mean to be critical here, just sharing some more comments out loud, ha ha.


Tom Perazzo
1964 SC Coupe (under restoration)
www.ZalexIndustries.com

Jonathan Bruce Kinberg
356 Fan
Posts: 2
Joined: Wed Jan 20, 2021 7:17 pm

Re: My SC coupe project. Made by hand…again.

#147 Post by Jonathan Bruce Kinberg »

Hello, I'm new to this forum. I have a '64 SC cabriolet, that I'm restoring myself. Does anybody have, or know where I can find plans for the octagonal/hexagonal Rotisserie? I would like to weld one together, and would appreciate not having to suffer the trial and error of proper dimensions and connection points.

thank you

User avatar
Vic Skirmants
Registry Hall of Fame
Posts: 9279
Joined: Tue Oct 27, 2009 5:02 pm
Location: SE Michigan
Contact:

Re: My SC coupe project. Made by hand…again.

#148 Post by Vic Skirmants »

Hi Jonathan, welcome!
I am sure you will receive some answers soon.

User avatar
Greg Bryan
356 Fan
Posts: 3692
Joined: Sat Oct 04, 2008 1:05 pm
Location: San Pedro, CA 90732; Fallen Leaf, CA 96150
Contact:

Re: My SC coupe project. Made by hand…again.

#149 Post by Greg Bryan »

Jonathan - here is the plan for the Emory octagonal rack. I built one years ago and currently have it adapted to a 912 project.
Emory rotisserie.pdf
(521.85 KiB) Downloaded 185 times
This used to be on their website but I don't think it is any more - fortunately I downloaded it long ago.
Good luck!
Greg Bryan

Jonathan Bruce Kinberg
356 Fan
Posts: 2
Joined: Wed Jan 20, 2021 7:17 pm

Re: My SC coupe project. Made by hand…again.

#150 Post by Jonathan Bruce Kinberg »

Thank you Greg. Sorry it took me so long to answer, but I had not looked back at this thread in a while. This is exactly what I was looking for! So much appreciated.

Post Reply