It is currently Wed Nov 14, 2018 9:05 am

All times are UTC - 5 hours [ DST ]


Forum rules


Please click here to view the forum rules



Post new topic Reply to topic  [ 40 posts ]  Go to page Previous  1, 2, 3  Next
Author Message
PostPosted: Sun Nov 04, 2018 9:50 am 
356 Fan
User avatar

Joined: Tue Mar 25, 2008 6:32 pm
Posts: 3286
Location: Harrodsburg, Kentucky
Tag: I wish I knew as much as I think I know.
If you use a torquemeister you do not need a flywheel lock as if you place the wrench in opposition to the turning force applied you cancel out the vectors.

_________________
If I had known I would live this long I would have pushed the envelope a little harder.
Cymru am byth
David Jones #9715


Top
 Profile  
Reply with quote  
PostPosted: Sun Nov 04, 2018 11:14 am 
356 Fan
User avatar

Joined: Sat Oct 25, 2008 6:10 pm
Posts: 15
Location: Santa Rosa, CA
Vic Skirmants wrote:
I would caution AGAINST a flywheel lock that bolts to the case.

Thanks for the suggestion. Never having purchased a flywheel anything before, is this what you're cautioning against?

Image

Stoddard T55-215-001 Flywheel Lock works on 356 911 912 and 914

_________________
1960 356 S90 Sunroof Coupe
2007 Boxster


Last edited by Dennis Vogel on Mon Nov 05, 2018 10:49 am, edited 1 time in total.

Top
 Profile  
Reply with quote  
PostPosted: Sun Nov 04, 2018 12:05 pm 
356 Fan
User avatar

Joined: Fri Mar 14, 2008 9:14 pm
Posts: 1625
Location: FT.WORTH/DALLAS TEXAS
Vic: on the shelf I have an engine case with the bolt area broken off and have wondered how that happened. Now the truth is known. We have used the locking clamp for years without any problems. I can remember as I started 356 work in the early 60's we used a link of chain or sometimes a short box end wrench on the bottom stud. I know we did not have a torque wrench that would measure 500 ft. lbs. so we probably used a breaker bar and a piece of cheater pipe. Things were just crude then.
It is hard for me to realize that someone at "home" can successfully rebuild any engine. It takes a dial bore gauge to check the diameter of the crankshaft holes in the case and to check the size of the big end of the rods. Perhaps your machine shop can rebuild your rods, but there are no specifications in the shop manual for the center to center length of the rods. You still have the situation of clearance between the piston pin, the piston and the small end of the rod. It is a simple matter to check your cam followers to see if they are flat, usually if they are flat the cam is bad. At the factory each part was measured before it was installed and then a person trained to be a mechanic with a lot experience put the engines together. I would live to find some of those people in their forties.
Soon we will be publishing information about front end service. al zim 2018/11/04 800.356.2964

_________________
 


Top
 Profile  
Reply with quote  
PostPosted: Sun Nov 04, 2018 12:17 pm 
356 Fan
User avatar

Joined: Wed Mar 12, 2008 1:00 am
Posts: 8067
Tag: KTF
Al Zim wrote:

It is hard for me to realize that someone at "home" can successfully rebuild any engine. al zim 2018/11/04 800.356.2964

Al-
I think the thousands of successful home engine re-builds will prove you wrong on this one.

_________________
I always need stories for my Barn Find column in the magazine, if you have a good story to share, please let me know.


Top
 Profile  
Reply with quote  
PostPosted: Sun Nov 04, 2018 12:44 pm 
356 Fan
User avatar

Joined: Fri Mar 14, 2008 9:14 pm
Posts: 1625
Location: FT.WORTH/DALLAS TEXAS
Adam: I would appreciate it if you would define successful. Is that and engine assembled according to the shop manual or something that runs. For instance when you install Webber or Delorto carburetors the engine will run but one side of the engine will always be leading the other in throttle openings. When you switch your 356 to 12 volts and only change the starter solenoid how long does it take before the teeth are ripped off the flywheel? Fly cut the head 10.5MM what happens to the head seal? How do you adjust the valve guide for proper fit without a lathe. How much taper is in the valves before you start really burning oil. al zim

_________________
 


Top
 Profile  
Reply with quote  
PostPosted: Sun Nov 04, 2018 12:52 pm 
356 Fan
User avatar

Joined: Fri Mar 14, 2008 9:14 pm
Posts: 1625
Location: FT.WORTH/DALLAS TEXAS
Adam: I would appreciate it if you would define successful. Is that and engine assembled according to the shop manual or something that runs. For instance when you install Webber or Delorto carburetors the engine will run but one side of the engine will always be leading the other in throttle openings. When you switch your 356 to 12 volts and only change the starter solenoid how long does it take before the teeth are ripped off the flywheel? Fly cut the head 10.5MM what happens to the head seal? How do you adjust the valve guide for proper fit without a lathe. How much taper is in the valves before you start really burning oil. My favorite which I have almost never seen accomplished has to do with the setting of the angles of front wheels. al zim

_________________
 


Top
 Profile  
Reply with quote  
PostPosted: Sun Nov 04, 2018 12:59 pm 
356 Fan
User avatar

Joined: Wed Mar 12, 2008 1:00 am
Posts: 8067
Tag: KTF
Al Zim wrote:
Adam: I would appreciate it if you would define successful. Is that and engine assembled according to the shop manual or something that runs. For instance when you install Webber or Delorto carburetors the engine will run but one side of the engine will always be leading the other in throttle openings. When you switch your 356 to 12 volts and only change the starter solenoid how long does it take before the teeth are ripped off the flywheel? Fly cut the head 10.5MM what happens to the head seal? How do you adjust the valve guide for proper fit without a lathe. How much taper is in the valves before you start really burning oil. My favorite which I have almost never seen accomplished has to do with the setting of the angles of front wheels. al zim


Al, most of us just want to enjoy our cars, and if an engine is re-built and running well, there you have it. I like to live my life much like Salvador did, minus the moustache.

Have no fear of perfection - you'll never reach it. - Salvador Dali


Attachments:
Dali-Portrait.jpg
Dali-Portrait.jpg [ 12.38 KiB | Viewed 197 times ]

_________________
I always need stories for my Barn Find column in the magazine, if you have a good story to share, please let me know.
Top
 Profile  
Reply with quote  
PostPosted: Sun Nov 04, 2018 2:20 pm 
356 Fan
User avatar

Joined: Tue Mar 25, 2008 6:32 pm
Posts: 3286
Location: Harrodsburg, Kentucky
Tag: I wish I knew as much as I think I know.
Al, I have to disagree with you. I raced Formula Vee for many years and built my own engines and was more successful with my own engines than many people with professionally built engines. I did not grind my own cranks but did porting, balancing and tuning on my own dyno including building my own carbs. I have also built many 356 engines and I am by no means a professional but I maintain that anyone with the aptitude and an ability to read and understand engineering concepts can build a good reliable 356 engine because I am living proof that it is possible. Attached picture is not photo shopped and the engine would run to 7K rpm though I did not do it often. It is still running after 10 years and burning virtually no oil between changes. That particular engine had heads built by Vic Skirmants and I would defer to a professional for 356 head valve guides as they are not as simple as VW guides but valve grinding is not a particularly difficult task.
Assembling an engine is just attention to detail and a degree of patience in the actual assembly. There are many people who cannot and should not attempt to build a 356 engine but there are many who can, will and should be encouraged to do so. There is a great deal of satisfaction to be had for building your own engine and driving a car with motive power that was assembled with ones own hands.


Attachments:
2nd gear.jpg
2nd gear.jpg [ 83.78 KiB | Viewed 183 times ]

_________________
If I had known I would live this long I would have pushed the envelope a little harder.
Cymru am byth
David Jones #9715
Top
 Profile  
Reply with quote  
PostPosted: Sun Nov 04, 2018 2:57 pm 
356 Fan

Joined: Thu Apr 01, 2010 4:35 pm
Posts: 901
I've been building my aircooled engines for years. I built the engines in my B coupes and have logged thousands of miles. I've had failures, like a goand but they failed, but everyone's build is dependent upon the quality of the parts they use..and quality these days is inconsistent.
A good machinist is key, they do the real hard work that Al mentions.
When you drive a car that you built the engine for it takes the whole experience up another notch.

_________________


Top
 Profile  
Reply with quote  
PostPosted: Sun Nov 04, 2018 5:30 pm 
356 Fan
User avatar

Joined: Fri Mar 14, 2008 9:14 pm
Posts: 1625
Location: FT.WORTH/DALLAS TEXAS
I was always intrigued by the craftsmanship involved with the 356. It seemed to me that other makes of vehicles lacked engineering competence in design when they were assembled. As my experiences with the 356 Porsche's expanded the cars became more interesting probably because of their complexity. I have had good fortune to be able to turn my interests into a profession. More so now because of my experiences I can ask questions! My pursuit of when the trailing arms were made of a lighter welded tubing instead of a heavier tubing has caused me to look through all the Porsche and VW literature from the 1950's. No answer is available. Recently we finished measuring the torsion tubes to see if they were correct. During the assembly of the front end the question of how, at the factory during assembly, did they determine where to set the stop for the steering. I am sure measuring tool existed but it was only used in the assembly line. How fortunate I was to enjoy doing this for the last 57 years. al zim

_________________
 


Top
 Profile  
Reply with quote  
PostPosted: Tue Nov 06, 2018 12:09 am 
356 Fan
User avatar

Joined: Wed Mar 26, 2008 11:45 am
Posts: 6032
Location: San Francisco
Ignoring for now whether an owner should do a rebop (and there are questions):
1) You got the flywheel story.
2) First time? 10mm hex key for head nuts, 16mm socket for case acorn nuts.
3) The rear pulley needs care; make or buy some sort of rotational lock. Tim Berardelli makes a wonderful piece:
Attachment:
TBR wrench 001.JPG
TBR wrench 001.JPG [ 538.21 KiB | Viewed 124 times ]

After removal of the bolt, still be careful; I like the little 'wonderbars' to get it off:
https://www.amazon.com/Titan-Tools-1700 ... ar+pry+bar
4) Removing the oil system valve caps can be a pain; you can fake it with this (upper concoction a captured circlip):
Attachment:
Pres_Rel_Tools.JPG
Pres_Rel_Tools.JPG [ 459.29 KiB | Viewed 124 times ]

5) Ditto getting the lube system pistons out, get something like the lower tool just above.
6) Splitting the cases, if they're in good shape, can be 'fun'; use a piece of hardwood between the hammer and the case, work on the edge of the sump plate 'hole' below, two extended 'tabs' above, back and forth.

_________________
Ron LaDow
www.precisionmatters.biz


Top
 Profile  
Reply with quote  
PostPosted: Tue Nov 06, 2018 2:57 am 
356 Fan
User avatar

Joined: Tue Jul 08, 2008 11:50 am
Posts: 690
Location: Whidbey Island WA.
Ron is correct, just the special tool collection is considerable But it's your car, you can fix your own car. Go get a shop manual, read the book, follow the book, and ask the members when you have a question.


Attachments:
image.jpeg
image.jpeg [ 1.71 MiB | Viewed 115 times ]

_________________
John Brooks

62 Roadster
66 912
getting pushed around in porsches since 1965
Top
 Profile  
Reply with quote  
PostPosted: Tue Nov 06, 2018 8:45 am 
356 Registry Member
User avatar

Joined: Tue Oct 27, 2009 5:02 pm
Posts: 6542
Location: SE Michigan
Ron; 15mm socket for the case acorn nuts. Have you been wondering why you sometimes rounded the nut?
And something I've noticed years ago; when splitting a virgin case, it makes a scary cracking noise when it first lets go.

_________________


Top
 Profile  
Reply with quote  
PostPosted: Tue Nov 06, 2018 10:02 am 
356 Fan
User avatar

Joined: Fri Oct 23, 2009 7:24 pm
Posts: 6985
Location: 30MI WEST OF PHILA
Vic Skirmants wrote:
I've noticed years ago; when splitting a virgin case, it makes a scary cracking noise when it first lets go.
Next time remove ALL of the acorn nuts! :P

_________________
'57 Speedster - very real
'59 Sunroof - mostly real
'60 Devin D Race Car-in process - fake chassis - real body
'63 GS 2133 coupe - very real
'67 S Original Owner - ultra real


Top
 Profile  
Reply with quote  
PostPosted: Tue Nov 06, 2018 10:20 am 
356 Fan
User avatar

Joined: Fri Mar 14, 2008 9:14 pm
Posts: 1625
Location: FT.WORTH/DALLAS TEXAS
John: I noticed that you had no measuring instruments. Neither did you have a file that would be necessary to set the piston ring gap. al zim

_________________
 


Top
 Profile  
Reply with quote  
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 40 posts ]  Go to page Previous  1, 2, 3  Next

All times are UTC - 5 hours [ DST ]


Who is online

Users browsing this forum: Buster Venable, C J Murray, Eric Gibeaut, Google [Bot], Kevin Wills, Steven Murray, Vic Skirmants


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Jump to:  
Powered by phpBB® Forum Software © phpBB Group