'73S Engine Rebuild

Time to rebuild the 2.4S motor in my '73S. What am I looking at in terms of cost for a solid rebuild? Possibly blueprinting the motor as well. Is it worth the extra money to blueprint the rebuild?

Thanks
Steve

Well, it depends...

Motormeister in California do cheaper rebuilds with somewhat mixed results judging from people have written here.

Paul Weir in Seattle do expensive rebuilds that they claim are among the best in world.

The price difference between these two companies can be anything up to 5K!

Blueprinting is not recommended for a 911 engine, because you're likely to waste your time and money. Porsche use high quality materials and have high standards of assembly. This means almost all the critical components are within narrow tolerances - the engine is blueprinted (or almost as good as) when new...

- roGER

Steve,

On blue printing depending on what the car is to be used for, it can make a difference even on the quality of Porsche. If one does not believe, take 12 NEW rod bolts and look at them under a Jewelers eye, you will see flaws, or take 10 NEW timing chains and check each link and you will find some that are sticking. Also on most 911's the factory balanced the motors with in 7 grams, while a Turbo was with in 3 grams and then when we blue print and balance we bring it to 1 gram.
But Porsche is still VERY good with their quality, but yes blue printing will not hurt.

Have you ever thought about rebuilding your motor "YOURSELF"??

It can be a very good learning experience and it is not as hard as most think. Taken a Porsche motor apart and putting it back together is not an art at all, now there are some mechanics who will 100% disagree but that is because of $$$$$. What is an art is KNOWING what can be rebuilt and what cannot, knowing the correct specs and tolerances.

This is a Master's rebuild kit which includes all parts and all machining, all this leaves you is labor? So either YOU can do the labor or even another mechanic can do the labor. As Roger put it, yes we are cheaper, but in "Labor," see the time manual shows it takes 60 hours, well at $50.00 per hour that's $3000.00, WOW! We do it for a flat $1000.00, which is around 20 hours, but we are the ONLY Porsche motor rebuilder that ONLY rebuilds Porsche motors and trans, we do not do service ect.

This is a Master's Rebuild kit

Parts included

1-Set main bearings std/std
* German Glyco
1-Rod bearings std
* German Glyco
2-Intermidate shaft bearings
* German Glyco
2-Timming chains ( 1-peice )
* German Iwis
1-Set Turbo chain rails
* German Swag
12-Bronze phos. Valve guides
* Longer lasting
* Better lubrication
* Harder material
12-Teflon valve stem seals
* Longer lasting
1-Complete set of rings
* For Mahle or Kolben Shimdt
* Comes with special break in tips
12-Rod bolts
* German
* Never re-use, stretch bolts
12-Rod nuts
* German
* Never re-use
12-Piston pin clips
* Factory Porsche
* Never re-use
1-Main seal front
* Reinz, German
1-Main seal rear
* Reinz
4-oil pump seals
* Reinz
1-#8 O'ring
* Reinz
8-Oil return tube seals
* Green Viton
1-Oil pump lock tabs set
* Factory Porsche
* Never re-use
3-Oil cooler seals
* Reinz
2-Cam pins
* Factory Porsche
2-Cam shaft key ways
* Factory Porsche
2-Camshaft Pins
* Factory Porsche
6-Head copper shims
* Different thickness
24-Case O'rings
* Reinz
2- Valve cover gaskets upper
* Reinz
2- Valve cover gaskets lower
* Reinz
2-cam end play gasket
* Reinz
2-cam plate O'rings
* Reinz
* 1-oil thermostat O'ring
* Reinz
2-cam housing gaskets
* Reinz
1-set of crush washers 6mm & 8mm
* Wurth
1-set of lock nuts 6mm & 8mm
* Wurth
6-exhaust manifold gaskets
* Reinz
6-intake gaskets
* Reinz
1-intermidate shaft gasket
* Reinz
6-cam line seals
* Reinz
2-cam housing to case gaskets
* Reinz
2-cam shaft cover plate gaskets
* Reinz
1-oil breather gasket
* Reinz
1-dist. seal
* Reinz
misc gaskets, O'rings & seals included
all Reinz made in Germany!


Now all parts listed above are a MUST when rebuilding your own motor or if some else is, use this as your template of what will be needed.

Machine work included

6-Porsche rods rebuilt
* Resized,
* bores polished
* Balanced
1-Porsche crank rebuilt
* Magnufluxed
* Micropolished
* Balanced
6-Porsche heads rebuilt
* Bead blasted
* Valve spring height adjusted
* Complete valve job
1-Porsche oil pump rebuilt
* Ready for installation
6-Porsche pistons & cylinders prepped for installation,
* Polished piston pins
* Polished piston bores
* Piston ring grooves cleaned
* Cylinders prepped for rings with
1-Porsche case prepped
* Saddles prepped
* Case cleaned
* Matting surfaces checked for warped
2-Porsche upper valve covers
* Machined surfaces
* Checked for warped
2-Porsche lower valve covers
* Machined surfaces
* Checked for warped
2-Porsche chain housing covers
* Machined surfaces
2-Porsche camshafts
* Cleaned
* Polished
12-Porsche rockers
* Radius cut
* Bores polished
12-Porsche rocker shafts
* Cleaned
* Polished
1-Porsche oil cooler
* Tested

The above machine work WILL be needed to for rebuilding your own motor or again if someone else is building it.

Now very simple rule if someone is having their motor rebuilt, take this list and its price (prices are on our web site) and compare it to another mechanics build sheet, then subtract the price and you will see the difference in labor and parts also.

Also, when choosing a machine shop, use ONLY the most state of the art that is up to date on the newest technology, not a 60 year old crankshaft machine that cut cranks in the 1940s, but machines that are specialized in today's racing applications, yes you 911 is a race car motor compared to other auto's, twin over head cams, twin carbs, dry sump system ect.

Doing your own motor can be great fun and not hard with the right help.


Good luck Roy at http://www.motormeister.com