blueboxster393

Dear listers,

I am in the process of ordering parts for a complete (split case) 964 engine rebuild. My mechanic suggested using all genuine Porsche parts if possible but it's over my limited budget.
Have you had any good/bad experience with OEM parts? Any particular parts should avoid OEM? The OEM manufacturers I am interested in are those found at the Pelicanparts.com.


Thanks in advance for your inputs

Barnie

cjoenck

You may already know this but Porsche did / does not make all of their own parts and sources parts from companies that can make theses parts better and cheaper than Porsche - or any car manufacturer- could. OEM means just that - Original Equipment Manufacturer and they can be and will be in original Porsche engines.
There is a ton of knowledge on this forum from folks who have been down this path and they will share what works and what doesn't but OEM vs Genuine Porsche may not get you the right answer. Good luck.

Vincent C.

I agree with your mechanic....and when going as far as "split case" rebuild, its hard to be on a budget and have to cut corners.....this is where i would spend a little extra money, buy the best parts and not have to redo something that would require "splitting" the case again....you don't save money doing it twice....good luck...

964Andrew

Some Porsche branded parts (bearings for example) are checked and tested at Porsche facility. OEM supplier "Glyco" bearings are $600 less. Both come fro the same manufactures but from different factories (If I remember correctly). I heard of negative experiences where the OEM bearings had larger variations in size end to end when measured. Porsche bearings were all identical.

Thanks!
Andrew

dutchcrunch

I can confirm that the bearing that are sourced directly from Porsche have signs of being measured in-house . The rod bearings for sure. I think the rod bearing are the ones with issues. The rod bearings are cheap. It’s the mains that are pricey.

deadendd9009

Anything internal to the engine (that need to split the case for replacement) should be Porsche. Anything that can be accessed from outside the engine you could get away with it I guess?

dutchcrunch

Intermediate shaft bearing I would replace with Porsche , cheap. Those wear kinda fast.The nose bearing seal I would source from a a quality Viton set like from Steve Weiner. What kind of mileage you have.. those main bearings can last for a long time. Maybe you just need a reseal, and not a rebuild.

Goughary

Suggestion. Talk to someone who builds aircooled Porsche engines for a living. We have a few good options here, Steve Weiner for example...they always give good advice and there are options for Porsche parts, oem manufacturers, and aftermarket parts- you may find a mixture of all in the end.

Suggestion 2: raise your budget. And hope to come in under. But some things are worth getting right, and this is one of them. Cuz if you get it wrong, you'll end up costing yourself more in the end.

But first key is to speak not with a bunch of us lunatics loitering on a forum, and speak to someone who does this day in and day out. That person will guide you properly.

Who is doing the engine build? Your mechanic? You? Or are you going to mail the motor to a designer/builder?

revolution993

Yea i am in the same situation splitting the case and doing top and bottom was wondering if i should save and go aftermarket on some parts...

revolution993

Who’s doing your rebuild?

peterpullin

only thing you have to worry about is the rod bearing. glyco aftermarket is trash. not worth a buy.
porsche bearings are $$$$ (especially if you need undersize) but worth any cent.

most of all other parts you can source anywhere you find them.

if you need used parts avoid evilbay and similar. all parts there come out of perfect running engines with
low miles and are in perfect condition - almost new. the ones you recieve will tell another story.

for machine work take the best. not the best price.

if you are out of budget then wait a wile and put money aside for your project. and move on once there is
enough money. this saves you money in the end!

good luck

revolution993

Thanks for the your input gonna try get most oem parts as possible.

blueboxster393

He is an ex-Porsche dealer mechanic with over 20 years of working experience.
BTW, he is trying really hard to convinced me getting all genuine Porsche parts.

blueboxster393

[Update]

The followings are genuine Porsche current parts numbers for 1990 C2 5 spd. that I have ordered...more coming

96410090200#1 gasket set
930-100-901-04 case gasket
930 107 040 01 Set oil tube
964 103 925 00 964-103-925-00 Set of piston rings standard
964-104-321-50 Valve guide,1st oversize Exhaust, 1st Replacement (9 X 13.08 mm)
964-104-321-52 Valve guide,1st oversize Intake, 1st Replacement (9 X 13.08 mm)
999-113-426-41 Radial sealing ring
931-102-111-02 Deep-groove ball bearing
930-103-147-15 Connecting-rod bearing
964-105-029-00 Timing Chain Rail (Straight)left
964-105-030-00 Timing Chain Rail (Straight)right
964-105-043-02 Timing Chain Rail (Curved)
993-105-529-00 Timing chain closed
999-095-048-00 Dowel sleeve
964-207-130-04 Connecting piece
964-207-327-00 Breather hose
964-207-217-00 Oil hose
993-101-170-54 Stud
993-104-382-53 cyl.head nuts
rennlineRS carbon duct from Pelicans
964-101-901-00 Set of crankshaft bearings
valve covers (from Rennline)
964-105-079-00 Timing Chain Tensioner-left
964-105-080-00 Timing Chain Tensioner-right
993-606-013-00 Temperature sensor replaced 930-606-013-02
901-105-546-04 Camshaft Gear, Sprocket
993-101-137-01 Thrust bearing Intermediate shaft bearing set
901 101 135 00(996-101-435-70) Intermediate Bearing (996-101-435-70)
993-207-226-00 Gasket
964-207-047-08 Thermostat 93-
964-207-251-03 oil hose, only for 964 207 047 05/07/08
964-207-241-07 Oil hoseThermostat964 207 047 05/07/08
999-192-338-50 fan and alternator (manual cars)
999-192-352-50 A/C compressor V-Belt 12.5 X 1080

dutchcrunch

Those valve guide, you might want to use something better. Leave that choice to the people that rebuild the heads.