hypeber

Hello everyone, here is the my 964 story.

I bought a red 964 C2 with 90K miles from UK few month back and it finally arrived in Hong Kong. As long as it has some oil leak, I was told by the owner it is in a good condition to drive. I drove a bit in Hong Kong with a temporary plate and it feels ok but just the shifting is a bit hard to put in gear from 3rd to 4th. Anyway i drove it to the shop to have everything check before car inspection for the local government. The car unfortunately did not pass the inspection because the hk government would not pass any car with oil leak. I had the shop to check again and he said I will have to rebuild the engine if to fix the oil leak. So for me to get to drive this car in hk, I would have to fix it. I know it might cost me more than buy another one and sell back this one to other markets but i really want to rebuild this one.

I am ok with rebuilding it but what parts should i upgrade on the 964 since i have to rebuild it. I read online that I should upgrade to a 3.8 if rebuild. What else should I change beside the 3.8 upgrade? crankshaft? transmission gear? This car wont be going to the track but I will drive around where smooth, empty highways switchback across subtropical forests and misty hilltops.

Please let me know, so I can do it all at once instead of doing it piece by piece in the future.

Thanks

Gt3stig

Go and have a chat with RWB.
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Ralph3.

Reseal and top-end?

Spyerx

the reality is you need to assess where the leaks are coming from. Some can be fixed without a rebuild. Before you do a full rebuild and rip the motor apart, knowing more than some leaks is critical. For example, did they perform a leak down and compression test?

So before you go with "needs a rebuild" find out where it's leaking. It may just need seals replaced.

Now, if the motor has leak down issues, look at the top end first.

How many miles / KM on the car? Do you have service records?

HiWind

a knowledgable Rennlister from HK posts on the GT3 CUP forum - CREX - i would ask him for a reference to the right shop as leak <> rebuild necessarily as SPYerx says. Crex has been very helpful re parts and his experience.

I would add that it is often (in my experience) a bad idea to leap into work on a car you've just bought before you really get to know it .. for one you wont really know if after all that work and all that time not driving you've actually gained anything ... and secondly the better the work is planned and prepared for the better off you'll be.

Lastly, can't you just clean the engine thoroughly from below (see dry ice or soda blast) just before you go in for your Road Licensing?

If your heart/head is set on rebuild, I'll tell you this: I recently bought a 3.6 built with GT3 crank/lighter rods & pistons and its really impressed me - feels every bit as strong as my 3.8 and still runs happily on the stock ECU which is great for a road car

.. best thing you can do though is spend 2-3hrs on each of the big rebuild threads here and start planning. ENJOY! and KEEP US UPDATED!

John McM

Great advice.

When you pull a 964 engine apart, as I have, you realise just how many possible places there are for leaks and how few of them are mission critical.

The starting point is an engine clean then identification as to what exactly is leaking. It may be very localised and a few hours work.

A rebuild is at its most basic about new rings and valve guides. Neither of those are likely making your engine leak oil. Take it slowly and carefully and have the mechanic explain what needs doing, then come back here for a second opinion.

power_up

send you a PM

Peteinjp

I too am preparing to embark on 964 ownership. Here in Japan oil leaks will also fail the national inspection. It is common here to simply clean the motor just before the inspection and attempt to pass. However my understanding is that once you have submitted a car for inspection you must follow up with the same shop in terms of the repair. This is meant to discourage owners from searching for shops that will try to slip cars past the inspection rules.

At any rate I agree with the posts above that regardless of whether you rebuild or not you should determine the exact source of the leakage. "Rebuild" can mean many different things. I strongly concur that you should seek out a Porsche specialist. There is no reason to necessarily build a 3.8 if the engine really only needs to be resealed at a few problems areas.

dlpalumbo

My 90 C4 was leaking oil from cylinder/crankcase gaskets. 964s are also known to leak from thru-bolts that hold crankcase halves together. These cars are known to wear valve guides especially on catalytic converter side as it gets very hot there. Mine were shot.

If there is a way to get past inspection now so you can live with car for a while before spending what will be a lot of cash on car that would be ideal. Maybe rent a trailer and haul it to a track so you can get some seat time, but take it easy as you dont know where other weaknesses are. It turned out my car had a bent valve as well. You never know.

I've had my car 10 years and its been one of best cars I've ever owned.

Oh, and if you do the rebuild, make sure they put rsr seals on rocker shafts or oil leaks will persist. Voice of experience talking.

Good luck,

Dan

Yiu Wai Tong

Just my 2% i think it is nice to have another pair of eyes to confirm that the rebuild is neccessary.and if so its my pleasure to do the rebuild or any repair for u.besides,ur 964 may hold a higher resale value here in hong kong if u leave it as original as is.pm me ur contact if there is anything i can help.cheers
Ray

964TOK

I used to have my car serviced here in HK @ Continental http://www.cmsport.com.hk/en/

I'm pretty sure when I imported my 72E to HK and had to go through the reg process it had a small leak and was not raised as an issue. Continental got the car through the inspection for me.

Can you not clean the engine down. Then clean and fit the engine under tray. Should stay dry enough for the test.

hypeber

Yeah we did clean it before inspection and did not pass.

hypeber

I actually had 3 different people looked at it already

HiWind

so after cleaning and before turning it back on is there oil and where?

hypeber

Top and bottom leaking. He washed and turned on engine and is leaking already.