964Luftballoon

Thank you!

chsu74

Moving along slowly.
Timing chain ramps in.
Fan painted with new bearing.
New fuel lines.

cobalt

Are they factory fuel lines? I was considering replacing mine while i have the engine out although mine look and feel like new after all these years. I am having all the hardware every nut and bolt to the fuel rails re-plated in yellow cad and it appears some of the new lines aren't plated.

chsu74

Yes factory fuel lines. Was only going to do the ones that hardened and specifically the long one from fuel tank to the motor but decided to do them all when the motor is out since leak down and compression numbers were good.

cobalt

I'm at the same point with mine. I dropped it last week and have done all the primary seals even though they were replaced 15 years ago. They are fine but it is cheap to do while I'm in there. Leak down was surprisingly good at 4-6% but valve lash was all over the place from .001" to .0095" I won't say who did the work but seems it wasn't done properly last time I had it done. Now all are set to roughly .0045" to .0055" never easy getting them perfect. I will have it done this week once Pino gets me the rear tins back for painting and hardware back from plating. Although the sunroof delete will take a little more time. He will be cutting the roof off next week.

I have to find out if cad plating effects rubber. If not I might send out my pulley and new fuel lines to be plated as well.

chsu74

^I believe motors that have been driven tend to seal better. First owner drove my 964 daily into Manhattan in 90 and 91 racking up 40 of the 50K miles. Then his widow put 10K on it over the next 20 years. My motor sounds great!

Took my 3TT out first time last weekend.. Roads were great and them turbos love the cold dense air..

chsu74

Spent time at the shop today pulling my turbo's gearbox as I lost my clutch on Sunday. Looked at the exhaust valves in my 964 motor.

Turbo's throwout bearing and tab broke. Looked to be binding from poor install. Flywheel looked terrible. Got 15K miles out of that clutch.

cobalt

This is the issue with the early ringless engines. Your guy didn't pick up on this earlier. You need a top end at a min. The goo is a result of the ringless engine design.

I would also have the flywheel refurbished before installing it back inthe turbo. How many miles on the pressure plate? Clutch disc doesn't look all that bad how does it measure?

chsu74

I went back and forth on the 964 motor and made the decision. I am not a "fix it if it aint broken" guy. I refuse to be in the camp of "rebuild all early 964 ringless motors." These cars were unloved and beat up for 20-25 years before Singer made them to be gods(which I dislike from all the publicity.) History have shown these cars to be very reliable. No one ran out and rebuilt all ringless motors until bad leak down and compression numbers presented itself. More often than not, shops often practiced instilling this fear mongering into uneducated owners when air cooled motors do not require rebuilding. Plenty examples of that in the 993 forum.

Furthermore, this leak came from elsewhere. It is wet; not dry and carboned combustion leak from between heads and cylinder so no broken head stud and blow by. All air cooled motors leak including this ringless motor. This car sat in a garage for 20 years without being driven. Input maybe 800 miles before the original FW $hit the bed. No oil leak would be a surprise.

My turbo is only 15K miles on a top end and the driver side leaks oil from infrequent use. I am getting all new lwt fw and clutch assembly on the turbo. Something really went wrong on the TO bearing.

chsu74

More updates. Have been lazy.

Planetary gear welded. Not gonna get awards on the welding job but its done.

chsu74

H&Rs, new fuel line from tank to rear of car and engine pad.

chsu74

Found front diff leaking so new seals all around.

chsu74

New 993 coils and motor with gearbox ready to go back into the car.

chsu74

Also new shifter cups and motor hopefully will run tomorrow.

cobalt

Congrats I hope it all goes to plan. If I can only get one of my cars finished. Although I asked for some overly complicated projects. Maybe I will be out driving something other than the 981's this fall. 🤞