What reserve would be suitable for this Sepia 73.5T?

[porschyard]

Originally Posted by Rawknees'Turbo

It also has an after-maket, or custom, aluminum air-box with integrated back-fire valve - looks nice, and is undoubtedly way better than the plastic thing that Porsche used.

That is one of the old Webb Design stainless airboxes. They were made in central fla. back in the day, i installed a few and they were very well made but had a draw back or two including they would still occasionally pop the welds on a backfire even with the built in pop off valve.

The other problem we ran into was that they did not make them for the very first small port CIS systems so when installing on a 73.5 or normal 74 you had to find the reducing sleeves that you see on that box. The boxes also got very hot in stop and go traffic in south fla. heat.

[73.5TinPA]

Today raised one side at a time & the 4 wheels came off,
I used Purex & water & scrub pad to clean the inside surface,
took pics of the Fuchs inscription (all wheels from 2/73 or 3/73),
I bled the brakes,
checked the pads for wear (around 50-60% left),
put anti-seize on the hubs (a dab on the lugs), torqued to 80 ft/lbs,
put it back together.

Yes, Juan, I'm wanting to keep it.



Tomorrow I crawl under to scrub the transaxle & engine underside.

[porschyard]

[QUOTE=73.5TinPA;10980797][img]http://forums.pelicanpart



put anti-seize on the hubs (a dab on the lugs), torqued to 80 ft/lbs



I doubt you would have a problem at that torque under normal driving conditions but the factory spec is 96 ft. lbs.

Richard

[Mocker]

It's not a good idea to use anti-seize on the lugs...your torque specs will be off, or so I have been told. Hubs and other mating surfaces, yes, lugs, no.

[73.5TinPA]

Thanks for the factory spec, Porschyard.
Hadn't looked that up.
Have decided to replace the brake pads, so will have an opportunity to get that right.

Most mechanic shops torque to 140 ft/lbs which is brutal.
Try to change a flat by the road side & you won't be able to get the lug nuts off.

And, yes, Mocker, that is correct about grease on the lugs- it will change the torque requirement. Many techs agree that it is wrong to lube lugs.
I over-did-it with the anti-seize, but will reduce that to an honest dab.

I examined the XWX's closely.
They have been kept in a cool garage.
They are amazingly durable tires. No cracks, no belt metal showing, they hold the air pressure forever.

A few years ago, on a final drive, when sliding around some fast turns- they broke loose, & one could tell that the rubber compound was hardened.
Checked the date codes- 1982!

[Matt Monson]

Yeah, I wouldn’t drive on those. Those are car show rubber now.

[73.5TinPA]

After 3 hours on my back with a few inches to spare, I decided to call it 'pretty good'.
(Those are/were those nice blue paper towel shop rags.) (They look the same on both sides.)






I really had to psyche myself up for this job.
Drank a lot of strong coffee.
Lesson learned: when you do this type of work, your hands/nitrile gloves get rather dirty. Drinking all that coffee has its drawbacks. (You can figure that one out).

A good bit of the black on the transaxle was black paint. These must have been painted black at the factory?
Also, it's impossible to reach into all those closely spaced gearbox fins. A strong spray of water would clean in there.

[porschyard]

140 FT.LBS. AYFKM If i ever saw someone doing that with an alum. Porsche lug nut I would go ballistic. I say that because i have had to remove countless over tightened 911 lugs over the years and it is NO FUN. I had a customer have new tires put on at sears many years ago and i had to drill 18 of 20 lugs the next time a tire had to come off, took me more than a full days work and lots of cussing. He told me he saw the newbie Tech putting them on with an Impact. He had to take them to small claims court to get them to reimburse but he did finally get his money.

Richard

[73.5TinPA]

Here are a few more.





I like this one for some reason. It's a good viewpoint. Just beautiful imagery!



This pic shows the righthand side heater control valve/vent- it is open.
I sprayed it with a healthy dose of PB Blaster to make sure it doesn't freeze up.
Surprised that the old paint is still adhering.

The left side one also was open (of course), but had some light surface rust- I sprayed it, too. It was tricky getting the camera into position. (tight under there).

A tech adjusted the valves cold, about a thousand miles ago. They should still be in spec. I never drove it hard, am a little anal about that sort of thing.

I found the invoice with a compression check 83,221 miles (Now 95K miles). (When my brother owned it, I purchased in 1990, about 2000 miles later).
For what it's worth, this is what was typed by Prestige Imported Car Service, Ltd, Baltimore, MD 21228, dated 23rd Feb, '84.

1-145;
2-135;
3-140;
4-140;
5-145;
6-140.

[Matt Monson]

Originally Posted by 73.5TinPA

Here are a few more.

That hose and clamp aren’t original. Replace them.

[NYNick]

I've never seen pictures of used shop towels before.
Why does that make me think of a weekend at Rawknees?

[73.5TinPA]

Starting to review some invoices.
You guys are a hoot.

Here's the engine rebuild invoice from 8/29/78.



This service manager must have had a tough time in penmanship in first grade.

Looks like:
3 new pistons
clutch set
3 rings/1 kit;
set rod bearings;
1 intermediate shaft;
6 chain guides;
2 tensioners;
1 sprocket;
3 valves;
3 rockers;
1 oil pump;
I can't make out the rest. Total Labor 1173; total parts 3206; total bill 4632.

[Mixed76]

That was a lot of money in 1978

Sent from my Nokia 7.1 using Tapatalk

[thamlin000]

I agree it looks like a lot of money for 1978 so I just looked it up on an Internet inflation calculator. It’s $18k in today’s money. Or close to the current cost to rebuild a 911 engine.

Here’s another interesting fact; a new 1978 SC was $19k. This rebuild cost was about 25% of the cost of a new SC back then.

[Rawknees'Turbo]

Originally Posted by NYNick

I've never seen pictures of used shop towels before.
Why does that make me think of a weekend at Rawknees?

That's because you are always thinking of me, bisch - mancrush style!!!

[NYNick]

Originally Posted by 73.5TinPA

Starting to review some invoices.
You guys are a hoot.

Here's the engine rebuild invoice from 8/29/78.



This service manager must have had a tough time in penmanship in first grade.

Looks like:
3 new pistons
clutch set
3 rings/1 kit;
set rod bearings;
1 intermediate shaft;
6 chain guides;
2 tensioners;
1 sprocket;
3 valves;
3 rockers;
1 oil pump;
I can't make out the rest. Total Labor 1173; total parts 3206; total bill 4632.

The RS rebuild on my 72T cost about this much in 1988. Either my guy got a great deal or your guy got ripped. I think the latter.

[73.5TinPA]

Original Porsche factory tool set/roll, with addition of jack tool.



Owners Manual, service log, additional books:



Glovebox door open:



"S" instrument cluster.
A/C system is complete, was charged 15K miles ago & working. I never tested it in my ownership- every body says it was marginal, so why bother.:



Original factory installed dash- blemish free:

[73.5TinPA]

Original factory vinyl driver seat. Has a 1" hole on outside side from mechanic 'friend' who pulled the transaxle for rebuild (he knew "nothing").
The section was hanging on, but then it went missing. I believe the piece fell inside the seat- need to retrieve it & glue in place.



Pedal cluster, factory installed with 95K miles wear shown. Carpet is from Porsche, original installation:



Optional wheel arch bright trim installed on all 4 wheel wells.
Plus rocker/sill panel bright trim strip, both sides.






Oil analysis performed on last oil change oil- about 1000 miles ago:
There was some copper (8) noted (although all metals were considered in the 'normal' range) ("Sodium is indicator of cooling system leak"- ah-oh):

[sugarwood]

Why does a 5 year old car need an engine rebuild ?
Were the engines that fragile in 1973 ?

[Alan A]

Originally Posted by sugarwood

Why does a 5 year old car need an engine rebuild ?
Were the engines that fragile in 1973 ?

Not just 73.
996 anyone? IMS?
997 anyone? Cams?

2014 anyone? GT3?

Porsche engines aren’t all magical...