I have a few weeks off of work and decided to remove my engine to weld or pin and JB weld my coolant pipes.
I am doing the
GT3 dipstick
coils and plugs.
all the vacuum lines
fuel filter

I'm thinking about
a gt2 slave
rear main seal
intake plenum
clutch if needed (The transmission looks like it was recently replaced) Dealer didn't give me any records

I've done:
diverter valves
f and y rubber pipes
check valves
change over valves
venturi

2001 TT with around 73k

I'm looking for suggestions while the engine is out.

What are you folks using instead of 99611065172 and 99611065372 (the 2 rubber hoses that come off the venturi?
I found these: Sidewinder 1/2" 3/8" Molded Fuel Line Rubber Hose Elbow Universal 45 90 180 Curved on Amazon
I didn't take many pictures as I wasn't fun on the gravel driveway. I need to make some space in my shed tomorrow.

 

I'd stay away from the GT2 clutch setup unless you are putting in a big clutch or you are a racing type of driver. Weld all of the coolant lines and maybe new hoses. Pulleys can be replaced also. New water pump is nice.

 

Thanks! I guess I will research the slave conversion more.

 

You'll get used to the heavier action pretty quick, but if you drive in traffic often, it's a bit of a chore.

 

There are a few threads in this section that have a pretty comprehensive list of items to change. I would also do the expansion tank that holds the coolant. They are known to also go bad over time.

Keep us posted on how it goes.

 

Ok, I was debating cleaning my coolant tank vs buying a replacement

 

I cross-referenced most of the orings I will need for the coolant hose service. Came out to pennies on the dollar. $30 vs hundreds.

I had to purchase some extra orings because they have a minimum number you have to buy

I will add part numbers later. The v75 is the one for the CHF11 power steering reservoir.

https://nemigaparts.com/cat_spares/pet/porsche/996t/

theoringstore.com
8 ea.4.5mm X 28mm (NBR) Buna-N 70 Duro Metric O-Ring$6.96
12 ea.2mm X 10mm (NBR) Buna-N 70 Duro Metric O-Ring$1.08
4 ea.3mm X 26mm (NBR) Buna-N 70 Duro Metric O-Ring$1.40
4 ea.3mm X 39.2mm (NBR) Buna-N 70 Duro Metric O-Ring$2.40
2 ea.2.4mm X 33.3mm (NBR) Buna-N 70 Duro Metric O-Ring$1.14
2 ea.2mm X 68mm (NBR) Buna-N 70 Duro Metric O-Ring$1.26
3 ea.2mm X 51mm (NBR) Buna-N 70 Duro Metric O-Ring$1.32
7 ea.2mm X 12.5mm V75 Fluorocarbon FKM O-Rings 75/80 Durometer Black$1.40
15 ea.2mm X 12mm (NBR) Buna-N 70 Duro Metric O-Ring$1.50
7 ea.2.5mm X 18mm (NBR) Buna-N 70 Duro Metric O-Ring$1.05
4 ea.2.5mm X 30mm (NBR) Buna-N 70 Duro Metric O-Ring$1.00

999 707 410 40 o-ring coolant temperature sensor housing+ 3 other coolant pipe housing 4x 39.2x3
999 707 411 40 water pipe housing 8x 28x4.5
999 707 298 40 steering pump housing o-ring 1x 51x2.5 fkm
999 707 409 40 oil cooler o-ring 4x 26x3
999 707 446 40 oil cooler bracket oil line o-ring 1x18x2.5
999 707 468 40 water pump housing o-ring 1x 68x2
999 707 364 41 oil reservoir check valve o-ring 1x

999 701 789 40 oil cooler bracket oil line 7x 12x2
999 701 789 40 oil cooler housing + oil lines to turbo o-ring 8x 12x2mm i have them in oring container
the last 2 may need editing as I don't know if 8 or 15 are needed.

 

On my 997tt (currently back in, not refilled with fluids.. wish me luck) I did a few things not on your list that I am happy I did:
Replaced all o-rings (so many o-rings! I got nitrile o-rings or viton o-rings from local supplier at sizes rather than from porsche)
Replaced all rubber hoses (unless they use o-ring connectors)
Sharkwerk metal elbows
Filler neck gasket
Water pump, thermostat and gaskets
Manifold gaskets
Turbo intake pipes to silicone (what a pain to get connected later!)
turbo to exhaust gaskets
exhaust studs and nuts

Wish I had replaced the throttle body rubber gasket but I forgot to order it. Also wish I had done all the hoses/o-rings in the front while it was fluidless as well. If I hadn't run out of funds then new engine and trans mounts would have been great while at it, guess that's for later.

Hope that gives you some ideas at least.

 

I would consider replacing the intake piping with the free flowing options out there. Not really maintenance item but I read that it is easy to do when the engine is out. sounds like you have most other normal stuff on your list.

 

Thanks guys. I am realizing some of the rubber hoses need replacing as well as an intake boot due to a chf leak.
its coming apart nicely

 

I did fuel injectors too, although what I understand now from Markski I probably shouldn't have or at least didn't need to. Our engines are the same but some parts aren't and I think maybe the 996tt fuel injectors are a weaker part, so might wanna check that. Super easy to do with where you are at now, later would require doing all this again.

 

Just to add, I'd also replace the two rubber intake manifold to plenum boots.

 

thanks everyone. Lots of helpful suggestions!

 

I'd just get those lines welded if you have torn down this far. A fabrication shop charged me about an hour of work for it a few years back. I used the Torque Solutions fittings in place of the old ones and it turned out great. You have to re use the longer curved fitting though. It's nice to have that problem out of the way for good.

 

I was pretty sold on jb welding and pinning them. I have a friend who said he would weld them up for me.

My next question is can I reuse my fitting or should I buy the BBI ones?
I'm assuming the BBI ones are thicker aluminum?

Or the torque solutions...