HIGHWAYMAN: Bringing the Devore 928 back from the dead
12-01-2016, 05:12 PM
#167
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Thread Starter
Good point Jim, I think this was bought in the early 1990s, which probably made it 2-5 years old at the time of installation.
Rob, it is a G28.55 2K 1990 box.
I think I am going to reseal it and call it a day!!! Looks too nice to send off. If it blows up, it can come out at that point....
Rob, it is a G28.55 2K 1990 box.
I think I am going to reseal it and call it a day!!! Looks too nice to send off. If it blows up, it can come out at that point....
12-01-2016, 05:31 PM
#168
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Nice! Yes, at this point, close 'er up and run it.
12-01-2016, 05:51 PM
#169
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Now's the time sell that G28 for premium $$$ then put those funds torward a C5/C6 Z06 6 spd. Plenty of used units on eBay, etc., for approx. $ 1500-2000 including tq tube and shifter. IIRC Guy: https://rennlist.com/forums/928-foru...-spd-save.html
has a Corvette salvage yard and gets wrecked Vette's in often.02 T
has a Corvette salvage yard and gets wrecked Vette's in often.02 T
12-01-2016, 05:57 PM
#170
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Now's the time sell that G28 for premium $$$ then put those funds torward a C5/C6 Z06 6 spd. Plenty of used units on eBay, etc., for approx. $ 1500-2000 including tq tube and shifter. IIRC Guy: https://rennlist.com/forums/928-foru...-spd-save.html
has a Corvette salvage yard and gets wrecked Vette's in often.02 T
has a Corvette salvage yard and gets wrecked Vette's in often.02 T
12-01-2016, 06:02 PM
#171
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Thread Starter
Yup. I have had this conversation many times with Carl Fausett who sells the Z06 6 speed kit. I am not opposed to Chevy stuff fundamentally. My 2011 Camaro makes over 800whp on the stock clutch and trans (6 speed) and has been utterly reliable with 20,000 miles of hard driving including autocross.
However, I am of the opinion that only PORSCHE parts belong on a Porsche. Call it snobbery, but over on 914World there are tons of threads about Subaru and SBC conversions. I don't believe in that, which is why I have a Porsche motor in my 914-6.
It's really an ideology thing, and as a Chevy owner, I don't want Chevy parts on my Porsche. Don't much care if others have them.....
Also, there is the legality thing and the series Carl runs in (NASA GTS) allows them but its not very popular in SoCal. I will stay PCA/POC with Porsche parts.
12-01-2016, 06:06 PM
#172
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Thread Starter
Here is a shot of the Camaro getting worked (800whp). I gotta say whatever they make their transmissions and rear ends out of is totally bulletproof, but the parts don't belong in my 928.
12-02-2016, 01:21 PM
#173
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Thread Starter
Gear oil recommendation
I'm going to open up the thread to a gear oil recommendation. What do you guys recommend for this application? I use Swepco 201 on the other cars. What do you think?
LSD box, by the way.
No religious style oil holy wars allowed, I know this is nigh on a religious topic!
LSD box, by the way.
No religious style oil holy wars allowed, I know this is nigh on a religious topic!
12-02-2016, 01:44 PM
#174
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Mobil 1 75W90. Does the car have a transmission cooler?
12-02-2016, 04:38 PM
#176
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Thread Starter
Cleanliness is close to godliness
Spent the past 4 hours and a spray can full of royal purple cleaning this trans. I hate filth, especially on engines and gearboxes. Can't spot an oil leak if the thing is covered in oil.
Now that it's clean, I'm going to take the torque tube off and reseal the box. There's some corrosion on the stub axles so I will remove those as well and see what the back sides look like and replate if necessary.
The rest looks pretty good, but I evicted the colony of spiders that was living in the trans webbing on the left side.....
Now that it's clean, I'm going to take the torque tube off and reseal the box. There's some corrosion on the stub axles so I will remove those as well and see what the back sides look like and replate if necessary.
The rest looks pretty good, but I evicted the colony of spiders that was living in the trans webbing on the left side.....
12-02-2016, 06:09 PM
#178
Developer
Sometimes you can save time by taking the parts to the local do-it-yourself car wash with a can of your favorite degreaser. Soak 'em down, then blast 'em!
Then back at the shop you can do the toothbrush-level final work. We just got in 6 engine cross-members to modify and that's what we did with them.
Then back at the shop you can do the toothbrush-level final work. We just got in 6 engine cross-members to modify and that's what we did with them.
12-02-2016, 10:21 PM
#179
Banned
Thread Starter
Sometimes you can save time by taking the parts to the local do-it-yourself car wash with a can of your favorite degreaser. Soak 'em down, then blast 'em!
Then back at the shop you can do the toothbrush-level final work. We just got in 6 engine cross-members to modify and that's what we did with them.
Then back at the shop you can do the toothbrush-level final work. We just got in 6 engine cross-members to modify and that's what we did with them.
LOL, not in Southern California my friend! There isn't a car wash like that within 20 miles of me and making grease would be really frowned upon....
12-02-2016, 10:27 PM
#180
Banned
Thread Starter
So the leak appeared to be down by the rear drain plug, and whenever I have a situation where there is a flat, thin sealing surface that doesn't seal, I don't automatically blame it on the gasket.
In this case, the gasket that holds this rear cover on is wafer thin, and I always hate to spooge RTV on there to fill gaps.
So I check it out with my machinist straight edge, and it's warped a bit. Hard to tell in the pics, but there is a good amount of light coming through the gap between the straight edge and the rear cover.
So I'll have to mill it flat. I'm using an end mill just to take a couple thou off and flatten it nice. Had the part been shaped differently so I could secure it better, I would have used a flycutter but an end mill will do just fine.
Tomorrow I'll mill it.
In this case, the gasket that holds this rear cover on is wafer thin, and I always hate to spooge RTV on there to fill gaps.
So I check it out with my machinist straight edge, and it's warped a bit. Hard to tell in the pics, but there is a good amount of light coming through the gap between the straight edge and the rear cover.
So I'll have to mill it flat. I'm using an end mill just to take a couple thou off and flatten it nice. Had the part been shaped differently so I could secure it better, I would have used a flycutter but an end mill will do just fine.
Tomorrow I'll mill it.