|
|
|
|
| Author |
|
|
Registered
Join Date: Jul 2003
Location: Valencia Pa.
Posts: 8,864
|
Both feet in now my friend! I am enjoying this thread, keep up the good work ! So , did it blow a head gasket? You mentioned that in my thread . Im curious to see the heads when you tear them down, Ive never had one apart. I am guessing it is the same as an s2, or 968 head, with the center chains, and tensioners, and all that nonsense . Should be pretty straightforward once it is out and on the stand
__________________
No left turn un stoned |
||
11-08-2015, 03:41 PM
|
|
|
Registered
Join Date: Dec 2001
Location: Cambridge, MA
Posts: 44,898
|
It looks that way Fred. #6 had good leakdown but a lot of gurgling. #5 had 90% leakdown. Now all I need is a ton of snow. 3.2 is getting a total detail down to tumbling/polishing the intakes. Will post that on Technical.
     
__________________
Tru6 Restoration & Design |
||
|
11-10-2015, 08:06 AM
|
|
|
Registered
Join Date: Dec 2001
Location: Cambridge, MA
Posts: 44,898
|
It comes apart easily enough. Will probably wait for the weekend to get the heads off. Probably best done fresh. tomorrow I'll do the exhaust.
Cams do not look good.       
__________________
Tru6 Restoration & Design |
||
|
11-18-2015, 05:29 PM
|
|
|
Did you get the memo?
Join Date: Mar 2003
Location: Wichita, KS
Posts: 33,179
|
On the bright side (pun intended) you can clean and re-plate a LOT more fasteners now.
__________________
‘07 Mazda RX8 Past: 911T, 911SC, Carrera, 951s, 955, 996s, 987s, 986s, 997s, BMW 5x, C36, C63, XJR, S8, Maserati Coupe, GT500, etc |
||
|
11-18-2015, 06:31 PM
|
|
|
Registered
Join Date: Dec 2001
Location: Cambridge, MA
Posts: 44,898
|
And Cerakote the intake and exhaust!
__________________
Tru6 Restoration & Design |
||
|
11-18-2015, 06:47 PM
|
|
|
Registered
Join Date: Dec 2001
Location: Cambridge, MA
Posts: 44,898
|
I remain amazed at how simple this motor is, but then I'm used to air cooled I guess. Everything comes apart easily. Very well engineered. Didn't need the bridges or a Hazet 8mm triple square, my trusty old, no idea where I got it, triple square set made of structural cheddar worked perfectly with a 3/8 gun to just loosen the bearing cap bolts.
Tomorrow morning we get to see what's under the bad head side.      
__________________
Tru6 Restoration & Design |
||
|
11-20-2015, 05:50 PM
|
|
|
|
Now in 993 land ...
|
I love the chain connecting the cams - right in the middle. Never seen that before - maybe in a motocycle?
I definitely envy you that you have time to dink with this much hardware all at once! Have fun! G |
||
|
11-20-2015, 09:57 PM
|
|
|
Did you get the memo?
Join Date: Mar 2003
Location: Wichita, KS
Posts: 33,179
|
Quote:
__________________
‘07 Mazda RX8 Past: 911T, 911SC, Carrera, 951s, 955, 996s, 987s, 986s, 997s, BMW 5x, C36, C63, XJR, S8, Maserati Coupe, GT500, etc |
||
|
11-21-2015, 04:21 AM
|
|
|
Double Trouble
Join Date: Nov 2002
Location: North of Pittsburgh
Posts: 11,706
|
I'm sure you will do a fine job Shaun...but man I thought I was crazy for restoring an MGB.....
Funny note: On my garage wall, for Porsche I have winning posters for Sebring and LeMans and stuff like that. For the MG I have a large color blow up of the wiring schematic!! I feel your pain brother,,
__________________
I used to be addicted to the hokey pokey..........but I turned myself around.. 75 914 1.8 2010 Cayenne base Last edited by targa911S; 11-21-2015 at 06:28 AM.. |
||
|
11-21-2015, 06:25 AM
|
|
|
non-whiner
Join Date: Aug 2012
Location: Slightly right of center
Posts: 5,235
|
Great project, Shaun! Thanks for sharing. I always wanted a 928, but not sure. I have the energy of it any more. Keep posting!
__________________
"Too much is just enough." |
||
|
11-21-2015, 06:47 AM
|
|
|
Registered
Join Date: Jul 2003
Location: Valencia Pa.
Posts: 8,864
|
That looks like a newer style Reniz head gasket, you are not the first explorer to be in there .
__________________
No left turn un stoned |
||
|
11-21-2015, 07:13 AM
|
|
|
Registered
Join Date: Dec 2001
Location: Cambridge, MA
Posts: 44,898
|
Taking off the head, the problem became immediately obvious. Victor Reinz's experiment with head gaskets made out of facial/make-up removal cotton pads didn't work out so well.
        
__________________
Tru6 Restoration & Design |
||
|
11-21-2015, 08:04 AM
|
|
|
|
resident samsquamch
Join Date: Oct 2005
Location: Cooterville, Cackalacky
Posts: 6,815
|
It does look surprisingly simple. Also looks like a lot of coolant flows around those cylinders.
__________________
-jeff back in the saddle: '95 993 - just another black C2 *SOLD*: '87 930 GP White - heroin would have been a cheaper addiction... "Ladies and Gentlemen, from Boston Massachusetts, we are Morphine, at your service..." - Mark Sandman (RIP  )
|
||
|
11-21-2015, 08:29 AM
|
|
|
Model Citizen
Join Date: May 2007
Location: The Voodoo Lounge
Posts: 19,454
|
So, Shaun, what course of action do you take? Factory Gaskets? Copper? (you'd have to machine grooves for orings in the head or the block) A quick google search shows that there aren't a whole lot of options....and everything is taxed to 928 specs....
I'm like sand-man thinking that those water jackets seem really large! Like moats! |
||
|
11-21-2015, 09:35 AM
|
|
|
Registered
Join Date: Dec 2001
Location: Cambridge, MA
Posts: 44,898
|
The plot thickens.
   
__________________
Tru6 Restoration & Design |
||
|
11-21-2015, 09:48 AM
|
|
|
Registered
Join Date: Dec 2001
Location: Cambridge, MA
Posts: 44,898
|
Quote:
Given #6, I am honestly not sure. I have a spare 87 motor, unknown quantity, car was totaled. I was not expecting #6 piston to be damaged.
__________________
Tru6 Restoration & Design |
||
|
11-21-2015, 09:55 AM
|
|
|
GAFB
Join Date: Dec 1999
Location: Raleigh, NC, USA
Posts: 7,842
|
Shaun, the piston looks salvageable, but how is the cylinder?
What's going on there - looks like some FOD damage. Thoughts?
__________________
Several BMWs |
||
|
11-21-2015, 09:58 AM
|
|
|
Registered
Join Date: Dec 2001
Location: Cambridge, MA
Posts: 44,898
|
Walls are discolored compared to others but smooth with no scratches or scoring at all.
    
__________________
Tru6 Restoration & Design |
||
|
11-21-2015, 10:32 AM
|
|
|
GAFB
Join Date: Dec 1999
Location: Raleigh, NC, USA
Posts: 7,842
|
Is the corresponding combustion chamber chewed up too?
|
||
|
11-21-2015, 10:35 AM
|
|
|
Registered
Join Date: Dec 2001
Location: Cambridge, MA
Posts: 44,898
|
Combustion chamber
   
__________________
Tru6 Restoration & Design Last edited by Shaun @ Tru6; 11-21-2015 at 11:03 AM.. |
||
|
11-21-2015, 11:01 AM
|
|
