70 S, RHD, Signal Orange, UK->Australia->UK
Moderator: Bootsy
-
- DDK above all
- Posts: 165
- Joined: Mon Apr 07, 2008 5:57 pm
- Location: Finland
Re: 70 S, RHD, Signal Orange, UK->Australia->UK
I tested mine (made similar tool), and when pressurised, put them in water. I tested three coolers I have bought over the years ("no engine failure" coolers). Three coolers, 2 leaked a lot and 1 a bit.
So ordered new one from Porsche and called it a day. Same luck was with early alu-case thermostats, only 2 though.
So ordered new one from Porsche and called it a day. Same luck was with early alu-case thermostats, only 2 though.
Ville
*************
1967 911 resto-project
*************
1967 911 resto-project
- inaglasshouse
- DDK 1st, 2nd and 3rd for me!
- Posts: 2427
- Joined: Fri Mar 28, 2014 9:35 pm
- Location: Surrey, UK
Re: 70 S, RHD, Signal Orange, UK->Australia->UK
Thanks all.
Ville - I know what you mean. I am the proud owner of several fuel pumps for MFI, which are a bit hit-and-miss for leakage.
Ville - I know what you mean. I am the proud owner of several fuel pumps for MFI, which are a bit hit-and-miss for leakage.
- inaglasshouse
- DDK 1st, 2nd and 3rd for me!
- Posts: 2427
- Joined: Fri Mar 28, 2014 9:35 pm
- Location: Surrey, UK
Re: 70 S, RHD, Signal Orange, UK->Australia->UK
So having established that the cooler itself was probably not the culprit, I disappeared down the rabbit hole of internet wisdom about the cooler-engine seals.
Long story short, there are various types:
...and many folks believe that not all types seal properly...
http://forums.pelicanparts.com/porsche- ... -damn.html
So I got all excited thinking this might be my problem.
I sent this pic to Barry....
... and proposed that the pattern to the left of the large hole suggests that one of the high pressure seals (at the top, out of shot) has leaked, oil has ended up in the recessed area of the cooler, and made its way out via that blackened channel. Not necessarily during my ownership.
Long story short, there are various types:
...and many folks believe that not all types seal properly...
http://forums.pelicanparts.com/porsche- ... -damn.html
So I got all excited thinking this might be my problem.
I sent this pic to Barry....
... and proposed that the pattern to the left of the large hole suggests that one of the high pressure seals (at the top, out of shot) has leaked, oil has ended up in the recessed area of the cooler, and made its way out via that blackened channel. Not necessarily during my ownership.
-
- Nurse, I think I need some assistance
- Posts: 19016
- Joined: Mon Mar 10, 2008 6:26 pm
- Location: West Midlands
Re: 70 S, RHD, Signal Orange, UK->Australia->UK
I've home rebuilt 4 911 engines, a 2.4 and a 3.2 x 3.
I used the seals that came with the gasket kit from type911, so I presume that it is simply an aftermarket kit, nothing demon or super special.
Never had a leak ever.
The kits are year/engine type specific so I obviously ordered the appropriate kit.
They sell many seals separately, maybe just buy some, check the faces in the block/cooler they seal to and assemble the parts together, or get the same from OPC.
iirc I assembled mine dry, my last rebuild was 6 years ago.
I used the seals that came with the gasket kit from type911, so I presume that it is simply an aftermarket kit, nothing demon or super special.
Never had a leak ever.
The kits are year/engine type specific so I obviously ordered the appropriate kit.
They sell many seals separately, maybe just buy some, check the faces in the block/cooler they seal to and assemble the parts together, or get the same from OPC.
iirc I assembled mine dry, my last rebuild was 6 years ago.
73T 911 Coupe, road/hillclimber 3.2L
Lola t 492 / 3.2 hillclimb racer
Boxster 987 Gen II 2.9
Lola t 492 / 3.2 hillclimb racer
Boxster 987 Gen II 2.9
- inaglasshouse
- DDK 1st, 2nd and 3rd for me!
- Posts: 2427
- Joined: Fri Mar 28, 2014 9:35 pm
- Location: Surrey, UK
Re: 70 S, RHD, Signal Orange, UK->Australia->UK
Thanks Graham. Barry was similarly the brains of the party. He pointed out that my leak happened even when turning over on the starter to get a bit of oil pressure before the first run. So at very low oil pressure, maybe 10psi. He wasn't buying my failed seal idea, and when I switched on my brain I had to agree.911hillclimber wrote:I've home rebuilt 4 911 engines, a 2.4 and a 3.2 x 3.
I used the seals that came with the gasket kit from type911, so I presume that it is simply an aftermarket kit, nothing demon or super special.
Never had a leak ever.
So I ordered a new set of seals from my OPC, on the basis that I might as well replace them and the Porsche ones were the most likely to work.
For the record, Porsche sent the green type. Many thanks to Paul at OPC Guildford for delivering them FoC (my household is in isolation at the moment...)
A quick go in the ultrasonic cleaner, and then the cooler went back on the engine.
Oil leak almost certainly not found and fixed at this stage, but at least some prime suspects had been eliminated from the enquiry.
- inaglasshouse
- DDK 1st, 2nd and 3rd for me!
- Posts: 2427
- Joined: Fri Mar 28, 2014 9:35 pm
- Location: Surrey, UK
Re: 70 S, RHD, Signal Orange, UK->Australia->UK
So it was back to looking for leaks.
Toward the "front" (fan end) of the engine, things were nice and dry. Nothing to see here, move on:
We did wonder whether the cam / rocker area might be the issue. Perhaps leaking from the back end of the RH bank down into the cooler area. But there was not much to report:
Closer inspection suggested that the leak was from somewhere higher up at the back of the engine, with oil then dripping down the case and exiting near the cooler....
Toward the "front" (fan end) of the engine, things were nice and dry. Nothing to see here, move on:
We did wonder whether the cam / rocker area might be the issue. Perhaps leaking from the back end of the RH bank down into the cooler area. But there was not much to report:
Closer inspection suggested that the leak was from somewhere higher up at the back of the engine, with oil then dripping down the case and exiting near the cooler....
-
- Nurse, I think I need some assistance
- Posts: 19016
- Joined: Mon Mar 10, 2008 6:26 pm
- Location: West Midlands
Re: 70 S, RHD, Signal Orange, UK->Australia->UK
Been there!
Check the small cap used for the engine breather hose and the odd oil switch and also the oil feed pipe to the injection pump off the block
It was the latter I had trouble with (hose brittle where swaged to the banjo union iirc, was 20 years ago...simple copper washer issue.
Also the rear crank seal, but that one is glaringly obvious!
Check the small cap used for the engine breather hose and the odd oil switch and also the oil feed pipe to the injection pump off the block
It was the latter I had trouble with (hose brittle where swaged to the banjo union iirc, was 20 years ago...simple copper washer issue.
Also the rear crank seal, but that one is glaringly obvious!
73T 911 Coupe, road/hillclimber 3.2L
Lola t 492 / 3.2 hillclimb racer
Boxster 987 Gen II 2.9
Lola t 492 / 3.2 hillclimb racer
Boxster 987 Gen II 2.9
-
- DDK 1st, 2nd and 3rd for me!
- Posts: 2067
- Joined: Wed Jun 23, 2004 9:47 pm
- Location: Nottinghamshire
Re: 70 S, RHD, Signal Orange, UK->Australia->UK
I have been down the same rabbit hole too! (And always used the green seals).
Have you looked at the oil pressure switch? I know it is obvious and visible, but they can have a habit of leaking and dribbling down the case under the fan shroud and appearing to exit by the oil cooler...
Just a thought
Have you looked at the oil pressure switch? I know it is obvious and visible, but they can have a habit of leaking and dribbling down the case under the fan shroud and appearing to exit by the oil cooler...
Just a thought
93 964 C2
99 Boxster 2.5 > 2.7 hill climber
71 914/6 3.0 - gone
'You see Paul, hill climbing is like making love to a beautiful woman. You get your motor running, check your fluids, hang on tight and WHOA..30 seconds later it's all over!' Swiss Tony
99 Boxster 2.5 > 2.7 hill climber
71 914/6 3.0 - gone
'You see Paul, hill climbing is like making love to a beautiful woman. You get your motor running, check your fluids, hang on tight and WHOA..30 seconds later it's all over!' Swiss Tony
- inaglasshouse
- DDK 1st, 2nd and 3rd for me!
- Posts: 2427
- Joined: Fri Mar 28, 2014 9:35 pm
- Location: Surrey, UK
Re: 70 S, RHD, Signal Orange, UK->Australia->UK
Bit of a long shot, but I have put an ad in the "wanted" section for one of the throttle body cranks (mine went AWOL at Fenn Lane....):
If you have one, or have info about anyone manufacturing them, I'd be most grateful. Thanks!
If you have one, or have info about anyone manufacturing them, I'd be most grateful. Thanks!
-
- Nurse, I think I need some assistance
- Posts: 16922
- Joined: Wed Nov 12, 2003 10:48 pm
- Location: Worcs/W Mids border
Re: 70 S, RHD, Signal Orange, UK->Australia->UK
.
Richard - if you don't have any luck closer to home, it would be worth contacting Matt Blast at Eurometrix & Mark Jung at mfiwerks.com in the US
.
Richard - if you don't have any luck closer to home, it would be worth contacting Matt Blast at Eurometrix & Mark Jung at mfiwerks.com in the US
.
Andy
“Adding power makes you faster on the straights;
- subtracting weight makes you faster everywhere”
“Adding power makes you faster on the straights;
- subtracting weight makes you faster everywhere”
- inaglasshouse
- DDK 1st, 2nd and 3rd for me!
- Posts: 2427
- Joined: Fri Mar 28, 2014 9:35 pm
- Location: Surrey, UK
Re: 70 S, RHD, Signal Orange, UK->Australia->UK
Thanks Andy, good idea.Lightweight_911 wrote:.
Richard - if you don't have any luck closer to home, it would be worth contacting Matt Blast at Eurometrix & Mark Jung at mfiwerks.com in the US
.
Hats off to both Matt and Mark, who replied to my emails very promptly and helpfully. Now sorted (by Mark).
We inch closer to a finished car...
Cheers, Richard.
- Darren65
- Nurse, I think I need some assistance
- Posts: 7873
- Joined: Mon Dec 13, 2010 10:55 pm
- Location: North Wiltshire
- Contact:
Re: 70 S, RHD, Signal Orange, UK->Australia->UK
....short lived euphoria.....gets really boring after that!inaglasshouse wrote:.....We inch closer to a finished car......
Darren
72T 2.5... http://ddk-online.com/phpBB2/viewtopic.php?f=10&t=56183
73 2.4E ... http://ddk-online.com/phpBB2/viewtopic.php?f=10&t=44242
77 Carrera 3.0...to 74 3.0RS ... http://ddk-online.com/phpBB2/viewtopic.php?f=28&t=63389
72T 2.5... http://ddk-online.com/phpBB2/viewtopic.php?f=10&t=56183
73 2.4E ... http://ddk-online.com/phpBB2/viewtopic.php?f=10&t=44242
77 Carrera 3.0...to 74 3.0RS ... http://ddk-online.com/phpBB2/viewtopic.php?f=28&t=63389
Re: 70 S, RHD, Signal Orange, UK->Australia->UK
Richard make sure the throttle bodies are set up using a flow bench. It’s imperative that each throttle flows the same mass flow through each throttle. You will be amazed at how much difference in mass flow a tiny adjustment of the linkages make.inaglasshouse wrote:Thanks Andy, good idea.Lightweight_911 wrote:.
Richard - if you don't have any luck closer to home, it would be worth contacting Matt Blast at Eurometrix & Mark Jung at mfiwerks.com in the US
.
Hats off to both Matt and Mark, who replied to my emails very promptly and helpfully. Now sorted (by Mark).
We inch closer to a finished car...
Cheers, Richard.
I’ve made a simple flow bench using a Hoover and a mass flow meter.
If you need any help doing this let me know and I can help.
John
1970 2.2E Coupe.
2004 996 GT3 mkII
2015 Skoda Octavia VRS TSI DSG.
2021 Toyota GR Yaris Circuit Pack
1970 2.2E Coupe.
2004 996 GT3 mkII
2015 Skoda Octavia VRS TSI DSG.
2021 Toyota GR Yaris Circuit Pack
Re: 70 S, RHD, Signal Orange, UK->Australia->UK
Sent from my iPhone using Tapatalk
John
1970 2.2E Coupe.
2004 996 GT3 mkII
2015 Skoda Octavia VRS TSI DSG.
2021 Toyota GR Yaris Circuit Pack
1970 2.2E Coupe.
2004 996 GT3 mkII
2015 Skoda Octavia VRS TSI DSG.
2021 Toyota GR Yaris Circuit Pack
- inaglasshouse
- DDK 1st, 2nd and 3rd for me!
- Posts: 2427
- Joined: Fri Mar 28, 2014 9:35 pm
- Location: Surrey, UK
Re: 70 S, RHD, Signal Orange, UK->Australia->UK
Yeah right! I can't wait to have zero projects, just driving and maintenance.Darren65 wrote:....short lived euphoria.....gets really boring after that!inaglasshouse wrote:.....We inch closer to a finished car......
Of course I say that now...