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1971 Elm Green A/T FI Squareback
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notchboy
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PostPosted: Mon Aug 28, 2017 8:35 am    Post subject: Re: 1971 Elm Green A/T FI Squareback Reply with quote

Great preservation. Good to see her indoors and protected. Now you can put a nice coat of wax on her Wink
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Jason "notchboy" Weigel
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Donnie strickland
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PostPosted: Mon Aug 28, 2017 11:12 am    Post subject: Re: 1971 Elm Green A/T FI Squareback Reply with quote

It just got a wash job the other day!
It spent most of its life garaged, but for the last 4 years/35,000 miles it's been outside. I'm glad to be able to keep it inside again.
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Donnie strickland
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PostPosted: Fri Nov 03, 2017 4:27 pm    Post subject: Re: 1971 Elm Green A/T FI Squareback Reply with quote

Well it was four years and about 40,000 miles ago yesterday when I made my purchase...

A few weeks ago I had a little problem. At random intervals, the engine would shut off for 2-3 seconds. This was a binary, on/off condition, there was no sputtering; it simply would quit running, and then as the car coasted it would resume running again. I suspected an intermittent contact somewhere, or to a lesser extent perhaps a fuel delivery problem.

But I couldn't get it to happen to the point where I could troubleshoot. It never happened at idle, it was only when the car was being driven -- but it wasn't temperature related. It might happen 10 seconds after I drove out of the garage, or after I'd been driving 30 minutes. Then it might not happen for 4-5 days. Once the car shut completely off and wouldn't restart for 10 minutes, but when it did start, it ran perfectly for 4 days.

Then one morning I went to start it and it wouldn't hit. At last, I could see what it was, hopefully. First I checked the FI power relay under the back seat, and then the fuel pump relay under the dash. Both of them were fine. I attached my fuel pressure gauge, and quickly ruled that out. The pump was running fine and the pressure was rock steady while cranking. So, it wasn't lack of fuel.

I checked for spark -- fine. I checked the spark plugs, although I didn't feel they would be the problem. The were also fine.

I went through the FI harness, pulling the wires out of the connectors and tightening the plugs a little, so I could rule that out. No change.

I pulled the trigger points; they looked all right, they were clean and properly lubed. I replaced them with a spare set since I had the distributor out anyway. No joy.

I wondered if my ECU might be on the fritz, but those rarely have any serious problems, so I kept looking elsewhere.

Jim Adney suggested checking the MPS to see if it would hold a vacuum, and so I pulled the hose off of it and checked it; it was fine. I put the hose back on the MPS, being careful not to touch anything else. The car started right up.

I really doubted that could have made any difference, but I decided to send the MPS and my distributor to Jim. He could open up the MPS and see if there was anything going on inside it, and my distributor needed a rebuild anyway. I mentioned to Jim that this past March I had replaced my Bosch Temp Sensor II with a new Bus Depot unit for trial purposes, and he asked if I had tried the old one yet. I had not, although I had checked to see if mine was tight and the wire was making good connection with the harness.

I found when removing my distributor that the vacuum can had a ruptured diaphragm, which must have happened in the last 3,000 miles since it was good when I checked it at the last tuneup. Also, I found that the MPS on my car had a part number starting with 022 -- it was for a Type 4!
Image may have been reduced in size. Click image to view fullscreen.


I sent the parts to Jim, and he returned my distributor, rebuilt, with an NOS vacuum can, and a correct "C" MPS for my 1971 system. I put the new parts on, and two days later, the same problem. So, I decided to reinstall the Bosch Temp Sensor II. Bingo. The car runs fine. Replace with the new sensor, the problem returns.

I checked the sensor out of the car with my multimeter, and it intermittently goes open, at seemingly random intervals. This causes the ECU to open the injectors too long, to the point that the engine can't even run because the mixture is so rich, killing it in a matter of milliseconds. I don't know, of course, if it's just this one sensor or if others have had this problem.

Now it's 10 days and about 600 miles later, and the car is running as well as it ever has. Still getting 26 mpg, same as before, and still enjoying that butter-smooth throttle response you get from an FI car. I'm commuting 60 miles a day now, which is mostly 2-lane US 78, and enjoying the car more than ever. A shot from today:
Image may have been reduced in size. Click image to view fullscreen.


So if anyone is using a Bus Depot sensor and experiences this symptom, you might want to check it out. As I say, it might be just this one sensor that's had a problem, and I'm glad they've stepped up since Bosch quit making these. It's just something else to check.
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71 Elm Green FI A/T Squareback


Last edited by Donnie strickland on Fri Nov 03, 2017 8:25 pm; edited 1 time in total
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KTPhil Premium Member
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PostPosted: Fri Nov 03, 2017 4:45 pm    Post subject: Re: 1971 Elm Green A/T FI Squareback Reply with quote

Thanks for the info and update.

I bought one of those temp sensors as a spare, but haven't had to use it yet. I'm not sure bench testing it will tell me anything, but now I have one more thing to worry about! Wink
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Donnie strickland
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PostPosted: Fri Nov 03, 2017 4:50 pm    Post subject: Re: 1971 Elm Green A/T FI Squareback Reply with quote

That's why I put mine on as soon as I got it -- I wanted to see how it would hold up. It worked fine from March until October...I've thought about taking it apart to see what I can find, but I haven't done anything yet.
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raygreenwood
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PostPosted: Fri Nov 03, 2017 5:30 pm    Post subject: Re: 1971 Elm Green A/T FI Squareback Reply with quote

By the way....there is not much significant difference between,the type 4 B and C and the type 3 C MPS.

I have swapped them back and forth readily. Its a throttle response difference and takes a minor adjustment.
Ray
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Donnie strickland
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PostPosted: Fri Nov 03, 2017 5:37 pm    Post subject: Re: 1971 Elm Green A/T FI Squareback Reply with quote

raygreenwood wrote:
By the way....there is not much significant difference between,the type 4 B and C and the type 3 C MPS.

I have swapped them back and forth readily. Its a throttle response difference and takes a minor adjustment.
Ray


Yes, I don't think that played any part in the issue. Jim had a correct unit, so I just swapped them out since I already had it removed.

I did notice that the throttle response is more linear with the Type 3 unit. The Type 4 unit had more response at initial throttle movement. Do you think that's because the Type 4 is a little heavier car, or because it's a bigger displacement engine?
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Donnie strickland
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PostPosted: Fri Dec 29, 2017 11:25 am    Post subject: Re: 1971 Elm Green A/T FI Squareback Reply with quote

I took off my driver's side door panel to lube the window regulator, since the window was getting balky when trying to lower it. I did find that three of the four regulator bolts were loose. The door after I peeled the vapor barrier back:
Image may have been reduced in size. Click image to view fullscreen.


And a closeup of the fabric on the arm rest clip on the inside of the panel, put there to keep it from rattling when hooked over the finger on the door. Obviously the factory used whatever fabric was at hand:
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EverettB Premium Member
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PostPosted: Mon Apr 27, 2020 11:00 am    Post subject: Re: 1971 Elm Green A/T FI Squareback Reply with quote

I regret to inform the Forum that Donnie Strickland has passed away.

The family has asked me to post as they want to sell his car and would like to get a guess on current value.

If anyone has some opinions as they are familiar with the car or want to review the thread again, please post.

One comment they sent
Quote:
It is drivable but just sitting on driveway. Has a very slow leak of transmission fluid so when we do crank/drive it we make sure there is plenty of fluid in it.

I have all the original paperwork from plus a Volkswagen Fuel Injection Technical Manual.

If you need more information please let me know and I'll provide what I can.


Thank you.
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notchboy
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PostPosted: Mon Apr 27, 2020 12:24 pm    Post subject: Re: 1971 Elm Green A/T FI Squareback Reply with quote

EverettB wrote:
I regret to inform the Forum that Donnie Strickland has passed away.

The family has asked me to post as they want to sell his car and would like to get a guess on current value.

If anyone has some opinions as they are familiar with the car or want to review the thread again, please post.

One comment they sent
Quote:
It is drivable but just sitting on driveway. Has a very slow leak of transmission fluid so when we do crank/drive it we make sure there is plenty of fluid in it.

I have all the original paperwork from plus a Volkswagen Fuel Injection Technical Manual.

If you need more information please let me know and I'll provide what I can.


Thank you.



That's terrible news. I know I for one enjoyed chatting with Donnie on occasion. His approach to maintaining this squareback was indeed a stewardship. No overdone glitzy restoration, just maintain.

I would think its in the 5k to $7,500 market range?
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t3kg wrote:

OK, this thread is over. You win.

Jason "notchboy" Weigel
1964 1500 S
1964 T34 S Convertible
1977 Westfalia Camper pop-top
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Bobnotch
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PostPosted: Mon Apr 27, 2020 1:48 pm    Post subject: Re: 1971 Elm Green A/T FI Squareback Reply with quote

notchboy wrote:
EverettB wrote:
I regret to inform the Forum that Donnie Strickland has passed away.

The family has asked me to post as they want to sell his car and would like to get a guess on current value.

If anyone has some opinions as they are familiar with the car or want to review the thread again, please post.

One comment they sent
Quote:
It is drivable but just sitting on driveway. Has a very slow leak of transmission fluid so when we do crank/drive it we make sure there is plenty of fluid in it.

I have all the original paperwork from plus a Volkswagen Fuel Injection Technical Manual.

If you need more information please let me know and I'll provide what I can.


Thank you.



That's terrible news. I know I for one enjoyed chatting with Donnie on occasion. His approach to maintaining this squareback was indeed a stewardship. No overdone glitzy restoration, just maintain.

I would think its in the 5k to $7,500 market range?


Agreed very sad news. Like Jason, I knew Donnie was more about keeping his VW stock, and made sure he kept it that way. I've enjoyed reading his posts here and on the list (the few times he posted there).
No idea what it'll sell for, as the NADA guide lines are way out of line price wise, but are nice to see. Like Jason said, the upper end (7500) of his pricing is more realistic in what it'll sell for. Just a matter of finding the right person to buy it.
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