unimogjohn

Avanti R2, 1963, refresh

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post-121302-0-97397800-1458269677_thumb.John:

We are at the Chickasha swap meet and today we were invited to tour some fabulous collections. I am always fascinated by the accounts of the Matheson rebirth. Only knowing of the car by factory photos.. Tonight, I actually got to be in the presence of this magnificent machine. Wow!!!

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The Matheson engine Greg is working on is huge and fascinating, some very innovative engineering.  I think there are only a few Matheson cars extant, Larry it looks like you were able to visit a beauty!

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It' Saturday, and snow is coming.  Thankfully, not much, just an inch or two by tomorrow.

I spent about four hour working on taking off the air intake of the Suburban's 6.1 engine.  Down to the point of actually removing the intake.  Had to disconnect the wiring harness, many plugs, fuel injector wiring, etc.  Now for the fuel lines and the intake.

Found a couple of issues so far.  The main wiring harness goes across the top of the engine and is wrapped in black tape except where it goes under a cover, which holds it in place.  The wiring that is exposed is starting to chafe so am going to wrap that portion before I put it back together.   Also, there is a small coolant line, which attaches to the throttle body, has been dripping.  That could be the cause of the knock sensor failure.   The wiring for the injectors was tough to figure out the removal process.  But was able to get them all off without damage.  

Here are pics of yesterday's work.  And found lots of hickory nuts in the intake valley.  Great storage area.

And I received lots of help from YouTube also.

 

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It is Monday, March 21st, PM.  Well I spent a few hours on the Suburban today and was able to get the intake off.  Tomorrow I will start the clean-up.  I will replace the oil pressure sender, which is buried under the intake on the back of the engine (brown case two wire switch in pics).  I have also ordered a new intake gasket and one for the throttle body.  Glad I did after looking at the original.  

I was surprised to see the intake runners so dirty.  Will attempt to clean them up with carb cleaner.  

Everything was a tight fit, but just took my time to get the manifold off the engine.  So far nothing broken.  Took Corvette Wayne's advice and ordered a new wiring harness for the knock sensors also.  He said that his old one was brittle.  

Here are the pics from today, to include all the nuts I found on top of the manifold. I am going to tape up the wiring harness bundles also.  No clue why the factory did not do it.   

Also Greg is coming over to take a good look at the four post lift.  He is thinking of getting one.  He is getting tired to laying under cars also.

 

 

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Still Monday PM.  Avanti Greg stopped by to take a look at the four post lift.  He is going to pull the trigger and get one.  

And taking a 200 mile road trip with Camaro Steve tomorrow.  We are going to look at a 1954 Ford pickup sitting on top of a 89 Ford Bronco frame and drive train.  Looks great in pics and the price is right.  We are going to haul up my open trailer just in case.  Steve says he will have cash in his wallet.  I love to help others spend money.

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Tuesday, PM, March 22nd.  Camaro Steve and I took a long road trip today.  A couple of hundred miles or so.  But we had a good time and Steve came home with is new 1953 Ford P/U truck.  Certainly a modified truck, but not much money.  A good running engine too.  It is a minus driver quality truck, but with some love and attention and maybe $2K, it will be a great driver.  

 

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John, pictures aren't coming up for me, don't know if it's a posting problem or my computer problem!  dc

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19 minutes ago, trimacar said:

John, pictures aren't coming up for me, don't know if it's a posting problem or my computer problem!  dc

 

They work fine for me.

 

Phil

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28 minutes ago, trimacar said:

John, pictures aren't coming up for me, don't know if it's a posting problem or my computer problem!  dc

David, I tried without success to post pictures with Internet Explorer 9; with IE 11, I can. Maybe you have to do some update to your computer.

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The forums have been going through an emergency update.  Things are slowly being fixed.  I can post and see my pictures, but others I cannot.  I guess we will have to wait a week or so before everything is sorted.  

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AACA is back up, at least for now. second time in the past week. someone on another AACA forum stated it has been spammed by North Korea!:unsure:

 

no problem seeing pics here. using Firefox.

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No problem I'd rather have some minor inconvenience than have the stupid spam, and our AACA guys are working hard..

 

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22 hours ago, trimacar said:

John, pictures aren't coming up for me, don't know if it's a posting problem or my computer problem!  dc

 

 

  Using CHROME. Pictures are great for me.

 

  Ben

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Oh boy, just got a note from Greg.  He pulled the trigger and ordered an Atlas extended four post lift.  It may even be here tomorrow.

 

I was able to do a little cleaning on the Suburban engine, hope to do more today.  

 

Hard finding some time with all the farm chores that I have been ordered by the boss to do.  Also Alice has decided to paint the house so getting the old sprayer out, cleaned and ready to go took considerable time.  She says that she is going to do it.  Has already pressure washed the front of the house and did the calking too.  Ready for paint today.  Looks like the house if going to be battleship gray with white trim.  

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Friday, March 25th.  Well, I wish I could report that the Suburban was all back together.  It is not.  Alice has me painting the house while the sun shines.  So I am praying for bad weather.  

 

Did get the Jaguar clock back.  It will go in tomorrow, going to sneak some time.  

 

 

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It is Monday, March 28th.  Camaro Steve came over yesterday morning with is 1953 Ford F100.  We spent some time looking around and determined that he has 1980 Bronco running gear, not 1977.  Also he has a ton of play, like 20 degrees on the wheel.  I could see the steering gear mount flex and move.  I am sure that it is some of the movement issue.  I think I have him convinced to take the truck to a professional truck performance shop for an evaluation and recommendation of the repair necessary.

 

And I got back on the Suburban this morning.  Everything is all clean and I removed the oil pressure sensor and the two knock sensors.  The back one was toast.  A rusted mess.  It was entirely filled with water to include the electrical connector.  No wonder it failed.  I also have a new sensor wiring harness, so I do not have to use the old one.  

 

 I also removed the foam dam from behind the intake as per the service bulletin and will put in the RTV dam around the sensor plug holes to deflect any water from getting to the sensors.  I also taped up all the loose wires in the loom.  

 

Plan on doing more work this afternoon.

 

 

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Still Monday, just a quick afternoon update.  The new knock sensors are in and the protective dam built.  The dam is so water cannot go into the sensor wells, the water is diverted around them and out of the back of the intake.  This is the official GM fix to the problem.

 

And I took ten minutes and put in the Jaguar clock.  It is ticking away.

 

 

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Edited by unimogjohn (see edit history)

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Tuesday, March 29th, PM around 4.  The Suburban is finished and she actually runs.  Took my time today so spent about five hours on finishing the job of putting in the knock sensors.  The new sensors had a much tighter rubber sealing ring for the sensors.  I was happy about that.  Cleaned up the intake and started to put on the new gaskets.  Opps, wrong ones.  Totally different than mine, so off to NAPA.  They had them for $48.  Everything else went smoothly and I got everything back on without damage or breakage.  The big air box went in sideways and was able to get it to drop down moving it an inch or so at a time.  This was a big job.  No wonder the dealer wanted $700 in labor for it.  Oh, and my oil pressure gauge in the dash now works correctly.  Now I am happy.  

 

I also got some reusable spill stuff for the garage, and a hand held infrared temperature sensor.  

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Looks good John.  I imagine it was a relief to get the SUV put back together.  That is the kind of job I shy away from on my modern cars, but if a dealer quoted me $700 in labor I might be motivated to try it.

 

Joe

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It is Wednesday, March 30th.  Spent the afternoon over at Greg's place.  Helped him assemble the new four post lift.  Everything went smoothly, and in about three hours we had the decks installed, cables run and power station installed.  Had fun, but of course everything was very heavy.  Had to use various jacks and lifts to help us out.  Greg only has the hydro fluid to put in the motor and install the unlocking mechanism controls, and then he will be ready to use the lift.  

 

 

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John:

 

In your announcement post that told us Greg had purchased a 4-post lift you stated that it was an "extended" lift.  I thought extended meant it was taller than a normal 4-post lift.  But looking at your pictures, it appears the posts are normal height.  Does extended mean taller or longer?

 

Thanks.

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Joe, it is about two feet taller than the normal 4 post.  Hopefully, both of us can get our really old cars under with the tops up.

 

And for the "rest of the story" here is a report from Greg on his uplifting experience.

 

" Yes,  been busy taking advantage of the Spring weather with some heavy lifting.  I've decided that it's just not fun anymore to lie beneath a car on jackstands.   Because it isn't,  some things just don't get done.

   

I deserve a lift  like John Feser  and Rob Burchill.  Did some research and decided on a four post type.  They are free standing and don't need to be anchored to the floor.   Drive the car on, push a button.   They are also convenient for added storage when used for double decker parking.   They also come with a castering attachment to allow moving it around.  A call was made with a Social Security check in hand.

             

Delivered by truck freight,   it took five or six of us to uncrate and unload it piece by piece.   Shipping weight heading towards a ton.

           

So the past few days have seen me working on the hill where it is being erected outside where there's room and with help today from John Feser and Scott,   it should be ready to rock and roll.  Now to make room for it inside the tin barn.

     

Hasn't been much time for anything else.   Need to get it indoors before the rumored rain tomorrow evening."

          

           

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Thursday morning.  Looks like Greg has achieved "lift off".

       

" Got the hydraulic fluid, a contractor's grade extension cord and after some circuit breaker problems, was able to lift the lift.    Seem to have the release rods working and this morning I was able to lower onto the casters, and manhandle it into the building by myself.   Now it is parked with a Dodge on it.

           

Thanks for your help,  glad that's over with."

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