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Project 928.
- Thread starter igaffz
- Start date
I decided I needed to get to grips with my heaters stuck on hot. It meant after 15 mins it was like a furnace in the car, and summers coming!
Anyway after a lot of searching on the Internet I hatched a plan of Atrack. All the mixer flaps that control hot and cold and direction of air are controlled by vacuum. I bought a cheap vacuums pump with gauge of the bay and set about checking for vacuums leaks. Baisically I removed the centre console to expose the manifold and checked each vacuum pipe for leaks. All checked out fine so the fault was elsewhere. I then changed the hot water valve at the firewall but this didn't make any difference either. I then found the stepper motor that controls the position of the main mixer flap that mixes the hot and cold air. I found the flap was jammed in the hot position so gave it a hard pull and the motor would now give me full hot and full cold but nothing inbetween! I read that you could remove the motor and clean the insides, this made no difference so I removed it again and decided to follow some other channel advise and resoldered all the contacts inside the motor and replace the transistors.
Pic of motor that controls the flap
I removed these
From this
And put in these new ones
You could have knocked me over with a feather when I realised I had fully functioning Heaters!
I also picked up some wheels cheap last week, I've put them on the car temporarily to see if I liked them.
I think I do, so I'm going to get them refurbed in dark silver/grey when I've sorted the body work.
:thumbs:
Ian
Anyway after a lot of searching on the Internet I hatched a plan of Atrack. All the mixer flaps that control hot and cold and direction of air are controlled by vacuum. I bought a cheap vacuums pump with gauge of the bay and set about checking for vacuums leaks. Baisically I removed the centre console to expose the manifold and checked each vacuum pipe for leaks. All checked out fine so the fault was elsewhere. I then changed the hot water valve at the firewall but this didn't make any difference either. I then found the stepper motor that controls the position of the main mixer flap that mixes the hot and cold air. I found the flap was jammed in the hot position so gave it a hard pull and the motor would now give me full hot and full cold but nothing inbetween! I read that you could remove the motor and clean the insides, this made no difference so I removed it again and decided to follow some other channel advise and resoldered all the contacts inside the motor and replace the transistors.
Pic of motor that controls the flap
I removed these
From this
And put in these new ones
You could have knocked me over with a feather when I realised I had fully functioning Heaters!
I also picked up some wheels cheap last week, I've put them on the car temporarily to see if I liked them.
I think I do, so I'm going to get them refurbed in dark silver/grey when I've sorted the body work.
:thumbs:
Ian
Ha ha lads, this thread will have plenty of content!
Chief, 928's have weird suspension, after you've jacked the car up it takes a few miles of driving befor they settle, plus it's a bit high anyway. Also I've removed the front splitter to repair it which dosent help. Anyway it will all be sorted with the new coil overs :grin:
Ian
Chief, 928's have weird suspension, after you've jacked the car up it takes a few miles of driving befor they settle, plus it's a bit high anyway. Also I've removed the front splitter to repair it which dosent help. Anyway it will all be sorted with the new coil overs :grin:
Ian
:thumb: 8)igaffz said:I also picked up some wheels cheap last week, I've put them on the car temporarily to see if I liked them.
I think I do, so I'm going to get them refurbed in dark silver/grey when I've sorted the body work.
:thumbs:
Ian
Cheers imp75.
A couple of weeks ago I removed the front splitter. It was held together with black tape and looked a right mess. Anyway it looked even worse when I pulled the tape off!
It's made out of a hard rubber and it appeares to be a common week area being quite close to the ground.
One side had a large crack and the other side was totally detached. I started by giving the areas to be treated a good key with sand paper. I also drilled some holes to take some of the resin. I started with the crack and cut a pice of ali mesh for strength. I then fiber glassed the back side of the crack and sandwiched the mesh in for strength.
Then I used some flexible bumper filler on the outside of the crack and rubbed it down, I built it up with a couple of coats.
I didn't get a pic but the side that was totally smashed in half was a bit harder! I cut a strip of metal and riveted it to each part of the splitter with three rivets. That gave it a bit of strength till I could get the fiber glass on.
Then i used my flexible filler again.
After sanding I gave the whole splitter a key with wet and dry and primed the areas I had repaired.
Tonight a gave it a couple of coats of mat black, the garage was to gloomy to take a decent pic so I'll post up the results tomorow, I'm well pleased with it, it looks like new and probably stronger! I'm canny impressed with the flexible filler, you can bend the splitter and the filler dosent crack! If I'd done this with filler available 10 years ago it would have fallen to bits after 30 seconds!
Ian
A couple of weeks ago I removed the front splitter. It was held together with black tape and looked a right mess. Anyway it looked even worse when I pulled the tape off!
It's made out of a hard rubber and it appeares to be a common week area being quite close to the ground.
One side had a large crack and the other side was totally detached. I started by giving the areas to be treated a good key with sand paper. I also drilled some holes to take some of the resin. I started with the crack and cut a pice of ali mesh for strength. I then fiber glassed the back side of the crack and sandwiched the mesh in for strength.
Then I used some flexible bumper filler on the outside of the crack and rubbed it down, I built it up with a couple of coats.
I didn't get a pic but the side that was totally smashed in half was a bit harder! I cut a strip of metal and riveted it to each part of the splitter with three rivets. That gave it a bit of strength till I could get the fiber glass on.
Then i used my flexible filler again.
After sanding I gave the whole splitter a key with wet and dry and primed the areas I had repaired.
Tonight a gave it a couple of coats of mat black, the garage was to gloomy to take a decent pic so I'll post up the results tomorow, I'm well pleased with it, it looks like new and probably stronger! I'm canny impressed with the flexible filler, you can bend the splitter and the filler dosent crack! If I'd done this with filler available 10 years ago it would have fallen to bits after 30 seconds!
Ian
Got the splitter fitted today, got to be worth an extra 10bhp!
Last weekend I got another job ticked off the list. I removed the petrol tank and breather tank, all the jubilee clips had rotted off years ago so fitted new ones and rubber pipe where needed.
Cleaned out the tank
I found this inside the tank! Anyone know what it's for? My dad thought it might be to slide around the bottom of the tank to stop a build up of bad fuel/dirt?
Cut the metal fuel lines as far forward as possible and connected new nylon fuel lines with 10mm compression fittings.
Fitted the new pipe into new clips.
After a test run there's no leaks so all good upto now :thumb:
I've had an ongoing issue with fuel smell coming from the vent tank breather pipe so I've ran the pipe to the centre of the rear bumper and this seems to have sorted it? It was cable tied under the rear wheel arch and the smell of petrol was coming in the windows so hopefully I've sorted it?
Ready for our local run out tomorow, please don't let me down old girl :flowers:
Ians
Last weekend I got another job ticked off the list. I removed the petrol tank and breather tank, all the jubilee clips had rotted off years ago so fitted new ones and rubber pipe where needed.
Cleaned out the tank
I found this inside the tank! Anyone know what it's for? My dad thought it might be to slide around the bottom of the tank to stop a build up of bad fuel/dirt?
Cut the metal fuel lines as far forward as possible and connected new nylon fuel lines with 10mm compression fittings.
Fitted the new pipe into new clips.
After a test run there's no leaks so all good upto now :thumb:
I've had an ongoing issue with fuel smell coming from the vent tank breather pipe so I've ran the pipe to the centre of the rear bumper and this seems to have sorted it? It was cable tied under the rear wheel arch and the smell of petrol was coming in the windows so hopefully I've sorted it?
Ready for our local run out tomorow, please don't let me down old girl :flowers:
Ians
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