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Update on the Little Orange DHC

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adurand
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Update on the Little Orange DHC

Postby adurand » 24 Jun 2009 17:13

First of all, I know this is a bit long, but I wanted to try to get most of the stuff written down!

During the restoration of our 1976 FHC TR7, we obtained a little orange 1981 DHC TR7. About two or three months ago we finally got a chance to start taking a good look at what needed to be done to get it on the road. The previous owner had told us it had been sitting for about 10 years, so we had a lot to look over!

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(Picture taken while trying to teach my brother how to drive a stick [8D]

While in the care of the previous owner, a tree had fallen on the car shattering the driver's side window and damaging the frame of the top. But, since those aren't THAT important [;)] , we decided we would take a look at the engine first.

So we checked the oil, water, and all the other necessities before trying to turn the engine over. Those all looked fine (well, the water didn't "look" fine, but it was there!), it seemed that the oil had been changed shortly before putting the car into storage, so that was still good as well. We also charged the battery, which was also new.

So, time, of course, to start 'er up! (or at least thats what we did)... but of course it wasn't that easy now was it? haha. The engine turned over just fine, but for some reason fuel wasn't getting to the engine. So we removed the hose going from the fuel pump to the carbs to check if the fuel pump was working (it wasn't). After removing the fuel pump, we realized why... Either someone had tried to use oil instead of gas to run the engine, or something was seriously wrong with the fuel pump! For a good 2-3 feet up the fuel line (going to the fuel tank) it was completely and utterly clogged with oil! Thick thick oil! To make a long story short, my dad cleaned it out as best he could with a drill and some weed-eater line so that the gas could get through. We had a spare fuel pump from the work on the FHC, so we stuck that one on there, put a new fuel filter on, and hoped for the best (it worked!). Well, at first it didn't, we had to fill the bowls of the carbs and get a little fuel for the pump to play with before it actually started (as we have learned since then, it doesn't like to run out of gas!). So, first problem solved, woohoo!

As much as I'd like to say everything worked perfectly from there, we all know that would have been almost too good to be true! While I was at school the next week after that, my dad had since started the engine and realized some leaking water around the water pump weeping valve, gah! Why oh why, always the water pump! [;)] After starting it up a few times and getting it to operating temperature, it didn't look like the leak was going away, so it was off to replace the water pump! Out with the old!... but wait...a 6-vane?...From everything I've read on the forums for the past year or four. 1981 DHC 2L had 12-vane pumps? Well by golly mine is going to too! So I ended up getting a 12-vane pump (time will tell whether this was the right thing to do hehe [B)]). As another indicator for my decision on getting a 12-vane pump, I realized that the water pump cover was indeed different than that of the '76 2L we had rebuilt. That was what made my final decision. Anyway, we replaced the pump, and once again we had the engine up and running to test everything out!

After that, the engine seemed to run ok, but there was definatly some tweaking that needed to be done... carbs, distributer, and that fun little thing that needs to be removed: the automatic choke!

Oh, and then there's the brakes! Those would be important huh? The previous owner had said the left rear brakes were locked up, so he had taken it apart. While he didn't put it back together, all the parts were in the trunk for us to stick back on, which we did. New brake pads/shoes all around, and we were good to go!

We finally got insurance, new tires (the old were nice, but dry rotted), and a tag on it about two weeks ago (YAY!). From this point, we have fixed a lot of the major issues, and it does run. It's so fun to drive!

Things that still need to be fixed:
-Vacume advance on the distributer (the diaphragm is broken [:(] does anyone know where to get another??)
-Emergency Brakes... something tells me I put them on wrong?... I pull up the emergency break all the way, but it barely gives any stopping force. From what I can tell, the rear brakes do work, just not the emergency brake? maybe I'm wrong.
-The top! Yes, in the summer heat here in Georgia (the state) we need a top!... or our next "thing to fix"..
-Air conditioning! soon? maybe? it's hot! but this won't help the nice sunburn I got last Sunday from driving it around! (note: use sunscreen)
-Tune the carbs
-Put new windows in (maybe this weekend?)
-Various electronic things including:
--The left headlight won't raise (thinking it's the relay)
--Temp gauge (we have another one, but I'd like the one on the dash to work...)
--Fuel Gauge (new sender?)
--turn signals work... occasionally [;)] (blinker fluid? [:p])

I think that's about all for now. If you see a little orange DHC in North Georgia that still uses hand turn signals occasionally honk and wave!

FI Spyder
TRemendous
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Postby FI Spyder » 24 Jun 2009 18:26

Looks good. I'm sure your emergency brake problem is it isn't connected properly in the drums. When acquiring a car with unknown history I replace rubber gas and cooling hoses, flex brake lines, overhaul master and slave cylinders (brake and clutch.) These items are relatively cheap and prevent fuel or water leaks at the most inconvient times. This gives you a chance to see the condition of the cylinder linings, get fresh fluid in there before corrosion gets to the point were you have to reline or replace them (not so cheap). Also clean/grease all electrical contacts. These, when taken individually, don't take long and can be done as time allows and go a long way to a reliable car rather than waiting for something to go wrong before applying a repair.


TR7 Spider - 1978 Spifire - 1976 Spitfire - 1988 Tercel 4X4 - Kali on Integra - 1991 Integra
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saabfast
TRiffic
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Postby saabfast » 24 Jun 2009 19:50

Most of the little electronic things are likely to be down to cleaning the contacts. they are not good at the best of times and 10 years static would make it worse.

--The left headlight won't raise (thinking it's the relay) - Check and clean the connectors at the front under the bonnet (hood)
--Temp gauge (we have another one, but I'd like the one on the dash to work...) - check the sender by taking the connection off and touching to earth/ground with the ignition on. If the gauge moves to full deflection its the sender needs replacing.
--Fuel Gauge (new sender?) - similar, check and clean the connections at the tank.
--turn signals work... occasionally (blinker fluid? ) - Blinker fluid is no longer available to original spec so clean the fuses (in fact, remove and clean all fuse connections anyway) and flasher unit connections, followed by the bulbs/holders. There are probaly some bad connections. Flasher unit is best replaced with an electronic one, much better and consistent flashing!

BTW, interesting colour - looks like you've been Tangoed


Alan
Saab 9000 Stg 1
Saab 9000 2.3 FPT Auto
'81 TR7 DHC
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birminghamtr7
Wedgista
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Postby birminghamtr7 » 24 Jun 2009 20:44

thats a great colour, the fun is getting the various flaws of a 30 year old car fuctioning. i love it....

if you factor in the earth's rotation, we are all speeding

adurand
Rust Hunter
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Joined: 23 Jul 2006 23:36
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Postby adurand » 25 Jun 2009 14:22

Thanks guys! I'm actually getting to drive it a bit today (with sunscreen this time haha). Hopefully things will just start to work [;)] I've been working in cleaning some of the electrical contacts on the dash (for the lights and such), and we took the instrument cluster out about two weeks ago to check the connections and where all the wires go. Sadly we don't have the wiring diagram for it, and it doesn't match up to the wiring for the '76 (go figure [xx(]) That was to be expected though.

FI Spider,
I figured it was something to do with how I connected it. I'm going to have to get down there and take a good look this weekend or next. The rear brakes are slightly different than on the '76 model. Luckily, the car has a new clutch master and slave cylinder. We replaced the left rear slave cylinder on the brakes, but haven't messed with the rest of them other than bleeding and putting new fluid in the master cylinder.

Saabfast,
As far as the temperature gauge goes, the sender is working correctly because we have another electronic gauge hooked to it. I am thinking it is probably the gauge, because it is getting power and it's grounded properly (at least it goes to where the other gauges are grounded and those are working =P). For some reason it didn't occur to me to check the sender for the fuel tank [xx(] I'll do that soon as well and see if it works! I agree with you with the electronic flasher unit, when the blinkers do work they...flash....very.....slow..ly. However, after turning them on and off a few times and leaving them on for a minute or two the flashing seemed to be faster.

birminghamtr7,
You are very right! Truthfully I love getting things to work... as long as I don't have to do bodywork and painting... I learned the hard way that I don't like to do those at all! Maybe if I had a paint booth instead of the great outdoors it would have been a better experience [;)] I'm not the biggest fan of the color myself, but I must say it has started to grow on me!

As a funny side note, when my dad went to Autozone the other day one of the workers came in and said "Is that a Ferrari" haha. Gotta love it

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