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post #1 of (permalink) Old 03-08-2018 Thread Starter
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1975 Caprice Classic resurrrection

Hello, Im new to the forum. Thanks for having me. Im currently reviving my moms 1975 Caprice Classic that has been sitting since 1989. It was wrecked in the front right bumper and has sat untouched since then. So far my plans are to keep it bone stock. I have replaced the water pump, fuel pump,radiator,themostat/housing and all the fluids so far as well as a fresh battery. Oh yea , all hoses and belts minus a/c. She fired right up on an exrenal fuel tank as that will be this weekends project. The tank had about 5 gallons sitting since 89. Anyways that it for now, I just wanted to keep some type of journal on this project and this site looked like the perfect place. Trying to upload pics
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if you have a smart device the tapatalk app makes uploading pictures very easy, it does all the sizing work for you automatically.
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Originally Posted by swampcracker View Post
Hello, Im new to the forum. Thanks for having me. Im currently reviving my moms 1975 Caprice Classic that has been sitting since 1989. It was wrecked in the front right bumper and has sat untouched since then. So far my plans are to keep it bone stock. I have replaced the water pump, fuel pump,radiator,themostat/housing and all the fluids so far as well as a fresh battery. Oh yea , all hoses and belts minus a/c. She fired right up on an exrenal fuel tank as that will be this weekends project. The tank had about 5 gallons sitting since 89. Anyways that it for now, I just wanted to keep some type of journal on this project and this site looked like the perfect place. Trying to upload pics
Trying

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Ethanol will dissolve the varnish on the sender bulb and arm but you may be just as well off to replace the tank. The 15% Ethanol fuels will loosen up any varnish and crud you didn't find.

The original fuel hose is SAE J30R7. That's been superseded by SAE J30R9 for liquid fuels. The old J30R7 hose will not put up with the E10 & E15 Ethanol adulterated pump fuels and likely it's quite brittle after 43 years under the car.

I'd replace the sender hoses on the tank with new SAE J30R9 hose. You can find Gates J30R9 fuel hose at O'Rileys. Don't use Worm clamps. Either get German Fuel Injection clamps or Constant Tension Spring clamps. You can buy assortments on Amazon. Stay away from the super cheap assortments. You can get decent assortments for around $20.

If you haven't replaced the fuel hose(s) between the frame line(s) and the fuel pump I'd replace them with the same J30R9 hose.
Your Evap charcoal can purge hose and PCV hose should be SAEJ30R7. You can use J30R9 it's just more expensive.

You may find the tip on the float needle valve inside the carburetor gives way after a few days or hours of operation on E10 or E15 fuel. If it's a Rochester 2G they're bloody easy to rebuild. Just be sure to get a carb kit that hasn't been collecting dust on some shelf. Old kits may not have the ethanol resistant tip on the needle valve and the paper/cardboard gaskets can get crumbly just like the pages in antique books.
There are reputable outfits that re-build the Rochester Quadrajets. Don't attempt one of those as your first carb re-build.

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Last edited by hatzie; 03-09-2018 at 07:41 AM.
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Originally Posted by hatzie View Post
Ethanol will dissolve the varnish on the sender bulb and arm but you may be just as well off to replace the tank. The 15% Ethanol fuels will loosen up any varnish and crud you didn't find.

The original fuel hose is SAE J30R7. That's been superseded by SAE J30R9 for liquid fuels. The old J30R7 hose will not put up with the E10 & E15 Ethanol adulterated pump fuels and likely it's quite brittle after 43 years under the car.

I'd replace the sender hoses on the tank with new SAE J30R9 hose. You can find Gates J30R9 fuel hose at O'Rileys. Don't use Worm clamps. Either get German Fuel Injection clamps or Constant Tension Spring clamps. You can buy assortments on Amazon. Stay away from the super cheap assortments. You can get decent assortments for around $20.

If you haven't replaced the fuel hose(s) between the frame line(s) and the fuel pump I'd replace them with the same J30R9 hose.
Your Evap charcoal can purge hose and PCV hose should be SAEJ30R7. You can use J30R9 it's just more expensive.

You may find the tip on the float needle valve inside the carburetor gives way after a few days or hours of operation on E10 or E15 fuel. If it's a Rochester 2G they're bloody easy to rebuild. Just be sure to get a carb kit that hasn't been collecting dust on some shelf. Old kits may not have the ethanol resistant tip on the needle valve and the paper/cardboard gaskets can get crumbly just like the pages in antique books.
There are reputable outfits that re-build the Rochester Quadrajets. Don't attempt one of those as your first carb re-build.
Thanks for the heads up and knowledge on the hoses and connections. Just thought I would try and see if I could get by with the old tank with all new hose. I should know after dropping it this weekend. Price for new wasn't too bad with sending unit but I'm on somewhat of a budget so I will see. After rebuild of quatrajet and the other work thus far last thing I want to do is run with a disentagrading tank. Thx for the info !

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post #6 of (permalink) Old 03-09-2018
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Welcome to the forum.
Yikes on the price.....
https://www.ebay.ca/itm/1975-CHEVY-I...VUGe13&vxp=mtr
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http://www.crateenginedepot.com/350-...09-P10380.aspx

1983 Caprice Classic. 350 CID. 330 HP. 380 Ft.Lbs. Torque. Turbo 350 Trans. with Cooler.
Holly 0-83670 4 Barrel Carb. Headman Headers. Magnaflow Cats. Flowmaster Delta 50 Mufflers.
Electric Fan. Compu Star Alarm. Sony F-50 dash-cam with GPS Antenna. Crazy Canuck behind the Wheel.

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Welcome to the forum.
Yikes on the price.....
https://www.ebay.ca/itm/1975-CHEVY-I...VUGe13&vxp=mtr
OWCH!!!!
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OWCH!!!!
Interesting. Luckily the front bumber has only a slight pinch that I will live with for now, just need a grill header and hood , light bezel. Also something very interesting is the fact this vehicle came with square headlights. Supposed to be round. Square came out in 76.

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You may be able to use Pontiac or Buick headlight surrounds hood and filler panel between the hood and the grille. Not sure if they shaped them a bit different or not.

The plastic lower filler pieces may be a bit more difficult to source. I've read about guys fabbing and replacing those with painted steel.

On the fuel tank subject. I'd add an inline metal can filter between the fuel pump and the carburetor at least for the first 15,000 miles. Those are easier to find and replace than the sintered Bronze or teeny tiny paper element filters in the carb inlet. Leaves you the carb inlet filter as a second line of defense too.
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Originally Posted by hatzie View Post
You may be able to use Pontiac or Buick headlight surrounds hood and filler panel between the hood and the grille. Not sure if they shaped them a bit different or not.

The plastic lower filler pieces may be a bit more difficult to source. I've read about guys fabbing and replacing those with painted steel.

On the fuel tank subject. I'd add an inline metal can filter between the fuel pump and the carburetor at least for the first 15,000 miles. Those are easier to find and replace than the sintered Bronze or teeny tiny paper element filters in the carb inlet. Leaves you the carb inlet filter as a second line of defense too.
Thanks, all the info I can gather at this point is a tremendous help. Also good point on the added fuel filter. That can't hurt for sure. I'll get a good look at the tank this weekend, I may just replace, not sure yet.

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What other beauties are beside that car? Looks like a nice little collection.
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Nice car, I absolutely love the late 60's and early 70's impala/caprice's.
Two-doors are my fav.
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What other beauties are beside that car? Looks like a nice little collection.
Dodge challenger to the left, charger to the right , and to the right of that is a super b, not in pic. Those aren't mine unfortunately. Lol

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Dodge challenger to the left, charger to the right , and to the right of that is a super b, not in pic. Those aren't mine unfortunately. Lol

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Here's a better view

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Quote:
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Dodge challenger to the left, charger to the right , and to the right of that is a super b, not in pic. Those aren't mine unfortunately. Lol

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i know this is a chevy forum, but how about some more pics of the mopars? lol
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