Type 4 Questions

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Type 4 Questions

Post by 71_georgia_beetle on Wed Dec 03, 2008 1:22 am

To start off, what the hell are some people thinking? The PO said "just did the tune up with all new parts'. The condenser had a splice inside the dist, the outside line was so age cracked I think it was the original 74, .35 gap on the plugs, tip on rotor was almost gone, no gaskets on the sump screen just silly cone and judging from the amount of shit inside it had never been cleaned, Weber carb with a Holley choke and believe it or not with 2" screws that big bastard will fit but it might be the cause of my erratic 2500 rpm revs at warm up, remnants of years of wiring removed to the tune of about 4lbs, valve measurements all up and down the scale and the little rat in the engine was the squeak, squeak, squeak from the never greased cam lobes in the distributor . Rants over, question:

1. On that POS Pinto Weber carb I only get spray on the front most throat. The rear has a small drip when the throttle is fully engaged. Is that how they work?

2. I have your standard blackish, dry build up on 1 and 3 but 2 and 4 have a red build up. Looks like rust. Is it?

3. From the manifold there is a hose that runs all the way up to the brake booster. What is it and what does it do?
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71_georgia_beetle
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Re: Type 4 Questions

Post by Hobug on Wed Dec 03, 2008 8:28 am

Question 1 - Can't help with that one

Question 2 - All the plugs should be the same (duh). I doubt it is rust, but it sounds like that side isn't firing right or maybe running lean (?). I have a book with pictures of plugs and what causes each type of coloration. I'll look it up when I get home tonight.

Question 3 - The hose is most likely vacuum to make the booster work.
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Re: Type 4 Questions

Post by bumblebuggy on Wed Dec 03, 2008 9:00 am

1- Throw that POS off a cliff and get yourself a real carb. I beleive it's a progressive carb and sounds like the secondary or idle jet may be clogged. Personally leaning towards idle based on you're discription of idle problems above.

2- Rust? Never seen a plug that color before. Sure it's not just brown?

3- X2 what he said but that's just a guess from me.
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Re: Type 4 Questions

Post by 69panel on Wed Dec 03, 2008 9:23 am

The only one I'm positive about...That line is vacuum for the power brake booster.
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Re: Type 4 Questions

Post by 71_georgia_beetle on Wed Dec 03, 2008 11:22 am

I figured out that the red deposits are from fuel additives but what gets me is 1 an3 are black and 2 and 4 are red. Segregation! Engine racism!
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Re: Type 4 Questions

Post by Pop in NW Ga on Wed Dec 03, 2008 4:18 pm

The rear throat in your carb is a secondary, so your seeing a normal situation.

I would suggest rebuilding that carburetor.

My son has a magic touch when it comes to Weber progressive carbs.
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