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'79 Datsun Sedan Carburetor issue? Answered

My dad recently purchased a '79 Datsun sedan and we have been trying to make it run for a while, it runs, but it uses a quart jar of gas every 2 minutes of idling, also, we have taken the Carburetor apart and we can get it back together, however we are unsure which is the primary, and which is the secondary fuel jet, as they both have differently sized openings. Thanks for the help.

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coolpizzadude
coolpizzadude

Best Answer 10 years ago

Does the engine have a float? It could be that it's sticking and for some amassing reason not flooding the engine. That's the only way I can see it using a pint a minute.

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An Villain
An Villain

Answer 10 years ago

That helped, it still goes through more gas then it should, but that cut it down to about 1/2 so thanks.

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NachoMahma
NachoMahma

10 years ago

.  Buy a rebuild kit for the carb. It will have all the necessary gaskets and other parts that wear.
.  A saturated float can cause the engine to run rich - make sure you check it. You may be able to find a rebuild kit that includes the float.
.  IIRC, the larger jets go on the secondaries, but it's been a long time since I worried about jet sizes.

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An Villain
An Villain

Answer 10 years ago

We did buy a rebuild kit, it was what got the engine to idle, but now it drinks too much gasoline.

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NachoMahma
NachoMahma

Answer 10 years ago

. Sounds to me as if your best choice would be to take the carb to a real mechanic and get him/her to rebuild it.

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An Villain
An Villain

Answer 10 years ago

Are you saying my dad isn't a real mechanic?

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NachoMahma
NachoMahma

Answer 10 years ago

.  All I'm saying is that a real mechanic:
1) Probably wouldn't have to ask
2) Would have a manual with the answer
3) Wouldn't ask on a general DIY site

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An Villain
An Villain

Answer 10 years ago

I asked, Not my Dad.

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NachoMahma
NachoMahma

Answer 10 years ago

.  Do you have a point or are you just typing to see pretty characters?

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An Villain
An Villain

Answer 10 years ago

Yes I have a point, I am trying to point out that my Dad is more of a Mechanic than you think.

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NachoMahma
NachoMahma

Answer 10 years ago

. Yet the carb does not work.

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caarntedd
caarntedd

Answer 10 years ago

The kit may also have a diagram in it so you will know what is what.

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lemonie
lemonie

10 years ago


A pint a minute?!
You've got a serious problem there. Is there a stink of gas' and a puddle on the floor? I can't imagine how you'd get that much fuel through a car-engine on idle. Maybe it's producing clouds of black soot?

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