1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

Engine cranks but will not fire

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Old Jul 22, 2007 | 05:13 PM
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From: houston
Question Engine cranks but will not fire

I own a 82 gsl the guy hho built it had the engine built in washington
i love this car byt recently it has had some problems
i disconected the fuel lines frome the derlato carb and put them back on
it cranked up and then died
i couldnt get it started my friend told me to put oil in the top 2 spark plug holes and then fire it up while i held my foot to the floor
it worked and then it died
i dont know what to do
he says my apex sseal springs are stuck and if i rev the engine they should pop out
it didnt work
i dont know if its a presure isue or if my carb is shot or what can you give me some tips
i realy love this car but if i cant get it runing im gona flip
i have driven it around and then it woulndt start again hit me up please
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Old Jul 22, 2007 | 05:19 PM
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From: Oregon
Welcome to the forum.

A car is a car is a car.
What that means is you need to find out what your engine is lacking to start.

Verify that you have adequate fuel going into the carb.
Verify that you have spark to both leading and trailing plugs.
Make sure that you have adequate cranking speed to get the engine started.
Last but not least if you have verified spark and fuel and cranking speed.
Perform a compression test on the engine.
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Old Jul 22, 2007 | 05:26 PM
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From: Oregon
The section I am directing you via the link is a section which will help you in the future also.

https://www.rx7club.com/1st-generation-specific-1979-1985-18/end-all-no-start-threads-warning-book-inside-162062/

It's called the FAQ section. The link will take you to a no start thread.
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Old Jul 22, 2007 | 05:33 PM
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From: houston
this is my first rex were would i get a tool to check my compresion and my spark also what is the rite engine speed
i apriciate the help
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Old Jul 22, 2007 | 05:38 PM
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From: Oregon
https://www.rx7club.com/1st-gen-archive-71/engine-compression-test-using-piston-engine-tester-597883/
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Old Jul 22, 2007 | 08:57 PM
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From: kendall
what type of fuel pump do you have?...you do say you have a dellorto so thats not stock so if you were running the old fuel pump it could have gone out on you...take a bottle of gas with a line going to the carb and with gravity it should turn on if thats the problem .good luck
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Old Jul 22, 2007 | 09:18 PM
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From: Oregon
Originally Posted by mr.12a
what type of fuel pump do you have?...you do say you have a dellorto so thats not stock so if you were running the old fuel pump it could have gone out on you...take a bottle of gas with a line going to the carb and with gravity it should turn on if thats the problem .good luck

Think about what you just said.

Fuel cannot travel on it's own.

If you squirt some carb cleaner or starting fluid in the carb then that would do the trick.

However, taking the line off of the inlet side and activating the fuel pump with a hose that is routed into a gas can would show whether you are getting fuel or not.
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Old Jul 22, 2007 | 10:11 PM
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From: houston
i see fuel coming up the fuel lines 2 the carb i hear the fuel pump actitivate the fuel comes up the lines very slowly the fuel pump is after market i bought a new bat and it started hopfuly that fixes the problem ill keep u posted thanks alout
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Old Jul 22, 2007 | 10:37 PM
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From: kendall
Originally Posted by rx7doctor
Think about what you just said.

Fuel cannot travel on it's own.

If you squirt some carb cleaner or starting fluid in the carb then that would do the trick.

However, taking the line off of the inlet side and activating the fuel pump with a hose that is routed into a gas can would show whether you are getting fuel or not.
yes i forgot to add to that i know i left something out thank you for adding doc ....well it works for me
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Old Jul 23, 2007 | 12:05 AM
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From: St Joe MO
Welcome to the forum and the Darkside. In my sig lone is a link to the online FSMs, carb manual and other rotary related reading. Download whatever you need and read read read.

Have you checked your fuel filter yet? Might be a good place to start.

Btw, in the top right corner of the post box is a check mark with ABC just above it. It's a new addition to the forum, it's a spell checker. Please make use of it. It will make reading and understanding your posts/questions easier.
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