I have a 2.8L that’s been converted to a mechanical fuel pump. However I popped the valve cover off today and found that no fuel pump eccentric was ever installed.[emoji849]

 

Is the eccentric the same for 240z, 260z, 280z?

 

If so, anyone know where I can find one? Anything special about the install?

 

 

 

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3 hours ago, kcpope said:

converted to a mechanical fuel pump. However I popped the valve cover off today and found that no fuel pump eccentric was ever installed.

First .. LOL!  I see it's also coverted to carbs  (As mech.fuelpump and injection would not work together..)

You can use any eccentric used in a 240 or 260z  or even other mech. fuelpump  6 cyl.cars from nissan i think? They all have the same eccentric for the fuelpump.

I assume it does not run..? didn't run? If it runs.. Maybe it has also a electric fuelpump as some 260Z's i heard have those.. (i still find it strange to have 2 fuelpumps.. in series that is!!)  but they exist..

Check your fuelpressure in front of the carbs, they don't like a high ( some/most? elec.pump's.) pressure..

When i looked at your chain.. does it mis the closing lock at 3 o'clock? (Looking from the front)  Can't see it very clear but check it please!

I probably have an eccentric laying around if you need one. Just PM me.

 

 

maybe the mechanical pump is for looks along with the carbs. 

does it have an electric pump as well? 

I'm in the same boat as @jonbill. Never seen that before. I'm not sure it would flow enough off the cam nose bolt? The little square on the pump's arm wouldn't be friendly on that big nut's square sides I would think. Stranger things have been seen many times by me on here so who knows?

Google is your friend.

https://www.google.com/search?q=fuel+pump+eccentric+240Z&oq=fuel+pump+eccentric+240Z&aqs=chrome..69i57j33i160j33i15i22i29i30.6975j0j7&sourceid=chrome&ie=UTF-8

Alexa is my main squeeze, then Xfinity's support girls are my stood by's. I like the way they call me "Mr Vealson". 

maybe the mechanical pump is for looks along with the carbs. 
does it have an electric pump as well? 

No electric pump. It’s a 72 240z with a L28 that the previous owner dropped in, but never fully finished, as I’m finding out.


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I'm in the same boat as [mention=32065]jonbill[/mention]. Never seen that before. I'm not sure it would flow enough off the cam nose bolt? The little square on the pump's arm wouldn't be friendly on that big nut's square sides I would think. Stranger things have been seen many times by me on here so who knows?

Haha, I don’t believe it’s ever been started in its current configuration. Doubt the pump would run off the cam bolt head like that [emoji23]. PO just slapped the carbs and mechanical pump on to have it appear “complete”, then sold it.


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When i looked at your chain.. does it mis the closing lock at 3 o'clock? (Looking from the front)  Can't see it very clear but check it please!

Closing lock? Can you elaborate on what that is?


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3 minutes ago, kcpope said:

No electric pump. It’s a 72 240z

Pretty sure the wiring for it is there though.  Look at the last few posts in the Z's on Bat... thread about the V-3 kit.  Mechanical pump alone does not work well.