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jalexquijano

Tempted on removing, cleaning and reinstalling hitachi original distributor on my 240z

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The other day i found some spare gaskets and ring that are supposed to be installed before the distributor is inserted in the key shaft. However, i remember that last time i did that i had to call a mechanic because when i installed the distributor back the engine did not crank.

https://zcardepot.com/distributor-installation-kit-gasket-hardware-240z-260z-280z.html

Is this so complicated? I thought it was a simple plug and play procedure?

 

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 It is plug and play but not quite simple. Even if you drop the dist. back in and it aligns with the tang on the oil pump drive shaft, the base has to be in the exact location (rotation wise) to ensure the ignition timing is the same as before, assuming it was correct before. It's a good idea to check the ignition timing anytime the dist. has been removed and replaced.

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2 hours ago, jalexquijano said:

Straight ahead. 

Hold that thought, laminate it and post in on the refridgerator door, and refer back to it often.

Dennis

  • Haha 1

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18 hours ago, Mark Maras said:

 It is plug and play but not quite simple. Even if you drop the dist. back in and it aligns with the tang on the oil pump drive shaft, the base has to be in the exact location (rotation wise) to ensure the ignition timing is the same as before, assuming it was correct before. It's a good idea to check the ignition timing anytime the dist. has been removed and replaced.

How do i assure it is in the exact time before cracking the engine? Last time i removed it i couldnt crank the engine but after several attempts i could only hear an explosion so i had to call the mechanic.

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4 hours ago, jalexquijano said:

How do i assure it is in the exact time before cracking the engine? Last time i removed it i couldnt crank the engine but after several attempts i could only hear an explosion so i had to call the mechanic.

Make sure the triggering mechanisms are in the same place before and after the swap.  In this case you'd have to know how the electronic trigger works compared to the points trigger.  It's a bit more than plug and play, more like like plug, fiddle around, examine and adjust, then play.

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There is a guy on youtube that has a video on installing a reconditioned distributor on a 280z. However, he says that the distributor can only be installed in one way. I want to replace the o ring and the base gasket and wouldnt like to hassle with a wrong installation again.

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On 9/11/2018 at 2:10 PM, jalexquijano said:

The other day i found some spare gaskets and ring that are supposed to be installed before the distributor is inserted in the key shaft. However, i remember that last time i did that i had to call a mechanic because when i installed the distributor back the engine did not crank.

https://zcardepot.com/distributor-installation-kit-gasket-hardware-240z-260z-280z.html

Is this so complicated? I thought it was a simple plug and play procedure?

I misread your first post.  I thought you were replacing your electronic distributor with an old points distributor.  Now I see that you're just removing the distributor, cleaning it, and putting it right back in.  The same distributor.

It should be very simple as long as you mark the adjustment setting before you remove it, so that you can set it to the same timing.  Mark the mount and the distributor and match them up on reinstall.

And yes, they do only install one way.

image.png

Edited by Zed Head
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Just took some pics of the original hitachi single point distributor before i attempt any removal, inspection of gasket and reinstallation. Dont notice any oil leaks but would like to be sure it has the o ring and base gasket in place. Please guide me on the removal and reinstallation process. Last time i did this the engine did not start.

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2 hours ago, Freez74 said:

It's not leaking? Why do you want to remove it?

My thoughts exactly.....”If it ain’t broke, don’t break it!”

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38 minutes ago, Diseazd said:

My thoughts exactly.....”If it ain’t broke, don’t break it!”

Yes, exactly!!

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 Unanimous. Find something else to work on unless you're like me and your obsessive curiosity won't let you rest until you know what went wrong the first time around. In that case, grab a service manual, and maybe a timing light and have another go at it. You only need to remove the two lower bolts to remove the dist. If you loosen the upper one you'll screw with the ignition timing. BTW, the dist. may be original but it's been upgraded. It no longer has points or a condenser .

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1 hour ago, Mark Maras said:

You only need to remove the two lower bolts to remove the dist. If you loosen the upper one you'll screw with the ignition timing. 

He wants to replace the o-ring, which requires removing the adjustment screw.

If people weren't working on their cars the site would probably die.

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I have some fun for us all though.  I'm not positive but I think that somebody has installed the plate on the bottom of the distributor backwards or sideways.  Not even sure how the distributor is clamped down to avoid rotation when the engine is running.  Might explain many past problems.

Where is the screw?

image.png

image.png

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42 minutes ago, Zed Head said:

He wants to replace the o-ring, which requires removing the adjustment screw.

If people weren't working on their cars the site would probably die.

This is very true in a broad sense, but it is easier for some people to get out of the hole than others

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However you look at it, he does have a new different problem that he should fix.  If his distributor is not locked own, his timing is going to walk eventually.

Beside that, this a proper, separate, thread.  Nobody has to get involved if they don't want to.  Just saying, it's his own hole, let him dig.

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9 minutes ago, Zed Head said:

However you look at it, he does have a new different problem that he should fix.  If his distributor is not locked own, his timing is going to walk eventually.

I might be wrong about his problem though.  In that picture I expected to see the locking screw.  Maybe the 240's have it on the other side, and adjustment marks on the side I see.

Should be where the red arrow points.

image.png

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Mark the distributor here, remove the screw on the other side, pull the distributor straight up.

Not the screw pointing upward, but the screw you can see from the top.

image.png

Edited by Zed Head

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