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74 260z distributor on wrong ??


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I have been informed it looks like my dizzy was put in off kilter.  not put in properly..  can someone explain to me how this happens.>?  should vacuum point to front of car or drivers headlight? does it need to be flipped around? re adjusted? wrong dizzy? mount to engine on wrong?

i was also told that this is caused by the oil pump gear haft/rod put in wrong. but how does that change where the dizzy sits??  i have looked in the fsm how the dizzy goes on but it does not show how it goes on the mount to engine.  this car has never sparked so something is messed up here.  any help would again be great.. they previous owner had all plugs lined up from 6 at fan and  1 at firewall...

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@Shawninvancouver by reducing the number of threads created you enable others to get see the progression of a discussion (and the progression of the steps that you are attempting while troubleshooting).In the future this also allows for threads to be located by new members, or by people that are searching the web for references to their problems.

Reducing threads also encourages other members to come back to a discussion and offer input.

For example, the discussion is not fragmented across multiple threads we can reference this thread about distributor shaft positioning:

 

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3 hours ago, Shawninvancouver said:

i was also told that this is caused by the oil pump gear haft/rod put in wrong. but how does that change where the dizzy sits?

The oil pump driveshaft and distributor drive quill determine where the rotor will point.  The distributor pedestal/base and the mounting plate under the distributor body determine where the distributor body (the vacuum canister and pickup coil) will sit.

That's why putting the #1 plug wire on the distributor cap terminal often works when people get their parts mixed up and assembled incorrectly.

Have you had the distributor out yet?  Put the ignition timing mark on zero with #1 on the compression stroke and see if the half-moon looks like this picture.  If it does then just getting a new and correct distributor might solve your problems.

I borrowed this from a Chickenman post. @siteunseen has a good picture too.

image.png

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I think if you read this you may understand what we're saying. You should pull the dizzy out and see where the spindle is sitting. Get the motor at tdc, explained in this thread, then pull the distributor. It could be something simple but the only way to find out is get out there and try to figure it out yourself. We'll help all we can but there's no shortcuts looking at a screen.

When you're at tdc and then remove the distributor this is what you should see...

image.png.e9bc9f7a0ec98a9d78bf3f6114e27654.png

 

Edited by siteunseen
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It's 180 degrees off plus a tooth or 2 off the spindle gear. The small side should be facing the radiator. Your's, the windshield. You have to drop the oil pump to correct this. It's not a big deal just a big pain in the arse being your so close to cranking the motor.

Your's 

Screenshot_20210608-190321_Samsung Internet.jpg

The correct way...

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P.s

It's very common that happens. Guys that just don't know do it all the time. My pride and joy 240 was bought for pennies from some Ford shop because it wouldn't  run. I got on this wonderful forum and bought tom monroe's book and figured it out. Now it's my casket.

20191006_183010.jpg

 

 

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Posted (edited)
  1. Hi siteunseen..  look at my lsat photo --  i am not sure if you noticed but i did a few photos of the shaft position.. some photos were ( what i thought was tdc ) then i spun the wheel with mark  around again then took another photo.. so the one you see may not be tdc - it may not be the compression stroke.  so i may just be offa tooth or two..  can the car still run?  can i just put the #1 spark plug to where the rotor is pointing to?? i think that how the last guys had it going. - maybe drive it home then fix it...
Edited by Shawninvancouver
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14 minutes ago, Shawninvancouver said:
  1. Hi siteunseen..  look at my lsat photo --  i am not sure if you noticed but i did a few photos of the shaft position.. some photos were ( what i thought was tdc ) then i spun the wheel with mark  around again then took another photo.. so the one you see may not be tdc - it may not be the compression stroke.  so i may just be offa tooth or two..  can the car still run?  can i just put the #1 spark plug to where the rotor is pointing to?? i think that how the last guys had it going. - maybe drive it home then fix it...

That last pic is better, small facing radiator. You need to definately confirm tdc compression. It's not that hard to do if you look back over the threads we've posted. First 2 cam lobes point north west and north east almost like rabbit ears. Get it to true tdc and if the small side of the spindle faces the radiator you should be able to reinstall the dizzy, advance it all the way clockwise and get it to crank.

Some of the smarter guys will correct me if I'm wrong. Love those guys!

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Was there a screw in this hole that held the distributor down?  Or was the distributor free-floating?  It's still unclear how the distributor was rotated so far away from where it should have been, as site/cliff/unseen noted in an earlier post.

You're making progress...

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Posted (edited)

yes - there was a screw holding the dizzy down.. i took it off - dizzzy was in good shape - all wires ok... not sure if oil pump was ever even taken off  - but when i got this beast it had spark plug wires on it that did not even reach #6 - all the wires to the coil were wrong ( not done as shown in fsm ) . so this car has been rigged up backwards...  

does it look like i need to drop oil pump or not - i hope not..

Edited by Shawninvancouver
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That distributor looks like a reman, or somebody did a really good job of cleaning it up.  It seems like the plate on the bottom of the distributor might be upside down.  If you install the distributor so that it looks like one of site's earlier pictures, that hole should be directly under the adjustment slot in the distributor plate.

Take a picture of the bottom of the distributor and post it.  After you confirm that piston #1 is on the compression stroke.

Don't worry about the wires.  Wires are easy.  Honest.  Get those mechanical parts right first.

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its a great thought that it was  in 180deg off.. but if i flipped the plate around all the original wires would never reach... its so weird.. here are more photo of it... and honestly.. i swear up and down  - there is no mark for  #1 on that cap.  i have gone over it for marks , lines, numbers etcc

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3 minutes ago, Shawninvancouver said:

but if i flipped the plate around all the original wires would never reach.

Wrong.

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The number 6 wire can be plugged onto the cap in any location.

You need to start by getting the motor to TDC on the compression stroke

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The way the cap is made it will only fit one way and snap down. If your's doesn't have the marker line no problem. The cap fits down 1 way. only. You can not fix this by moving the cap around, it will not snap into place.

You need to listen to what every bodies telling you. You came here for help, we're trying but you don't seem to understand that. No short cuts.

 

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A word of caution, most of us here are old and tired. We have dealt with these issues for years. We have asked you do certain things. If you will do those things we ask, in order and show the results, we will get this fixed. If that doesn't happen the help will dry up!

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Posted (edited)

ok I got ya all ... when i said if the mounting plate was flipped around and the "wires" would not reach. i meant the green power wires to he dizzy, not the spark plug cables. If any of you have seen a dizzy with the  square rubber plug that the wires slide through on the dizzy,  located towards the drivers side fender, show me,. of the few i have seen the rubber slot is near  the radiator, i will look for some photos to see what i can see...also, trust me i know the dizzy cap only goes on one way, i am crystal clear on that..  but i am also used to a marking for #1.. this cap has no such marking  what so ever, no line, no #1, no star no nothing...  I will take valve cover off tomrrow and find tdc.. when piston is up, are valves up or down for tdc??? thanks again guys and i hope to solve this soon.. but even if i get dizzy on right i may still not have spark due to pick up ot electronic unit....  grrrrr

 

also something i missed, is there another mounting plate on the bottom of the distributor?? also the plate mounted to the engine????  oh man -  i had no clue about that  - i thought you meant the plate mounted to engine was on wrong... geeesh  i will take a photo of bottom of dizzy....  🙂

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Edited by Shawninvancouver
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When the #1 piston, closest to the radiator, is at TDC the #1 cam shaft lobes will both be pointing upwards. Both valves will be closed.

Then take a picture of the drive spindle

Don't rotate the engine again until the mechanical parts are all properly installed.

Also take the #1 sparkplug out and make sure the piston is all the way at the top when the timing mark lines up at 0 degrees (TDC)

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Thanks guys. I will take valve cover off and try my best to get tdc.  When the cover is off is there also a mark near the cam chain or timing chain? If abs when those line up will the marks on the pulley wheel also line up where they are supposed to?

and once all lined up should I put the dizzy back on and  see where the rotor points to?? And that will be #1 spot??

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One step at a time.

Get the #1 piston all the way up and timing marks on 0. Camshaft lobes on #1 up. Then take a picture of the camshaft spindle with the dizzy removed

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