Stupid mistake of ignorance. Oil pump installation.

[Pericles757]

I an running a Z24i in an 86 D21 pick-up.  I installed a new oil pump and want aware that I had to align the timing marks. I tried to start the motor and it was back firing, Didint really have time to mess with it any further. Should I be able to just pull the pump and re align the shaft or have I seriously fucked something up? I'm not really a mechanic but I do atleast repair and maintain simple stuff. Just looking for a little insight from some more experienced folk like yourselves

[datzenmike]

No harm is done.

 

Set the engine to TDC on the compression stroke of the number one cylinder using the notch on the back of the largest crank pulley and the saw tooth timing scale near the alternator just behind it.

 

 

 

Remove the distributor by removing the two mounting bolts to the timing cover. This will keep your ignition timing intact. Fit the oil pump and drive spindle together and install so that when you look down on top of them the spindle is aligned like below....

 

 

Take note that there is a large and small half moon on the top of the spindle. Small side to the front. Install the distributor and you should be able to carry on like nothing has happened.

[banzai510(hainz)]

https://vimeo.com/19077890

 

 

just fast fwd to the oil pump install. This is for a L motor and timed at Top Dead center already

[Ratwagon1600]

No harm is done.

 

Set the engine to TDC on the compression stroke of the number one cylinder using the notch on the back of the largest crank pulley and the saw tooth timing scale near the alternator just behind it.

 

 

 

Remove the distributor by removing the two mounting bolts to the timing cover. This will keep your ignition timing intact. Fit the oil pump and drive spindle together and install so that when you look down on top of them the spindle is aligned like below....

 

 

Take note that there is a large and small half moon on the top of the spindle. Small side to the front. Install the distributor and you should be able to carry on like nothing has happened.

Couldnt find a rustier engine Mike?

[datzenmike]

It's sittin' in my driveway.

[Charlie69]

Welcome, Mike has you headed in the correct direction.  He is one of the best on here.  Can't say he is the best cause he will get a big head!  LOL

[DanielC]

Charlie, you live in Arizona.  Mike lives on Vancouver Island.  It tends to rain up here, and for a good part of the year, we cannot paint cars outside.

[datzenmike]

About 60 miles from me Henderson Lake gets 6,900mm about 271" or 22 feet of rain a year. One year 9,300mm fell about 30 feet! Glad I'm in a slight rain shadow with 173 rain days and almost 4 feet of wet..

[Pericles757]

Its very strange, i've set the shaft to that position and it still wont start (raised portion at 11:25). What's strange is that before I got the new pump, i put the old one back in and it started fine (with lacking oil pressure of course) I have not turned the crank without the shaft in place. is there a chance that it could have been placed off timing? Maybe a freak chance of the rotor button going bad at that very moment? This is the dual-plug motor BTW

I appreciate you guys help alot!

[datzenmike]

Set to TDC compression on #1. You can verify this by looking at the number one valves....they both should be closed.

 

Now confirm the 11:28 position of the spindle. Rotor should be pointing to front of vehicle or 9:00 o'clock as viewed from the drivers fender.

[Seven20]

Is it true I can use a 1990 and up D21 hardbody oil pump in my 1985 720 ? 2.4L 

[banzai510(hainz)]

I got this one for a L motor. this is a early KA type but make sure it fits your rig

https://www.amazon.com/dp/B00T3MGEHO?psc=1&ref=ppx_yo2ov_dt_b_product_details#customerReviews

[datzenmike]

All KA24E and DE oil pumps from the D21 Hardbody will fit all L and Z series engines. The oil pump from the '89-'90 S13 240sx will also work but not the KA24DE as they had an internal oil pump.

 

I highly recommend the KA oil pump on L and Z engines. You cannot tell from the outside only when off the engine. The KA rotors are 13% longer than the L and Z series oil pumps and move more oil per turn so pressure build faster and at lower RPMs. I had a well worn L20B that had a hot idle oil pressure of 17 PSI, changing only to the KA oil pump the hot idle pressure jumped to 29 PSI !!! Maximum pressures are the same at 55-65 PSI but they get there faster. If you have or plan a turbo it's a must have item but good even for no reason.