Crashtd420 Posted January 17, 2017 Author Report Share Posted January 17, 2017 So this doesnt seem like the way those two gears are suppose to work... and this sucks can't find the old gear for a trial Looks like it's still available through the dealer.... 1 Quote Link to comment
Crashtd420 Posted January 17, 2017 Author Report Share Posted January 17, 2017 Well just confirmed my suspicion at the Nissan dealer... found a racing guy who new about the L series motors.. had an old 280z race car in the show room... his belief is the pitch on the gear was cut slightly wrong.... well I ordered an oem gear and am about take the motor apart to find out if I am right.... 2 Quote Link to comment
Stoffregen Motorsports Posted January 17, 2017 Report Share Posted January 17, 2017 Can you snap a pic of the parts you have? Is that pic above a pic of your engine, or of someone else' engine? If it's yours, it looks like the proper drive gear on the crank. But it's hard to see for sure. The newer gears were coates with a white/silver coating. If you clean that one off, is it white? Or yellow? 1 Quote Link to comment
banzai510(hainz) Posted January 17, 2017 Report Share Posted January 17, 2017 I seen cam sprockets that have bigger dowel holes where there is a little slop but that it. Lower gears are usually fine. Don't get what your trying to say? the lower gear usually don't wear much. You see my vid on YOUTUBE; Hainz L series Datsun. 1 Quote Link to comment
Crashtd420 Posted January 17, 2017 Author Report Share Posted January 17, 2017 No that's mine from a few months ago when I was assembling the motor.. not sure about the coloring but at this point I am about 99 percent sure the pitch was cut slightly wrong on the gear i have on the crank... it shouldn't be drawing that shaft up ... even just inserting only the shaft I am met with weird resistance. 1 Quote Link to comment
Crashtd420 Posted January 17, 2017 Author Report Share Posted January 17, 2017 Hey hainz.. I am not talking about the gears on the cam chain.. this is the brass worm gear that drives the dizzy shaft for the distributor and oil pump... 1 Quote Link to comment
Crashtd420 Posted January 17, 2017 Author Report Share Posted January 17, 2017 Hey hainz I just put two and two together haha... I've seen your videos before searching other stuff... 1 Quote Link to comment
Crashtd420 Posted January 17, 2017 Author Report Share Posted January 17, 2017 So these distributor shafts if everything is correct should smoothly slide in right.... I really hope i am right because I am about to drain the engine and pull my timing cover.... if I am wrong this will really suck... 1 Quote Link to comment
Stoffregen Motorsports Posted January 17, 2017 Report Share Posted January 17, 2017 Yes, it should be a very smooth engagement. If it's pulling the spindle up, something is wrong...drastically wrong. Again...pics of your parts. Once you get it apart, take a bunch of pics of the pieces and the inside of the cover. I could probably identify the problem easily with a couple pics. 1 Quote Link to comment
Stoffregen Motorsports Posted January 17, 2017 Report Share Posted January 17, 2017 Make sure the dowel pins that locate the front cover are in the block too. Can't see why they'd be missing, but who knows? 1 Quote Link to comment
Crashtd420 Posted January 17, 2017 Author Report Share Posted January 17, 2017 Yup draining fluids now.. 1 Quote Link to comment
Crashtd420 Posted January 17, 2017 Author Report Share Posted January 17, 2017 Well nothing jumps out.... this is the timing cover with shaft and pump It.... aligned up nice.. 1 Quote Link to comment
Crashtd420 Posted January 17, 2017 Author Report Share Posted January 17, 2017 This was the gear 2 Quote Link to comment
Crashtd420 Posted January 17, 2017 Author Report Share Posted January 17, 2017 Now my sad engine bay... 2 Quote Link to comment
Stoffregen Motorsports Posted January 17, 2017 Report Share Posted January 17, 2017 That sure looks like a brass drive gear, but the diameter looks like the small one. Nissan Motorsports did sell a brass drive in the later model diameter, so that's a possibly a red herring. Do you have a pic of the pump assembled to the cover? With the drive spindle installed? 1 Quote Link to comment
Crashtd420 Posted January 17, 2017 Author Report Share Posted January 17, 2017 Well technically that first one is... Here's a different view.... 1 Quote Link to comment
Crashtd420 Posted January 17, 2017 Author Report Share Posted January 17, 2017 And when you say with the drive spindle installed how do you mean?.... just sitting in the cover next to the distributor shaft gear? 1 Quote Link to comment
Crashtd420 Posted January 17, 2017 Author Report Share Posted January 17, 2017 Is that what you wanna see?.... I stacked it up on the crank pully... even like that it felt weird trying to rotate the assembly.. but without anything to compare it to I am kind of stuck waiting for new parts... 1 Quote Link to comment
Stoffregen Motorsports Posted January 18, 2017 Report Share Posted January 18, 2017 Are you talking about the gap between the spindle and the oil pump on the INSIDE of the cover? I thought you were saying that the oil pump wouldn't fully seat against the front cover. If that's what you're referring to, the end play in the spindle, between the cover and the oil pump, you can shim that. I don't remember the application, but there's a shim for a Dodge or Ford V8 that fits the Datsun, and it's used just for that purpose. So to be clear, the oil pump is fully seating against the mating surface on the bottom of the front cover? 1 Quote Link to comment
Crashtd420 Posted January 18, 2017 Author Report Share Posted January 18, 2017 Off the motor yes.. in that picture oil pump and shaft fit perfectly that not the gap i was talking about.. When I was installing the spindle shaft the crank gear was there in the way so it wouldn't allow the pump to go up all the way... 1 Quote Link to comment
Stoffregen Motorsports Posted January 18, 2017 Report Share Posted January 18, 2017 Hmmm. I guess when you get that new gear, you'll find out if it works. I don't see a smoking gun anywhere. 1 Quote Link to comment
Crashtd420 Posted January 18, 2017 Author Report Share Posted January 18, 2017 Really hope its the problem.. thats why I went to the dealer for it instead of ebay... 1 Quote Link to comment
Crashtd420 Posted January 18, 2017 Author Report Share Posted January 18, 2017 So here's a question the book states larger chamfer on gear faces the timing gear. And that this is critical.. why?.. and yes I verified mine was on correct, but what if it wasn't... say whomever made the gear put the chamfer on the wrong side .. what would happen? Just wondering if anyone knew .... At work thinking about my problem waiting for my new gear to compare things. 1 Quote Link to comment
DanielC Posted January 18, 2017 Report Share Posted January 18, 2017 The L-16 engine has two different oil pump drive spindle, crankshaft gear sets. You cannot use the crankshaft gear from one set, and the driven spindle from another set. 1 Quote Link to comment
Crashtd420 Posted January 18, 2017 Author Report Share Posted January 18, 2017 Ahhh and there's an answer.... so how do I know what I have? Whats the difference? I believe Everything was original to the motor and truck I hope the distributor shaft is. I ordered a crank gear for my year l16.. oem right from the dealership. Am I on the right track to fixing this or will the distributor shaft be a problem too.... 1 Quote Link to comment
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