On the partsbin website - trying to figure out which dayco timing belt is correct for the VG30E 1993, so I can order in advance. I'm really confused about this part:

"for sprockets w/ Deep- profile round teeth Nissan changed the tooth design for timing belts on VG30E engines from one with a shallow tooth depth to one with a deeper profile. The change occurred during the 7/93 production month. Though our catalog is accurate per information provided by Nissan, some customers have reported receiving the wrong belt for vehicles on either side of the 7/93 production month. If possible, we recommend that the type of belt on the engine be confirmed before ordering.."

DAYCO PART#
DY95249 Round Tooth
DY95104 Square Tooth

Is the only way to confirm, by taking the old one out and inspecting?

 

basically roudies are on the 94. except i had a 94 motor in my 90, therefore i had roundies too, and transferred them to the Goon motor cuz round = moar better.

Look at your sticker on your door jamb. It will tell you the production date (m/yy) of your car. Go by that. Or take your top cover off if you want. But you PROBABLY have square teeth.

 

most likely you have the square tooth belt and sprockets. do what CapedCadaver said, get your model production date and VIN # and go to the dealer and just get it from them. i would rather get timing components from Dealer and not from local auto parts.

 

but if he suspects that his engine may have been replaced before, the real sure-fire way is to just look. I bought a square belt and took it to the shop that was doing my belt, and turns out i had a round one, because my motor was from a 94, not a 90. At the auto parts store they said "we don't have a round-tooth belt for a 90 Maxima." so we assumed them stupid and went to another store and eventually got what we were looking for. If I'd said 94, we would have been fine from the get-go. But I didn't know my motor was a 94 motor until just recently.... knowledge=power i guess haha. I'm going to have another set of round sprockets if anyone would like to convert.

 

im pretty sure he has round tooth i have the 93 gxe id have to double check but i think round tooth was the 92-94 VG's

 

OP said that it was a switch made in 7/93... so that would be for the 94 model year. Your engine probably isn't original if you had round teeth. Or someone swapped the sprockets.

 

i understand but im just telling him to get the parts from the Dealer instead of a local auto parts store. i don't like taking chances. thats just how i roll.

 

from my understanding the round tooth came on the late model '93's going into '94 GXE. i have the early model '93 therefore i still have the square tooth sprockets.

 

but isnt it possible they kept producing the 93 during the year 1993 just because they introduced the future model doesn't mean they stopped building the previous model isnt that the reason why car manufacturers release a 2009 in 2008 its not like they shutdown factories in between release dates

my car had some mods on it but nothing close to a timing belt sprocket swap...

 

over a generation, i am sure there is some overlap. But I wouldn't think there's any overlap between 2 years within the same generation. Probably some very late 93's were built in 1993 but by fall they usually are making the next year's model. Your year is listed in your VIN... If the model-year production year ends in, say, September, I'm thinking that there would be no VIN-indicated 93s produced in october of any VIN-indicated 94s were produced in September... you know what i mean?

But at any rate, if you're in doubt, take off the top cover, and then go to Nissan and say you have a 92 for square and a 94 for round... since there is a little bit of ambiguity in 93. Kindof like how VE guys usually say they have a 93 cuz some 4th gens were made in 94.

 

usually they release cars towards the end of the year but as the following year model. my 3rd gen was built on 3/93 so its still an early model '93 but if it was built towards the end of the '92 then it will still fall into a '93 model same goes for the '94 3rd gens. towards the end of '94 is when they started producing the 4th gen as a '95 model. all car manufacturers work the same way. but like Caped said just take off the top cover and look at what you have either square or round simple as that.

 

Ho Ho Ho biatches......I'll do what you guys said, and daver i'm going to pull the cover off and look at it to be 100%. Grand - the dealerships here are scams - most parts are a rip off that I can get cheaper at partsbin dot com, and alot of the people i've dealt with in the service department at this particular branch, couldn't even figure out what plenum bolts I needed way back when.

Dayco brand belts will suffice - just need the right one.

 

Checked the side of the door - it says 8/92

 

get all of this plus $8.95ish shipping and be happy.
http://www.courtesyparts.com/kb_sear....php?keywords=[13028M]+\(j30&cPath=1610_1611_1612_1621
http://www.courtesyparts.com/0821662...4-p-42354.html
http://www.courtesyparts.com/kb_sear....php?keywords=[13070H]+\(j30&cPath=1610_1611_1612_1621
http://www.courtesyparts.com/13070m-...4-p-42260.html
http://www.courtesyparts.com/13085d-...4-p-42270.html
http://www.courtesyparts.com/0934000...4-p-42358.html
http://www.courtesyparts.com/0891124...4-p-42356.html

so you have just about one of the first 93s. right when they started putting the VE-style (diff connector) injectors in the VGs. My 90 was built in 5/90 so it's not too far from a 91..

 

Actually - while you at it daver can you tell me what dot color then my pink injectors would be - instead of removing the 'lid' to check...just in case I need to order 1 quick. Thanks for the items list by the way.

 

uh... I dunno what dot color they are. It's either green or yellow but you'll have to look yourself. I have a few working spares but I forgot which dot they have. The new ones are $120 each from Courtesy tho.

 

I'm working on changing my timing belt now. I took the belt out and took it to advance auto. It matches the teeth for the square one. I got the Dayco belt they had and the teeth match but the belt is not as wide and does not have the timing marks on it. I called Courtesy because it's doesn't look like it is really that much more $$ to just get a nissan part. Courtesy said they don't have a square tooth belt for a 93. Any ideas? Do I need to get the one for a 92?

 

people usually recommend nissan OEM parts for the timing system. the marks on the belt don't *actually* matter as long as the other marks (back plate/oilpump and belt sprockets) line up. but the marks on the belt are just handy to have. but once you have set the belt and turn the engine over by hand, the marks on the belt are useless (cuz the belt doesn't make a full revolution each time the engine does.. it has 133 teeth and the crank pulley has 20 or 30 or something)

anyhow, just get a 89-92 belt if you want to do it that way. year-matching (93) your car doesn't matter as much as production-date-range (late 88 to sometime in early 93, for the timing belt) matching. i have parts from every year of 3G on my car by now, even some parts from the VE, even some 4th gen parts. you just gotta know what interchanges.

 

Wats up guys? I have a 93 GXE SOHC VG30E. I have about 210,000 miles on the car. I suspect that my timing belt tensioner is making a weird noise once the car warms up. when i bought the car, it had around 170,000 miles on it, and I noticed it. I havent changed the belt yet, because It seems like a professional job, I guess. But I do everything else to it, like regular maintanence, and I do have a manual. I would like to keep the car as long as possible, because it has been very reliable, and just dont want to mess anything up, if its not nessessary to fix it. Also the main seal near the crankshaft is leaking. Any suggestions would be appreciated.

 

replace it. timing belt is considered routine maintenance, but can be a little intimidating. it's not too incredibly bad, you just have to take your time, and go in with the mindset that you can do it. but if you feel like it's too intense for you, you may wanna find a good mechanic to take care of it for you (I/we don't recommend that, often...)

 

Thanks CapedCadaver, I found another website were I could specify 92' and the belt just arrived. Looks exactly like the OEM belt that was on there and has the marks. I just want to make sure I get it installed right the first time. I did the water pump and thermostat last night, then was having trouble getting the cam sprockets off to change the seals. I have those marks (on the sprockets) lined up and everything and don't want it to move much. I have an impact wrench kit that came with this smaller 3/8 wrench. I'm hoping that will do the trick. If not, any ideas? The 1/2" impact wrench that I used for the bolt on the crank will never fit in there to use on the cam sprocket bolts.

To maxinout93. this is my first time doing this and would agree with BenStoked and just say that you need to take your time. My 93 only has 140k on it now. When I first got it it had 70k on it. I took everything apart because I was not sure the timing belt had been replaced. Too bad I missed that shiny silver sticker on the timing belt cover that told me that it was. Everything looked good so I just put it all back together.

 

the 3 methods i've used were to put a deep socket on one of the bolts through the sprocket (on the backplate) to jam the sprocket to keep it still, then loosen the nut on it, or, to have loosen the lockbolts with the old belt still in place..