More engine rebuild questions...

[sewebster]

Working on rebuilding my 91 V6 engine and am wondering about a few more things...

 

How do I inspect the engine mounts? They are expensive enough that I'd rather not replace them if I don't have to. Any tips?

 

Any ideas on installing a real oil pressure gauge (rather than just the light). After I spend all this time doing the engine it seems wise to keep an eye on what the oil is doing. I figure I install a tee and then both the standard switch and a second electronic pressure sender that I wire to a gauge. Anyone know the sender thread?

 

Thanks!

[Tungsten]

You know what you should do? See if you can change all the sprockets from square to round ones so that you may get longer timing belt change intervals.

[sewebster]

You know what you should do? See if you can change all the sprockets from square to round ones so that you may get longer timing belt change intervals.

 

You mean the shape of the teeth on the sprockets? Interesting.

[Cuong Nguyen]

I'm switching to the round tooth sprockets on my rebuild. What you can do is remove the stock oil pressure sensor (it's above the oil filter) and use an aftermarket one in that place.

[Precise1]

Yup, if you are keeping the truck (which building an engine for indicates), this is a good upgrade. Timing belt replacement every 105k miles instead of 60k is significant.

 

B

[Tungsten]

Yes it is, I have a 91 but my timing belt intervals are nice and long with the round sprockets. I never had a timing belt failure and my last timing belt lasted a good 120k miles and still looked like it would keep going when I got it replaced with a new one from Nissan.

[sewebster]

What's your source for round toothed sprockets?

 

But I don't drive too much, so really it's probably gonna be another 10 years until I need another timing belt... hmm.

[Cuong Nguyen]

You can use the cam sprockets from a 94-02 Nissan VG30 or VG33 motor.

The crankshaft timing sprocket will need to be off a 94-95 VG30 motor as in 96, the VG33 crank snout diameter is larger.

[nunya]

dammit more things to possibly aquire if thats all thats involved is a coupel pully swaps... I'll search in a bit.

 

 

 

and as for the mounts, they're like $40 and change(USD) each on Rockauto.com, prices proably vary at your local stores (try beaten em up with the "they're this much at this place" line, can save a couple bucks)

[sewebster]

If you want adjustable cam sprockets I found some here:

http://www.z31parts.com/engineparts.html

and they come in red or blue! A little pricy for my taste though.

[Tungsten]

you may fail smog checks with those

just get some from the later VG30E

[sewebster]

So anyone know the thread on the oil pressure sender? I think a lot of cars are 1/8" NPT, but seems unlikely for this. The page I linked above with the cam sprockets sells an adapter, but can you buy electric senders for aftermarket gauges that have the right thread? I guess this would mean my oil light would be on all the time and I'd just ignore that and look at the gauge...

[ahardb0dy]

you can thread a nipple into the location for the stock oil pressure sender, than a "tee" so you can keep the factory dummy light but still have the aftermarket oil pressure gauge, according to Summit racing the thread is - Sending Unit Thread Size M10 x 0.9

[sewebster]

you can thread a nipple into the location for the stock oil pressure sender, than a "tee" so you can keep the factory dummy light but still have the aftermarket oil pressure gauge, according to Summit racing the thread is - Sending Unit Thread Size M10 x 0.9

 

Thanks. I was doing some more searching around, and it seems that the thread might be 1/8" BSPT, which is pretty much M10x0.9. The problem is that if I put an adapter and then say a 1/8" NPT tee, then I can't thread the factory dummy light on, because it isn't 1/8 NPT. So I need some kind of reverse adapter again... lame. Hmm.