L 24 engine

[HS30-H]

Actually Alan, I don't think you were getting "laid" in this thread. I think the proper American idiom is, "Getting bent over." :-)

Well John, you'll have to explain "getting bent over" to me, and how it applies to what was happening on this thread. I'm afraid the only English I speak and write is English English, and anything other than that takes a little extra thought for me ( as a native Englishman ). I do however know the difference between "getting laid" and "getting laid into"........

To bring the thread back to the original subject of oil coolers, here's a pic of a Nissan factory oil cooler attached to a genuine Works rally car. I think the cooler itself and the L-shaped brackets that were used to attach it to the radiator support crossmember are the same as those supplied in the Factory dealer option and Sports Option kits, and in the Datsun Competition-supplied kits in the USA.

[sakijo]

I am starting a new thread in the general discussion for the weird names. Should be interesting.

[26th-Z]

What do you think about this base, Alan? The casting mark looks Hitachi. Installed upside down?

Everyone go have a look at your lower radiator cross member and see if it is pre-drilled for the brackets. My cars are.

[HS30-H]

Everyone go have a look at your lower radiator cross member and see if it is pre-drilled for the brackets. My cars are.

My cars ( '70 Fairlady Z-L and '72 Fairlady 240ZG ) both are too.

What do you think about this base, Alan? The casting mark looks Hitachi. Installed upside down?

"Upside down" might be a moot point. I don't think I've ever seen one in real life that was installed with the orientation suggested in the factory parts manuals. Having the filter on top surely makes it a LOT easier to change it ( especially in a Works rally car ) and I don't see any problem rotating the base a certain amount? The hoses can be pointed in any direction before snugging them down too.

Here's a few pics for extra reference. Two cars are involved - both Works 240Z rally cars, one RHD and one LHD. One 71 RAC spec and one 72 Monte Carlo spec. Notice the differences in hose connections:

[HS30-H]

And for comparison, the large 'stand up' oil cooler that was standard equipment on the 432R, and an optional part on the 432:

[Zedrally]

Alan, is this a wet sump or dry sump setup?

MOM

[HS30-H]

Wet sump, Mike.

[beandip]

Hey beandip, thanks for the name change. Hope you didn't fry too many brain cells coming up with that.

In the meantime, if you can't see who really had the agenda/axe to grind in all this I'm afraid I can't help you.

HAY M O O N I don't need your help for anything ! You just need to give it a rest . It is obvious you had a hardon for Alan T from the start. I think If he just said hellow , you would have had something to jump on him for. same for your # 1 fan01 . Why don't we all just treat this web site like we are all friends and check the big EGOs at the door . Go back to post #1 and reread all that has been said. We just need to chill , this is stupid.

[kenz240z]

The crossmember in my '73 looks like it is pre-drilled for the brackets. There is a hole to the outside of these, any thoughts on what they might be for?

It also looks like there are mounting holes for the stand up oil cooler on the top edge of the crossmember.

[ZSaint]

This is the area on my '71 where the horns mount. Can't help you!

I want to buy a cooler but do not want to put it in front of the rad. I cut a hole in the front beside the rad and mounted my coolers when racing, years ago. I do not want to "cut up" my '71. Does anyone have a pic of the Turbo cooler mount? I have searched but cannot find. I know it fits in the wheel well but I would like to see how it is mounted.

[Carl Beck]

Given the different orientations of the oil filters shown on various oil cooler set-up's, I think the subject deserves some farther discussion.

For the purposes of this discussion - let's refer to the "Top" of the oil filer as being the area where the oil flows in/out, and "up" will refer to the Top of the filter pointing up toward the sky, whereas "down" will refer to the Top of the filer pointing toward the ground.

First - the picture of the 432-R system that Alan presents shows the filter can pointed up (if you will) and secondarily it looks like an "element" or "cartridge" type - rather than the more usual "spin-on" type. (more typical of the early 60's than the later 60's early 70's - but could be because far higher oil pressures were anticipated???)

The picture that Alan presents of the Factory literature, for the L24/L26 also shows the top of the spin-on filter pointed up.

The pictures of the filters in the rally cars show the filters mounted top-side down (so to speak)... that is to say with the inlet/outlet on the bottom, pointed toward the ground.

Most all factory installations orient the filter horizontally or up, so that it remains at least partially or completely full of oil - because that is the source from which the cam and main bearings are first supplied upon start-up.

A lot of the spin-on type full flow filters are also equipped with an anti-drain back valve to prevent them from emptying while the engine is shut off, and thus allowing "dry starts" where oil to the cam and main bearings is delayed while the pump refills the filter. However in most test cases, these anti-drain back valves are not completely dependable. This is one reason to use Nissan OEM filters.. they are higher quality than most common and far less expensive, after-market types.

Dry-starts may not matter as much on a race engine, given it's short life expectancy (ie. a race or two), and/or it's infrequent number of starts, before complete overhauls... However on a car driven on the street, where lots and lots of starts, restarts are the norm, over a period of years - the most prudent path would be to mount your spin-on filter with the top of the filter pointing up, so that the filter remains full of oil at all times, and prevents drain-back through the pump when the engine is shut off.

Likewise if your using one of the after-market remote mounts for the filter or filters. these have the added advantage of allowing the filters to be mounted pointing up - while at the same time making it easy to access them for change.

FWIW,

Carl B.

Clearwater, FL USA

http://ZHome.com

[HS30-H]

First - the picture of the 432 system that Alan presents shows the filter pointed up (if you will) and secondarily it looks like an "element" or "cartridge" type - rather than the more usual "spin-on" type. (more typical of the early 60's than the later 60's early 70's - but could be because far higher oil pressures were anticipated???)

The second picture that Alan presents of the Factory literature, ie the larger 432-R oil cooler uses the same element/cartridge type filter - also with the top pointed up.

Carl,

I have only posted only one image representing parts intended to be used on the S20 engine of the Fairlady Z-432 and Fairlady Z-432R on this thread ( in post #77 ), but you are referring to two.........?

Where's the other one?

Alan T.