L 24 engine

[Carl Beck]

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.

Oops.. sorry Alan - you said the first one was for the L24/L26... same part number as the Datsun Competition Parts Catalogs list.. I guess when you said that the second one was the larger one standard on the "432-R", my mind went back to thinking of the first one being standard for the 432. My mistake.

I've edited my Post at #83 to correct and avoid farther confusion.

Any explaination for the use of the cartridge type filter set-up?

FWIW,

Carl B.

[HS30-H]

Any explaination for the use of the cartridge type filter set-up?

Carl,

I'm not sure it really needs any "explanation" in the sense of it being either 'right' or 'wrong'.......?

We have to be mindful that the S20 was - in all but name - essentially the child of Shinichiro Sakurai and his ex-Prince team, operating like a separate Principality within the Nissan fold. They were still doing things their way ( they still are to some extent ), and in some ways it is no surprise that Prince were well on their way to the wall when they were married-off to Nissan. You can't fault their single-mindedness.

Close inspection of an S20 engine ( externally and internally ) brings home just how much time, effort and money went into each one. Just off the top of my head, I'd estimate that a single S20 engine probably cost Nissan something like five or six times the cost of ( for example ) an L20A or L24 to manufacture. They are an absolute joy to work on, and the way they come apart and go back together is a treat. No real 'throwaway' parts, and everything designed to be rebuildable. Even the oil pump impellers run on roller bearings. No wonder that they probably lost money on every one of them they made........

As for the 'cartridge' type oil filter - who knows? Its not like it doesn't work efficiently or effectively. The pressure-relief valve is integral to the body of the filter housing casting, so that may have had something to do with it. Adapters for 'spin-on' type filters have been available for many years now - so conversion, with all the benefits of the 'spin-on' type, is possible and simple.

Alan T.

[g72s20]

...and a bit later. A few oil cooler related shots. The parts book page is from the racing tune-up section of the 1966 Prince Skyline GT-B parts catalogue. A good indication of the older cartridge type filter used on the G7 2litre OHC six. This particular one is for use with oil cooler equipped cars but is very similar to the standard (no cooler)equipped cars. Sorry I don't have any pics handy of the Prince oil cooler.

The other pics are of the only oil cooler,(shiney thing behind the grille) I have seen fitted to a factory production KPGC10 looks just like the one for the 432R? Alan, do you know if this was a production option for all the S20 powered cars? Or is this an owner add-on? The rest of the car (KPGC10-000013) looks like a museum piece, stock steel rims running Bridgestone Skyway 6.45H-14 crossply tyres!

Looks like the benefits of lower engine oil temperatures, along with the bonus of greater oil capacity was not lost on the Prince or Nissan engineers.

Jim. :classic:

[HS30-H]

The other pics are of the only oil cooler,(shiney thing behind the grille) I have seen fitted to a factory production KPGC10 looks just like the one for the 432R? Alan, do you know if this was a production option for all the S20 powered cars? Or is this an owner add-on? The rest of the car (KPGC10-000013) looks like a museum piece, stock steel rims running Bridgestone Skyway 6.45H-14 crossply tyres!

Hi Jim,

Good to see you on this thread again.

I know that car, and have seen it in Japan. It belongs to a friend of a friend. It is absolutely wonderful. A real credit to its owner.

Yes - the oil cooler on that car was an 'option' part for the PGC10 and KPGC10 that was available to order at time of purchase. It was also available from the Sports Option lists for those models. Big coolers, aren't they?

Jim, as a Prince connoisseur I know you can vouch for the high standard of engineering in the Prince product, and will agree that this high standard was carried over into the S20 engine when Sakurai sensei and his team were transplanted into the Nissan fold.

Cheers,

Alan T.

[Zedrally]

I found this version of the oil cooler, thought it might be appropriate to the thread.

Mike