FWD waterpump + RWD pulley

[mikesim]

i know they're different, but this is the only option i have right now. i've decided to leave the clutch fan off and install an electrical one. will it hold?

the RWD pulley is on the original studs that came off the RWD pump, but the FWD waterpump shaft is significantly smaller than the RWD one. i noticed the pulley has some play on the studs and did my best to centre it and tighten it down like mad. will this minute play be the end of the only waterpump i could find in this city?

i'm too scared to drive it after reading other threads of waterpump pulleys flying off on the highway. but i don't know if other people had put the stock fan back on or put in an electric one.

[f s t caz]

i used the rwd pulley on the fwd pump and never had a problem.

[mikesim]

i used the rwd pulley on the fwd pump and never had a problem.

do you have the stock mechanical fan on? how long have you been driving like that?

[float_6969]

Why is the waterpump from a CA18ET not a possiblility? I've always looked at it this way;

!!!DO IT RIGHT THE FIRST TIME!!!

You know that there is a chance that running that combo will toast the pump and leave you stranded somewhere? So would you rather plan on not having a car till you get the right pump, or chance it and then possibly have to have your car towed or change a water pump in the parking lot....

Don't screw around with it. Get the right pump. It's as simple as that...

[dvd]

hrmm if the ca18et pump isnt a good option i think it should be taken down from all those FAQs but anyways. Where would one find a water pump for the ca18det then?

[f s t caz]

do you have the stock mechanical fan on? how long have you been driving like that?

No, the fan clutch was tossed in the garbage in favor of a twin e-fan setup from a early 90's maxima, so it's just the pully attached to the pump. And I drove it like that for over 3 months and several thousand miles

[biosehnsucht]

I'm using the CA18ET RWD pump. It works fine so far, pumps are "interchangable" as long as you use the right pullys for them. All RWD are fine w/ RWD pullys and FWD w/ FWD. Now granted, I'm using an OEM pump, aftermarket may be of lesser quality. I had to order mine and way for it to arrive..

FWD pump should be ok IF you don't use the stock fan, but instead use e-fans. You could also find a FWD pully at a junkyard and use it too..

[mikesim]

hrmm if the ca18et pump isnt a good option i think it should be taken down from all those FAQs but anyways. Where would one find a water pump for the ca18det then?

when i first got the problem, i looked in the NICO faqs for waterpumps, and it said the DE waterpumps were direct replacement. so i went out and bought a DE waterpump. the only one in 6 partsource locations in our city.

it wasn't till awhile after when i wanted to install it and looked on here for more info, searched some threads and came tripping across the FWD vs RWD pumps and pulleys. (see my old thread)

so now my FWD pump is in with a RWD pulley and electric fan. i'm fretting about it going on me because i was fed the wrong info in the first place. i could order the 200sx pump and redo it all over again, but i'd like to know what works for sure and what does not, rather than wasting more time.

[pulsar gtr]

NOt sure about the USA and the part numbers there,but here in Canada, when ever I order a water pump, I usually tell them it is for a Ca18Et, but I talked with the parts guy and according to his system, the water pump has the same part # for the Ca16de, ca18ET, ca18de. Also, on the box that comes with the pump, it also said Nissan ca16de, ca18ET, Ca18de, I have replaced about 5 of those pumps on different engines and never had a problem, on 3 of those engines, I kept the mechanical fan.

Not sure why there is so much confusion.

PULSAR GTRRafi

[pulsar gtr]

I will get a picture of the box, part # and the vendor and post it here.Also a picture of the original ca18det pump and a picture of the new one from a ca18et,ca16de,ca18de.

PULSAR GTRRafi

[NeedCAforS13]

hrmm if the ca18et pump isnt a good option i think it should be taken down from all those FAQs but anyways. Where would one find a water pump for the ca18det then?

Ryan was saying "why not use the ET pump"... as in that is the best option.

I used a DE pump with a DET pulley for awhile, and it didn't kill the pump but it shreaded up belts monthly because of the wobbling of the pulley. I'm running electric fans though. I recently got a DE pulley to use on my DE pump and have had NO problems since. I haven't ever used a ET pump, so I can't comment on its correct fit.

Sean

[biosehnsucht]

the pumps are interchangable except for the pully issue, so its possible for them to be built to spec for RWD and sold also for FWD, the 18ET nissan part is also listed for FWD, but is superceded by FWD specific parts.

[sdtouge]

i would do it right the first time as well, the ca18 is kinda a biatch to change the water pump, so just do it right the first time.

[mikesim]

i would do it right the first time as well, the ca18 is kinda a biatch to change the water pump, so just do it right the first time.

lol, yea, you're telling me.

i don't know if i'm confusing people here.

at partsource (canadian reman parts retailer for canadian tire), the CA18DE waterpump from the 1988 nissan pulsar nx is physically different than the stock CA18DET waterpump in my JDM 1989 nissan silvia. the four bolt plate on the shaft has a considerably larger in diameter spacer than the CA18DE one. so the waterpump pulley bolts up, but the center is floating.

like using wheels without hub-centric rings, i'm afraid that this would cause the waterpump to prematurely fail. but since i've been reassured it won't go without the mechanical fan attached to it, i've decided to drive the car around.

i could not source any waterpumps for 200sx's or pulsar nx's thru the dealer locally, as well as the 200sx CA18ET waterpump is not available locally thru the partsources or the other parts stores like napa and piston ring.

[c-rad]

Advance Auto Parts sells the CA18ET water pump for $32.96 with a lifetime replacement warranty. Shows it as a replacement for Nissan Part# 21010-V5528 .... This is getting confusing now.

[sdtouge]

tell them you have a 1985 200sx

thats what i did, then tell them you have the 1.8 liter, and use your stock pulley. mine bolted up fine.

[float_6969]

hrmm if the ca18et pump isnt a good option i think it should be taken down from all those FAQs but anyways. Where would one find a water pump for the ca18det then?

The CA18ET IS the right pump...

[float_6969]

I am using a CA18ET pump with my stock RWD CA18DET pully and have no problems whatsoever. It was completely straightforward. It also had a better impeller design. The FWD CA18DE was a cast impeller, whereas the RWD CA18ET was stamped 1/4" stainless steel.

[pulsar gtr]

Here are some pictures of both water pumps, the CA18det and the CA16de/ca18de/ca18et

The water pump that I use is sold altrom part # ALT*152 9195On the box itself it mentioned that it is for CA16de/ca18de/ca18et

First picture is the CA16de/ca18de/ca18et altrom part # ALT*152 9195Second picture is a used CA18DETThird picture shows both the Ca16/ca18, and ca18et Compared to the Ca18det, it clearly shows that both shafts have the same thickness.

Pic#1 (CA16de/ca18de/ca18et altrom part # ALT*152 9195)



Pic# 2 (used CA18DET)

Pic # 3 (Ca16/ca18, and ca18et Compared to the Ca18det)

PULSAR GTRRafi

[NeedCAforS13]

ooh my turn! my turn!

FWD CA18DE water pump (OEM nissan):

used RWD CA18DET water pump (came on my motor):

RWD pulley on RWD CA18DET (used) pump: notice NO gap around the neck of the pulley...

RWD pulley on FWD CA18DE (new) pump: notice the 1/8 inch gap around the outside edge... causes wobbling pulley = eats belts!





Sean

[float_6969]

And I've done the same comparison that Sean has and had the same outcome. Maybe it's different in the states? I never actually went ahead and ran the RWD pully on the FWD pump, but I could plainly see the difference.

[mikesim]

yea, sean, that's the problem i'm talking about. there's a gap there from the pulley to the pump centre.

so this will eat belts? damnit. looks like i'm going to order in that OEM pulley from the dealer.

[pulsar gtr]

Hi Mikesim,

If you want a FWD water pump pulley man, let me know, I got few, you can have, just pay for shipping.

Or go to any parts store and order this number altrom part # ALT*152 9195, you will get a water pump that will work on your RWD pulley and you won't have any gap in the pulley

PULSAR GTRRafi

[mikesim]

hey, thanks man, if you can send me a pulley that would be great! email me [email protected] and we'll swap info and i'll send cash your way.

[pulsar gtr]

email sent,

Just pay for the shipping, I don't want any money for the pulley.email me your address.

Thanks,PULSAR GTRRafi