Sgtblue

iTrader: (16)

Searched but could not find any pictures of one installed in the car. Appreciate anyone's help.

Smitter

airpump elimination pulley??? wtf
take the air pump off and get a shorter belt

Tom93R1

iTrader: (2)

I would guess its a somewhat larger water pump pulley like the Greddy because the stock pulley is prone to slipping with the air pump eliminated. Almost everybody has the Greddy, should be easy to find pics of that.

I searched the pineapple site and cannot find a pulley, are you sure it isnt just the Greddy?

Sgtblue

iTrader: (16)

Tom,
Pineapple made/makes a replacement idler pulley to take the place of the airpump pulley when it's removed during emissions delete. It maintains full belt contact with the stock waterpump pulley, eliminating slippage without having to oversize. If I have to, I'll get an oversized greddy or rx7store WP pulley, but given that my car doesn't see extended high RPMs (just autoX) and is mostly street driven, I would prefer not to.

Smitter...thanks for nothing cupcake. You don't have many friends...do you.

4CN A1R

iTrader: (6)

jim,
its not the best angle but i believe this is what you are looking for...its called the yoohoo belt. you are right, the greddy belt for airpump elimination is not the best thing to get for street driven cars. most people do not know this, or frankly care. this yoohoo belt is just a 3L220 belt. Which is 3/8 thick, and 22.0 inches long

4CN A1R

iTrader: (6)

[QUOTE=Sgtblue;7678040]Tom,
Pineapple made/makes a replacement idler pulley to take the place of the airpump pulley when it's removed during emissions delete. It maintains full belt contact with the stock waterpump pulley, eliminating slippage without having to oversize. [QUOTE]

i was reading somewhere that they did not engineer the belt themselves...a guy from pineapple racing took a belt from a table saw and experimented with it. happened to maintain much better tension, and only cost around 20$. so they made the same size pully and slaped there name on it. i havnt found there price for it yet though. so if its true the pineapple pully can be had for 20$ from a hardware store

tiger18

iTrader: (1)

Hi mate i remember that pulley set up,,,heres the link but the pictures are no longer hosted,,,try contacting the host member he migt still have them.
https://www.rx7club.com/forum/showthread.php?t=411980

afgmoto1978

iTrader: (6)

Here you go.

jkstill

iTrader: (11)

Before replying did you ask yourself "Why might someone have gone to the trouble to design and build this part?"

Sgtblue

iTrader: (16)

4CNAIR, thanks for the response, but for some reason your picture didn't come up, I saw that Yoohoo belt on Pineapple's site. It was hard (for me anyway) to make out exactly what they're talking about for sure, but that sounded more like something for FCs.
I emailed Rob at Pineapple, and given the circumstances, he responded pretty quick to tell me that he hopes to have the machinist make up a few of the idler pulleys kits, hopefully next month. I'm keeping my fingers crossed.

CantGoStraight

Some people want a little more surface contact area on the belt than what you have by just putting a shorter belt on a stock water pump pulley, while the under drive pulley helps it's marginal at best.

CantGoStraight

My version:

Smitter

what did i say to offend u sgt blue.
i simply asked wtf.........like what the **** is that?
let me rephase it for all the church goers on the forum...


"I have never seen this item u speak of. do tell me more about it.
i thought a gentlemen like yourself would maybe consider removing the airpump and fetching a shorter belt"



is that better reverend?
ease up a little muffin & praise the lord

hsitko

iTrader: (1)

The pineapple air pump pulley was a great idea that didnt get proper coverage here on the forum. The greddy, rx7 store, gotham, and ebay pulley kits arent really that great in my opinion. The reason is firstly they are race inspired parts that under drive your water pump and alternator. This is fine if your car sees 8k all day long because it wont wear those parts out as fast. However for street cars, your alternator at idle isnt charging at full capacity, and your waterpump isnt spinning as fast. Both are questionable to me. Then there is the issue of how there is almost the smallest amount of belt contact possible on your waterpump with those kits. That is a bad thing for high rpms. With cars that have those kits on them you can just about turn the water pump by hand with the belt tight. The pulley that is on the waterpump on those kits also has ridges on it that wear your belts out faster. Another bad thing. Rob at pineapple no longer produces those pulley kits as of the last time i asked him about it. He said he had a hard time selling them because of the greddy pulley kits and such. Perhaps we should start an interest in them to get him to do another run. I would be interested in one. I have a gotham pulley kit and dont want to run it on my new rebuild as i was unimpressed due to the reasons stated above. Oh and for those who say to just tighten the belt more. It makes water pumps wear out super fast.

--Hank

AHarada

iTrader: (25)

These are cool, I've never seen this before. And great work to the guys who made their own.

I need one of these, I can hear my belt squealing at first startup so I know it's slipping. I like that it uses the ugly hole left when you take out the airpump too.

CantGoStraight

I didn't pay much attention when I uploaded those pictures, but that was the setup configuration, and i have since braced it on both sides and will post a completed picture later. I had a bracket scrapped from a piece of equipment at work that I used to fabricate the one you see.

Sgtblue

iTrader: (16)

That's still way better than I could do.

Smitter

i have the oversized water pump pulley w/air pump eliminated and have never had any overheating issues what so ever. temps never climb above 95C

cozmo kraemer

I have the Pineapple Pulley kit, I picked it up used off the forums. It is a very very nice piece. I talked to someone at Pineapple and they said the price of the kit was more to do with the bearing in the pulley, and low CNC machining volume that made them so expensive. I remember him also saying that with enough interest they would possibly be persuaded to making them again

mrb63083

iTrader: (4)

I was going to say, if you don't want a pulley there, you can get a shorter belt or just get the Greddy pulley kit... it comes with a new belt too.

RotaryWhat?

iTrader: (1)

The whole point is that some of us want a pulley there after the air pump is removed. I have no interest in underdriving my water pump or worrying about slippage....

mrb63083

iTrader: (4)

Cool... It was just a suggestion.

Chadwick

iTrader: (12)

Here is what I came up with:





Dan

dznutzuk

iTrader: (1)

Lately I've become el cheapo suave so I decided to make my own from a stock alternator pulley, pressed 2bearings and a c clip and I think it came out pretty good for 30bucks

mdpalmer

iTrader: (24)

I made a quick commentary on it (/w pics) in this thread: https://www.rx7club.com/3rd-generation-specific-1993-2002-16/fd-pineapple-racing-idler-pulley-install-notes-warning-798406/