I just wanted to know how to find out what size pistons I have in my truck. I'm just replacing the rings, so I would like to know if the pistons are standard size or what. Thanks in avance!

-Nick

 

have you got the motor apart?

 

Yes.. it's totally apart right now.. just waiting to buy piston rings, just dont' know what size

 

Uh.....unless youve done something to the engine with bigger pistons, you should just be able to go to a parts store and get the rings for your particular engine...shouldnt you? If you want, take some calipers and check the exact Diameter of your pistons in the ring grooves....maybe that could help.

 

Well that's what I'm trying to figure out.. I'm not sure if the PO did a rebuild.. the truck has 180k on the clock. Does anyone know the stock piston dimensions?

 

How is anyone supposed to know that when you don't tell us what engine, year and vehicle.

 

Sorry, it's a 1985 22RE (there really should be a spot near your location where you can put your basic vehicle info)

 

In your signature maybe?

 

Hmm.. I should change my name to IDIOT while I'm at it... that never crossed my mind for some reason.. oh well, live and learn!

 

Does anyone know? I want to get them today or tomorrow.. I'll probably be getting the standard size, but I'd rather confirm my decision before buying!

Thanks

 

<sigh> google my friend...google.... <sigh>

look what "22re bore" "im feeling lucky" returns.

http://www.off-road.com/toyota/tech/...toy_motor.html

(if your too lazy to click the linky)

81-82.3, 22R/22REC: (SBTO80)
Bore: 92mm
Stroke: 89mm
Stock Piston: (PATO80)
Notes: Best Choice for Pistons (dome top). You can just deck
the block by 2mm and make this identical to the post-85
block.

82.4-84.7, 22R/22REC: (SBTO80L)
Bore: 92mm
Stroke: 89mm
Stock Piston: (PATO80)
Notes: Best Choice for Pistons (dome top).You can just deck
the block by 2mm and make this block identical to the
post-85 block.

84.8-95, 22R/RE/REC: (SBTO80LC)
Bore: 92mm
Stroke: 89mm
Stock Piston: (PATO80L)
Notes: Best Choice for Block. Piston is Flat-top. Block is
2mm shorter than previous 22R. This gives you a little
bit more compression, but you need an adjustable cam
gear to get cam timing right.

85-88, 22RTEC: (NA)
Bore: 92mm
Stroke: 89mm
Stock Piston: (PATO80T)
Notes: Piston is dished. (?)



bust out that metric ruler. if they are 92mm (3.6220") they are stock.

 

on my 3vze they said toyota on the side which is a good sign they are org/stock.

 

Thanks for that info. I did search google, but I guess I was typing in the wrong search words... and I've never really used the 'i'm feeling lucky' button. Thanks for the info Snap-on even if you were being a borderline smart-ass!

 

the im feeling lucky just automaticaly takes you to the website of the #1 result (at the top of the list)

and yes guilty of the boarderline smart-ass in repsonse to the boardline dumb-ass

but thats ok... it just means i can fill up my boaring ass day hear at work

 

ha ha ha ha ha ha haha ......funny /\

 

Just to confuse you some more the FSM shows 3 different piston sizes, marked 1, 2 and 3. The diameters are
Size 1.... 3.6211-3.6214" (91.975-91.985 mm)
Size 2.... 3.6214-3.6218" (91.985-91.995 mm)
Size 3.... 3.6218-3.6222" (91.995-92.005 mm)

The bores should also be marked 1, 2 or 3, to match the pistons.

 

just remember, even toyota makes oversized pistons.

99.9999% of the time, the oversize will be stamped on the top of the piston.

 

I feel ya.. that's all I was doing too.. 'working!'

Anyway, I'm home now, and I couldn't find a ruler yet.. but the piston has Aisin stamped on it with the number 35030.. sound stock to anyone? I'll be searching google to see if I can find something.. thanks again guys..

-Nick

 

Ok, nothing stamped on top of them... and doing some research, Toyota owns like 23 percent of Aisin.. so I'm guessing it's an acutal Toyota part... I believe I have enough info to buy standard size rings! thanks guys