Stepdaddy

the other day i removed the air pump,carb,ac,ac bracket, shrowd and fan and all emitions and clutched fan.the thing is i can turn the main pully with my hand...is this bad..i can hear comprestion but should it be harder to turn? just wondering b/c the only thing on the engine are the manifolds.

Stepdaddy

cheapie

I can turn mine by hand. The compression is real low.

jeremy

iTrader: (1)

rotaries are fairly easy to turn over. good thing for push starts. i wouldn't be concerned.

onepointone

yea, its normal. thats how ive been checking motors at junkyards lately on my search. my dad was telling me how if you cant turn it, thast not a good sign, and turn it to hear the suction through the intake, then take off the manifold and feel to see if all the apex seals are there.

AdrenalifeRX7

I can't turn mine at all...even with all 4 plugs out. What's that mean? I'm a decent sized guy, I bench 190 lbs 45 times in 3 sets every night. Why the hell can't I turn it? The motor runs good but I have it running a little rich to compensate for high boost.

rotor vs. piston

Is it in gear while your trying to trun it?????

xfeastonarsex

iTrader: (5)

Cheapie,, your talking about turning it over with the spark plugs still in correct?

jeremy

iTrader: (1)

i have a grip exercisor i could send you.

peejay

Sparks plugs shouldn't matter. Rotaries generate next to no compression at such low speeds. Typically you should be able to turn it over with finger pressure on the alternator pulley.

This is why making sure your battery cables and battery are always in good condition is so vitally important... if the engine cranks too slowly it won't generate enough compression to fire, and you end up flooding.

Stepdaddy

okay good,also does anyone know what size bolt holds on the intake manafold..if you on the side of the car its on its the nut on the bottom left i got the to on the right side off but cant see or get the other one..its deep in the heart of the beast..thanx for the info

Davidgarner0069

Sorry im new but which way do you turn it clockwise or counter, oh yeah my rx isnt running right now

cheapie

xfeastonarsex said:
Cheapie,, your talking about turning it over with the spark plugs still in correct?

Yes that is correct. It turns so easy that I ran over my foot when I was taking the fan off in gear. I also half to always remember to use the parking brake in my driveway, or it will roll down hill. It feels like an engine with no pistons. Oh, wait, it is.

racermike

Intake bolts (4) and nuts (2) are all 12mm stock. Takes a little practice to get to them all easy. Agreed that you can turn the engine by hand, but do a compression test if it is of concern.

Terrh

iTrader: (7)

wow, you guys must be pretty ******* strong. With the plugs in my 4 port turbo engine, it's rather difficult to turn the engine by hand from the front pully. It can be done, but I wouldn't call it an easy task.

With the plugs out, on the other hand... lets just say I've got an engine sitting on its flywheel that I can spin like a top.... hehehehhehehe

12abridgeport

i turn my engine over no problem every time i put in on TDC to adjust the timing

pratch

Most of us that turn it by hand don't have power steering on our Rx-7s. Coincidence?

12abridgeport

that's right, i almost forgot about that. i only have one pulley on mine