JDM_208

HELP! when i push on the gas my tach rises slowly and sounds like
a lawnmower and wont go any faster than 45mph?

Kenteth

air filter, fuel filters, compression check, vac leak.

oh... and the lawn mower thing? Welcome to the rotary world.

drft_180sx

Could be clogged cat??

Drag'nGT

Sounds like he's just here to pick at the cars.

Kenteth

funny, just yesturday I was on the interstate rolling 155mph (downhill with the draft behind me of course)... On a semi-stock S5 n/a too.

hondahater

iTrader: (2)

I remember on one of my first 1st gens the I as running on one rotar and it sounded really bad like a lawn mower and would not go over about 45mph, do a compression check.

RXciting

check your timing!!

Syonyk

Mmmm... lawnmower sound... the sound of a blown rotor. Combined with very slow revving and lack of power, I'd place money on a blown rotor.

Before you goof around with fuel filters or cats or anything, pull the plugs and turn the engine over (by hand with a socket works fine). You should hear alternating "chuff" sounds from the front & rear plug holes - one chuff per half turn of the eccentric shaft (crankshaft). I'm betting you won't. If you don't, there's no point in doing anything else - the engine has a blown rotor and needs a rebuild.

-=Russ=-

ajsuper7

^ id agree, unless you have no exhaust system it wont sound like a lawnmower, but take the manifold off or straight headers and you get the absolutly awful lawnmower sound. or in my case strip a header bolt and only leave 3 bolts holding the header in place and have a huge leak...now that is the worst sound i would ever want to hear out of my car.

Makenzie71

From that vivid disctription it's obvious that your OMP is out! You need a new horizontal flash tube and transmission before your flywheel throws a rotor!

Syonyk

Lawnmower + slow revving + absolutely no power = blown rotor, IME.

-=Russ=-

88IntegraLS

All u immature punks making jokes give this section a bad name. I vote for blown seal too. I know the lawn tractor sound all too well, and if it comes with no power, horrible shakes of the engine, bouncing vac or boost gauge, and a more pronounced smell of gas in the exhaust, time to pull that badboy and replace the seal(s) that went, along with some other stuff usually.

Makenzie71

People who come in here saying "my car's making a funny noise what's wrong with it" give newbs a bad name.

Tessai

Odd... I get the lawnmower sound, smell, slow rev, sputtering, all that jazz after about 10min of driving... turn the car off, turn it back on, and its fine for another 10 min.

Parastie

Blown or about to be blown apex seal on one of the rotors. Do a compression check to verify, but i'd agree with everyone else saying it's blown.

rotarygod

iTrader: (1)

I agree with others here. The lawnmower sound is what a 1 rotor sounds like. A true dual exhaust also sounds alot like this. You need to pull the trailing spark plugs out, remove the egi fuse, and try just cranking it over. You'll be able to hear the compression pulses this way. If 1 rotor is bad, you'll know it.

slidebabyslide

mine does the same thing but only when the engine is warm up, all so mine smells hella rich like a lawnmower, they told me it was my tps, cuz my car won't rev over3 , the revs just bounce all over the place, car jerks around and stuff, if i let the car cool down it will work cool, and after that it will do the same thing, will jerk around if i just step on hte gas, have to **** gears hella quick to keep the revs down, did compression check, i got 71 compression on both rotors, so could that be my tps? **** this car sucks hahaha, not the 7's but my car it runs skol for a while lets say it runs like is should for a month then ***** up, hahaha my car is like biach, i think if i run 91(fuel) it runs cool, but my car is a s4/n/a. aight latez

rs_1101

ROFFLE.. check your headlight fluid while your down there..

RotaryResurrection

iTrader: (8)

http://www.rotaryresurrection.com/ro...lder/comp.html

chiefnobum

my n/a every once in a while cuts out and sounds and feels like it's running on one rotor (lawnmower sound, slow revving, no power) but it's just some wiring to CAS you just have to play around with it and it goes back to normal.

rs_1101

i get that problem on startup sometimes.. i know exactly what it is.. kinda hurts my feelings ya kno?

88Rx-7turboII

iTrader: (2)

old thread i know but i was just wondering about post #20, could this also happen with a tII, running poorly due to wiring to the CAS?

need RX7

iTrader: (4)

FWIW, my car did the same thing when the wire to 2 of the injectors got so brittle that they cracked. It was fine after I soldered some new injector connectors on.

TehMonkay

iTrader: (-1)

Youre definately running on one rotor, just have to figure out if the compression fuel or spark is what is causing it.

btbaus

iTrader: (3)

my seven used to do that on startup too. i changed the spark plugs, spark plug wires, and the fuel filter and ive never heard that lawnmower sound again.