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View Full Version : New 240, some newbie questions :)


s13rocket
03-19-2002, 12:25 AM
After much searching... I just bought a '93 fastback... motor with 70000 miles, body with 135000 miles for $3200 - a Canadian car (in Texas now)

Somthing about this one stood out from the others... probably the LSD. <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/hehe.gif" border="0" valign="absmiddle" alt=':hehe:'>

anyways I have a few Q's

1.) Is it normal to remove the cap on the valve cover and have air shoot out (pulse out) as if its pressurized when the car is running?

2.)I'm getting alot of vibration in 5th gear at 40-46 mph under light acceleration, and also when i let off the gas... vibrates the car pretty hard.. like a massage... is this normal?

3.) also the car decelerates fairly quickly, 5th gear even at 2000-1800 rpm when I let off the gas (i'm worried about this old transmission) <-- sorry this may seem like a really dumb question, been a loooong time since I drove a manual

I'm getting a fairly loud rattle/rubbing/scraping sound from the front of the motor.. So im going to be removing the valve cover tomorrow, and possibly the front of the engine to take a look at the timing chain. Ill post my experience with that if anyones interested (Ive heard this is a common problem with these motors)

I'd really appreciate it if any1 can answer any of these questions...!

cya!

daywalker
03-19-2002, 12:47 AM
ill be as nice as i can be <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/wink.gif" border="0" valign="absmiddle" alt=';)'>

1) yes its normal for air to shoot out its called crank pressure and dont do it u might get a MIL because of vacuum leak

2) its normal and what are u doing in 5th @ 46 mph the gear is actually overdrive. its like riding a mountain bike in the largest gear at low speed(ur legs would be shaking 2)

3) stick cars decelarete quicker than automatics and if ur tranny was shot it would be the synchros @ that milage.

the rattle might be ur tensioner on the chain and thats normal 2

s13rocket
03-19-2002, 12:53 AM
</span><table border="0" align="center" width="95%" cellpadding="3" cellspacing="1"><tr><td>Quote (daywalker @ Mar. 19 2002,12:47)</td></tr><tr><td id="QUOTE">2) its normal and what are u doing in 5th @ 46 mph the gear is actually overdrive. its like riding a mountain bike in the largest gear at low speed(ur legs would be shaking 2)</td></tr></table><span id='postcolor'>
Are you saying i Shouldnt be in 5th gear at that speed? The Manual Itself says to be in 5th gear at 40mph or higher for cruising

Thanks for the answers

daywalker
03-19-2002, 12:57 AM
no u can be in 5th @ 20mph and it wont hurt its just hard to speed up when u want to. ur not anywhere close to where the power band starts.i usually go in 5th @ 50 or above aound 2500 rpm

burgy240
03-19-2002, 10:41 AM
I have to agree with daywalker bout your shifting. &nbsp;You won't KILL the car or anything, but you probably want to still be in 4th at 46 mph. hell sometimes i'm still in third &nbsp;<img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/blush.gif" border="0" valign="absmiddle" alt=':blush:'>

weitau
03-21-2002, 01:07 AM
I get shaking too at 40-46 mph in 5th, but only when accellerating. &nbsp;I think any shaking is bad because you are stressing the engine, so if you are going to accellerate, go into 4th, and save 5th for cruising.

my 2 cents.

luey02
03-21-2002, 07:13 AM
actually, the manual I have say 45 is the point to shift for best fuel econ. and no rattle. Between 40-45, you'll be ok on a down hill acceleration, not uphill.

David Aamidor
03-24-2002, 01:10 PM
Instead of worring about what your mph are look at your tach.
That is a better way to determine when you should shift.

HotRodGuy
03-24-2002, 10:48 PM
After you've been drivin fer a while then ya won't even need ta look at the tach, you'll know when to shift just by the way it "feels" and sounds.

damn, some times I'm still in second at that speed! <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/nervous.gif" border="0" valign="absmiddle" alt=':nervous:'> But I drive hard and usually don't shift until at least 5 grand and when I'm on it real hard it's closer ta 7!

And yes, you are putting too much stress on the engine when it "shakes" like that and I bet it "knocks" when ya do that too, don't it?