a friend of mine has a 89 Civic Hatch, with a JDM b16. the motors been in it for a couple of years. Just recently while driving normally, at about 3500 rpm in 2nd and 3rd gear the whole car starts to shake. I have no idea what wrong with it. Sometimes it happens, sometimes it doesnt. Under wide open throttle, it seems fine, but then again, with the suspension in the car and the way it is set, you feel every bump in the road, so the bumpiness of the road could over power the shaking? If any one has any idea what this could be, please feel free to let me know. if you need any other info that you think could help to figure this out, ill gladly share.

 

have you balanced your tires? if not, start from there.

 

Also, check your CVs.

 

the tires are fine, and i will tell him to check the cv joints.

 

how do you know the tires are balanced?

 

Check all of the above and add tie rods and ball joints to the list. Does the car have poly bushings?

 

the same thing happen to me but it was right after my swap check your tie rods plus your hub bearings that may be your problem

 

And the ever popular shifted belts in the tires.

 

ok thanks all for the info
i really appreciate it.

 

does anyone know if the gears are missing teeth in the tranny would this cause it to shake?
i have been told by a friend to check there.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JaymieTypeR &raquo;</TD></TR><TR><TD CLASS="quote">does anyone know if the gears are missing teeth in the tranny would this cause it to shake?
i have been told by a friend to check there.</TD></TR></TABLE>

no it sounds like a tire, alignment, axle or suspension issue as stated by people here.

also check that the bushing on your motor mounts havnt taken a **** on you.

if the tranny was missing teeth youd feel it at any rpm.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JaymieTypeR &raquo;</TD></TR><TR><TD CLASS="quote">a friend of mine has a 89 Civic Hatch, with a JDM b16. the motors been in it for a couple of years. Just recently while driving normally, at about 3500 rpm in 2nd and 3rd gear the whole car starts to shake. </TD></TR></TABLE>

i didnt know rpm decided on tire balancing guys...

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote &raquo;</TD></TR><TR><TD CLASS="quote">I have no idea what wrong with it. Sometimes it happens, sometimes it doesnt. Under wide open throttle, it seems fine, </TD></TR></TABLE>

same thing happens to me, and its a hesitation, its something to do with the engine not the suspension or the brakes...im still trying to figure it out, maybe bad timing or the ignitor is going in the distributor, because i did a full tune up to mine and i still get it a bit, and i haven't checked timing yet...

 

you guys may not believe it, but you got a blown shock.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by crxgator &raquo;</TD></TR><TR><TD CLASS="quote">

i didnt know rpm decided on tire balancing guys...

same thing happens to me, and its a hesitation, its something to do with the engine not the suspension or the brakes...im still trying to figure it out, maybe bad timing or the ignitor is going in the distributor, because i did a full tune up to mine and i still get it a bit, and i haven't checked timing yet...

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I have a b16 in my car and I had the same problem, however it was only under load and at low rpm. I know it's not the shocks It didn't do it before the swap only after and I've got &lt; 1 year old Koni Yellows. This also isn't the first I've heard of this issue. JaymieTypeR, is your friend absolutly sure that the problem is rpm related, does the problem occur in 1st gear as well, does the problem only occur under load or also off throttle?
I wouldn't be quick to run out and start buying replacement parts. It could very well be something a simple as plug wires, or ignition related.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Tyson &raquo;</TD></TR><TR><TD CLASS="quote">you guys may not believe it, but you got a blown shock. </TD></TR></TABLE>

shocks are newish...

 

no we just found out what happened, the tranny is completely cooked.
everything else was fine shocks, tierods, axles, cv jonts etc...

 

mounts?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Stefndogg &raquo;</TD></TR><TR><TD CLASS="quote">mounts?</TD></TR></TABLE>

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JaymieTypeR &raquo;</TD></TR><TR><TD CLASS="quote">no we just found out what happened, the tranny is completely cooked.

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