I just replaced the Timing Belt and Balance Shaft Belt on my 1992 Honda Accord. After everything was put back together the car was revving to high. The RPM's were about 3500 in 5th gear at 80mph. I have taken it back apart several times and can't seem to figure out what is causing it to rev too high. Any ideas?

 

A/T or M/T?

 

m/t

 

Are you saying the gear ratios have changed somehow? I really don't understand how that could happen unless you are actually NOT in 5th gear or there are invisible gremlins inside the car playing games with you.

Do you think the engine is actually running at a higher RPM or is it possible the tach reading is incorrect?

 

It's revving too high in all gears I was just giving you an example of how off it is.

 

I really don't see how this is possible. What is the idle rpm?

 

The idle RPM is fine.

 

Are you sure you aren't playing around? The gear ratios are determined inside the transmission. Are you sure you didn't replace the timing and balance shaft belts inside the trans?

 

No this is seriously what is happening.

I just was looking at a different book though and I think I figured it out. I didn't line up the rear balance shaft correctly, the other book didn't tell me about the groove so I didn't know where to line it up. Hopefully this will fix the problem.

 

I think at 80 my car sits at about 3500 rpm

 

The balance shaft just helps minimize vibrations caused by the engine. A few off shouldn't do too much damage.

Like muffinman said, my 5th gen Accord EX (auto.. not too sure if this helps) is around 3000 at 70mph. And idling at 500-650? Kinda low. LOL. Anyways how does your engine sound? Does the engine sound it is under stress? How was your engine RPM at 80 before? It may sound revving high. I know it did after I changed my 5th gen Timing belt

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by kristing1 &raquo;</TD></TR><TR><TD CLASS="quote">No this is seriously what is happening.

I just was looking at a different book though and I think I figured it out. I didn't line up the rear balance shaft correctly, the other book didn't tell me about the groove so I didn't know where to line it up. Hopefully this will fix the problem. </TD></TR></TABLE>

Also, keep in mind that the rear balance shaft is driven by a 3/1 ratio gear drive. If you spin the sprocket around once, the thing will be on the wrong rotation. The shaft is weighted. You can give the sprocket a little nudge, like rotate it a 1/4 turn with a quick snap but don't spin it all the way around. The sprocket should kinda flop to a stop with the notch near the mark on the block. Or, you can remove the plug in the rear and turn the sprocket until you can fit a pin through the hole in the balance shaft. Then you'll know the sprocket is on the right 1 out of 3 rotations.

But, the balance shaft will only affect the level of vibrations the engine has, not anything with RPM vs. vehicle speed.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TheMuffinMan &raquo;</TD></TR><TR><TD CLASS="quote">I think at 80 my car sits at about 3500 rpm</TD></TR></TABLE>
X2

 

i have an auto and its 85 for me at 3500. 75 is 3k, maybe 3100