So I have a 97 Honda Accord, with about 100K, so I got the timing belt service done last week. Replaced parts were: Timing belt, water pump, balance shaft belt, valve cover gasket, timing cover seal, oil pump seal, cam shaft seal, and a couple external belts.
Now, prior to this service...the car ran extremely smoothly. Now...while accelerating at lower speeds (say 5-30mph) I am noticing much more vibration in the drivetrain, and overall a deeper sound. Its a fine vibration, but it can be heard and felt through the pedals.

Any ideas of what this could be? SOmething to be worried about?

 

take car back and tell them the situation
have them double chk the work they did ,,
make sure they got the balancer shafts aligned properly..
make sure they tighten the upper left .. motor mount ,

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by accord-pro &raquo;</TD></TR><TR><TD CLASS="quote">
make sure they got the balancer shafts aligned properly</TD></TR></TABLE>
I would narrow it down to this. It's very easy to get one 180 degrees out. You will definately notice a vibration difference then. But no need to fear any damage. It's only there for your comfort (not a vital engine part). Heck a lot of people just take the shafts out and put a block off plate in if they plan to use the car for a race application.
But definately take it back and have it fixed.

 

I do plan to take it back. The other thing that I noticed was that it seemed like the car was almost geared lower. For example, if I am cruising at 70mph, and let off the gas, the engine braking effect is much more pronounced. The car is an automatic, and ususally the engine braking on this car wasn't that pronounced.

 

i had the same problem with a 99 prelude i used to have .
bump for an update.

 

yes, sounds like a balance shaft issue..

 

notice the date of the original thread

 

oops

 

it's all good. Just trying to keep the new advice down. I think the OP is long gone from HT.