Assuming you drive in the United States, 105k miles.

http://www.gates.com/brochure.cfm?br...preset663Gates

For Canadians, go to
http://www.honda.ca/HondaEng/YouAndY...eCalculator.ht
m

"Grumpy" <lomland@verizon.net> wrote
> I just purchased a 1998 Honda civic with 70000 miles. It did not come with
> an owners manual.
>
> Can someone tell me when the timing belt should be changed.
>
> Is it past due?
>
> Thank you in advance for your help