Replace a timing gear or replace both timing gears? (1 Viewer)

[joeyg1973]

So I am rebuilding my 2f and I needed to replace my camshaft timing gear with a new one simply because the rubber/plastic in there is cracking and because it is just a good idea to do after God only knows how many miles and what kind of abuse this motor had before I got it.

I am concerned that not replacing that will mean that I will get a terrible whine from the new gear meshing with the old one. I spoke to the techs at the local Toyota dealership and they said that they don't need to be replaced in pairs and that it won't whine, but I am not so sure that is true.

Question is, do I also need to replace the timing gear on the crank too?

 

[CruisinMT]

I would do both I just did this when I put in a new cam. save yourself the worry. do both and be done with it.

 

[FJ40Jim]

No, the gears do not need replaced in pairs, unless they are both damaged. Since the cam gear is only being replaced as a preventive measure, there is no need to replace the (bombproof) crank gear.

As for the toyota dealer actually having the right answer to a tech question about an engine that went out of production 21 years ago: Even a blind squirrel finds a nut sometimes.