Tim,
I did this job over the winter so maybe I can help.
You can move the steering rack enough without removing the steering column
and the lower boxed chassis member will not interfere with the damper or
timing cover removal (or replacement).
Removing the lower sprocket is not at all difficult. I used a small puller
and it slid right off. I'm not sure that you need to replace it though.
One thought on this. When you replace the top sprocket, it may effect the
alignment of the chain (ie the sprockets may not be perfectly aligned). If
this is the case, you will have to remove the lower sprocket to re-shim into
alignment.
Can't comment on the quality of the new sprockets, but I'd be cautious about
components from the far east (remember the tranny syncros?) Does
Racetorations carry these sprockets? Might be worth the extra$$$
Good luck,
Peter
'68 TR250
on 6/24/02 2:34 PM, Timothy Holbrook at tjh173@yahoo.com wrote:
> I'm putting in a new timing chain, and have a few questions. Started
> pulling the front damper assembly. It was coming fine and then came to
> a halt. I then realized it was coming into contact with the steering
> rack, so I'm going to have to move the rack forward. Obviously this
> means I'll have to remove the two rack mounts.
>
> Is there enough slack in the steering column to move the rack forward
> without pulling the column off the rack?
>
> After I get the rack forward, will the damper assembly then come off
> okay, or am I going to have problems with the front chassis crossmember
> (note: I'm talking about the lower boxed section chassis crossmember,
> not the upper bolt-in tubular piece, this one I have already removed)?
>
> If the answer to question 2 is "no interference with crossmember", will
> I have interference problems with the crossmember later when I go to
> pull the timing chain cover off?
>
> Is it necessary to replace the timing gears at this point? I ask
> because I fear that replacing the lower gear could be a pain. The top
> one is dead easy of course, but I assume the bottom one needs to be
> pulled, and I fear I may damage the crank or perhaps mangle the
> existing gear while failing to get it off (leaving me...screwed).
>
> I ordered my timing gears and timing chain from Moss. The stuff I got
> isn't branded at all and just has made in Taiwan labels on it or
> something. Is this stuff alright, or should I go to another supplier?
> I don't really want to put poor quality parts in and have to do this
> whole job over again in a couple years.
>
> Thanks!
>
> Tim Holbrook
> 1971 TR6
> Yahoo! - Official partner of 2002 FIFA World Cup
> http://fifaworldcup.yahoo.com
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