Aloha Vance,
I don't know if you saw my post last night (calling all experts) but this
response made me feel that I should add something.
When I replaced my head, I installed the shorter pushrods and new tappets!
Could this have anything to do with my starting problems? Do I / Should I
also have my cam reground?
Thanks in advance.
Mark Bullard
Kailua, HI
----- Original Message -----
From: "Navarrette, Vance" <vance.navarrette@intel.com>
To: "Nathaniel Steiner" <nathaniel_steiner@hotmail.com>;
<6pack@autox.team.net>
Sent: Tuesday, May 20, 2003 5:21 AM
Subject: RE: Now what?
> Nathan:
>
> If you replace the lifters, you MUST replace the cam. If you
> fail to do so, your cam won't make it 2,000 miles before you lose a lobe.
> Any reputable cam grinder will at least offer the option to
> have the regrind nitrided or otherwise hardened, so to be safe have
> the cam hardened.
> Shorter pushrods are available from Rimmer Bros, I believe.
> I understand that you can have your existing pushrods shortened, but
> I do not know the tradeoffs involved.
> The S2 might be a bit stout for a daily driver. David Vizard says
> the limit for a street cam is 270 degrees advertised duration. If you
> want to go to a stronger cam, try the TR5 cam (269 duration) which is
> within his recommended limits. There are several cams that fill
> the bill. Go here: http://triumph.hottr6.com/tr6cams.html
>
> Cheers,
>
> Vance
>
> ---------------------------------------
> The most likely way for the world to be destroyed, most experts agree, is
> by accident. That's where we come in; we're computer professionals. We
> cause accidents. - Nathaniel Borenstein
>
>
>
> -----Original Message-----
> From: Nathaniel Steiner [mailto:nathaniel_steiner@hotmail.com]
> Sent: Monday, May 19, 2003 10:47 PM
> To: 6pack@autox.team.net
> Subject: Now what?
>
> <snip>
>
> Anyhow, now on to my quandary. I started pulling out the lifters to clean
> them. All 12 are pitted and dished on the bottoms...uh-oh. No question
> that they are not going back in. Do I condemn the (early) cam as well?
> There is almost no visible wear on the lobes, it would surely be a good
core
> for a re-grind. That brings me to my next question, what do I do for a
> replacement cam. I have considered a performance re-grind like the S-2 or
> GP2, mostly because the price is right, but I am a bit gun shy about
running
> a re-grind. Will one of these hold up? Are they re-hardened? I also plan
> to substantially increase my compression as long as the head is off, and
> because I am considering a longer duration cam. At 3.535" the head seems
as
> thick as, or even thicker than my skull. I will shoot for about 9.0:1
> compression, 9.5:1 max. Anybody know of a reasonable source for shorter
> pushrods? Comp Cams and Crane used to make a DIY pushrod kit. Anybody
try
> one of these? Are they still around? I have the technology to accurately
> face tubing to length so shortening a press together tubular rod shouldn't
> be a problem.
>
> <snip>
>
> Nate Steiner
> CF140U
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