OH okay... Bernd must be right.
Crower must be wrong.
When I walk into Crower tomorrow and sit down with David Crower to discuss cam profiles, I'll let him know that he is wrong in telling ME there's not a regimental break-in for my roller cam, only to just install it-- and drive the truck normally (and of course making sure everything is A-OK before I romp the living piss out it like I do).
Just like adding new roller lifters, or roller rockers...a roller cam is no different (general common sense is to take it easy, let things seat-- 50 miles or so, varied driving, no WOT max rpm runs).
The procedure you listed is for a hydraulic or solid lifter cam. Plain and simple-- I did this last year, 2000 rpm for 20 minutes on my 383-- with a Crower hydraulic cam, non-roller.
Sam
>
> From: "Bernd D. Ratsch" <bernd@texas.net>
> Date: 2002/10/21 Mon PM 09:04:10 EDT
> To: dakota-truck@dakota-truck.net
> Subject: DML: RE: RE: RE: Cam swap break in?
>
>
> There IS a break in period for ANY camshaft Sam.
>
> Even Crane, CompCams, Elgin, and Crower will tell you this.
>
> "IMPORTANT! Don't allow the engine to run
> at less than 1500 RPM during the first halfhour
> of operation. Slow engine speeds invite
> premature cam and lifter wear and may
> cause their ultimate failure. Change RPM
> frequently to direct oil splash to different
> areas of the camshaft. Vehicle may also
> be driven during break-in period."
>
> Even with used rollers, you still need to "break in" the camshaft.
> Remember, they're coated with a special lube for initial break in.
>
> - Bernd
>
> -----Original Message-----
> From: owner-dakota-truck@bent.twistedbits.net
> [mailto:owner-dakota-truck@bent.twistedbits.net] On Behalf Of Sam
> Sent: Monday, October 21, 2002 10:12 AM
> To: dakota-truck@dakota-truck.net
> Subject: DML: RE: RE: Cam swap break in?
>
>
>
> There's really not a break in for a roller cam-- that procedure is for a
> hydraulic cam (non roller)... But it wouldn't hurt.
>
> Sam
>
>
> -----Original Message-----
> From: owner-dakota-truck@bent.twistedbits.net
> [mailto:owner-dakota-truck@bent.twistedbits.net] On Behalf Of Wisotzkey,
> Rich
> Sent: Monday, October 21, 2002 8:02 AM
> To: 'dakota-truck@dakota-truck.net'
> Subject: DML: RE: Cam swap break in?
>
>
> Hi Bob,
> Once you get it cranked up, run the rpm around 1800rpm for a good 20
> minutes. I ran mine between 25-30 minutes on both cam break-ins. After
> that, you should be good to go, but I did treat my semi-gently for a few
> road miles until I felt comfortable with it. Have FUN!!! Rich - Ashburn,
> VA
>
> -----Original Message-----
> From: Bob Tom [mailto:tigers@bserv.com]
> Sent: Monday, October 21, 2002 10:04 AM
> To: dakota-truck@dakota-truck.net
> Subject: DML: Cam swap break in?
>
>
>
> Hi to all you cam swappers,
>
> I'd like to know what method you used to break in a roller cam after the
> install? Also, what, if any, precautions you took when driving after
> the break in? I thank you for any real-life inputs.
>
> Bob
>
>
>
>
>
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