worn cam? what now!



worn cam? what now!

Postby grumpyvette » March 29th, 2015, 11:48 am

MarkH8801 wrote:
https://www.youtube.com/watch?v=g85zMdCdhJU

Exhaust lobe on #1 is just about gone and it looks like the one for cylinder #3 isn't far behind it.

Car had a strange consistent miss and pop in the intake above 2500 rpm. Acted like the valves were floating or weak valve springs.

I'm not real sure what I'm going to do with it right now. It definitely needs a cam and lifters but there's also a lot of "while I'm at it's" or "I might as well's" involved with going into an old motor. Throw a cam in it? Rebuild the motor? Motor swap? Not sure...




Youll want too keep in mind that all that ground-up metallic debris that resulted from the rapid wear of the cam lobe and lifter is and will continue to circulate along with the oil both through the oil pump and some will ALWAYS make it past the oil filter into the engines oil passages, theres currently bound to be an amazing AMOUNT OF METALLIC TRASH IN THE OIL SYSTEM, PASSAGES, OIL PAN and embedded in the BEARINGS along with fine metallic dust embedded in the other cam lobes, and valve train components, this is UN-avoidable, from the worn cam/lifters, failure to clean out the block will likely result in problems if you just slide in a replacement cam and lifters.THINK THINGS THROUGH! a well planed engine repair or engine swap will go FAR smoother than just randomly stuffing parts in the car

http://forum.grumpysperformance.com/viewtopic.php?f=51&t=2919

USE OF THE CORRECT MAGNETS and shrapnel screens would have prevented MUCH of the inevitable bearing damage you currently are sure to have, but its not a 100% perfect answer to the problem, although its a huge improvement..
Image
Image
http://forum.grumpysperformance.com/viewtopic.php?f=54&t=120&p=867&hilit=MAGNETS#p867


READ THIS THREAD, and its sub links to see how a correctly built engine is assembled
http://forum.grumpysperformance.com/viewtopic.php?f=69&t=3814

yes you have dozens of options , yes your budget will surely limit those options, and I sure can,t decide on your course of action or options but I can sure point out what has worked very successfully in the past

yes BBC engines are an option
http://forum.grumpysperformance.com/viewtopic.php?f=32&t=151

http://forum.grumpysperformance.com/viewtopic.php?f=38&t=6

other options

viewtopic.php?f=69&t=9930

http://forum.grumpysperformance.com/viewtopic.php?f=50&t=428

http://forum.grumpysperformance.com/viewtopic.php?f=50&t=1249

viewtopic.php?f=69&t=519

viewtopic.php?f=52&t=10705&p=46737&hilit=charts#p46737
IF YOU CAN,T SMOKE THE TIRES AT WILL,FROM A 60 MPH ROLLING START YOUR ENGINE NEEDS MORE WORK!!"!
IF YOU CAN , YOU NEED BETTER TIRES AND YOUR SUSPENSION NEEDS MORE WORK!!
grumpyvette

User avatar
Site Admin
Site Admin
 
Posts: 14105
Joined: September 14th, 2008, 1:40 pm
Location: florida

Return to Tools, Procedures, and Testing trouble shooting

Who is online

Users browsing this forum: No registered users and 4 guests

cron