Cam Break-in and Setting Crank Sensor Gap

[1987 Grand National]

I just installed a comp cams flat tappet cam. I was thinking I would use some brad Penn 10w-30 with a bottle of zddp and run it at 2k rpm for 15-20 minutes to break it in. As for the crank sensor gap, is there a spec on the gap between it and the reluctor? I would appreciate any recommendations.

 

[bogies87]

I personally use a straight 30w oil with a bottle of ZDDP. Run the engine at 2500-3000rpm for 29min. Shut it down and let it cool. Change the oil and filter and put my favorite (mine is VR1 20-50) and ZDDP.
Also as long as there is a gap and not hitting the ring you will be good. There is a spec but cant remember what it is.

Sent from my SCH-I535 using Tapatalk 2

 

[turbo nasty]

Cam break in...My preffered way......Dino oil somewhere around 30w - 10w40 and a bottle of zddplus, run for 30 minutes varying RPM from 2-3 k during that time. Let engine cool and change oil and filter.
Before restarting allow the engine to cool completly to room/amb temp before restarting, allowing the valve springs to cool helps their life.

Crank sensor...make sure sensor is equally spaced and not too deep or shallow and your good.

 

[highboostgn]

I just installed a comp cams flat tappet cam. I was thinking I would use some brad Penn 10w-30 with a bottle of zddp and run it at 2k rpm for 15-20 minutes to break it in. As for the crank sensor gap, is there a spec on the gap between it and the reluctor? I would appreciate any recommendations.

Read the paperwork that came with the cam. Comp calls for 30min at 2000-2500rpm.

 

[fastblackracing]

Best way I find to set the crank sensor is to cut 2 strips of cardboard 1/4" x 2" long off the lid on a oil filter box and loosen the crank sensor bolt, the 5/16 " one and slide the cardboard between the crank ring and sensor on each side . This will get you centered pretty well then re-tighten the bolt. The card board should be around .015 thick. HTH