IslandParkRacing

iTrader: (3)

Hey guys, Just started my LS1 rebuild. My machinist told me to install the cam first to check for any problems with the cam bearings. I installed the cam and it was a tight fit. I used tons of assembley lube. rather be safe then sorry. lol. But anyway. The cam went in with a little encouragement and its still tight. It turns but its kind of difficult to turn. So i took the cam back out and checked all the bearing surfaces and cam surfaces and all look great. lubed it back up and put it back in. again a litle tight but not bad. But it's still kind of hard to turn i figured it would be very easy is this normal for the cam to be tight?

autogeek23

iTrader: (13)

well when i did my cam swap i did not use assembly lube. i mostly followed ls1howto on my cam swap.

http://ls1howto.com/index.php?article=23

scroll down to where the new cam is being installed

IslandParkRacing

iTrader: (3)

So do you think the assembly lube is the culprit? I'm not too worried. I used plenty of lube and I think it should work itself in nicely. Thanks!

crainholio

iTrader: (2)

The only way to be absolutely certain is to mic each of the bearings, and each of the cam bearing surfaces, and calculate the clearance accurately.