camshaft wear
#13
Registered
Join Date: Dec 2000
Location: Beautiful Lake St. Clair,MI
Posts: 513
Likes: 0
Received 0 Likes
on
0 Posts
Re: camshaft wear
To answer the initial question or post, yes I lost a cam lobe with an Ultradyne after about 125 hrs. I used Mobil 1, 15-40. This was a special problem with Ultradyne Cams for a while.
My question on the racing oils, are do they offer the qualites needed for extended oil change intervals? Are they high detergent so you don't have to change them every 5-10 hrs of operation? Oil change intervals are not an issue with racing engines, but for recreational performace boaters it is. Infact, this post is scaring me because I do not want to wipe out another flat tappet cam because of oil issues, but I don't want to have to change it every other time I go out either. Somebody help me out here!
My question on the racing oils, are do they offer the qualites needed for extended oil change intervals? Are they high detergent so you don't have to change them every 5-10 hrs of operation? Oil change intervals are not an issue with racing engines, but for recreational performace boaters it is. Infact, this post is scaring me because I do not want to wipe out another flat tappet cam because of oil issues, but I don't want to have to change it every other time I go out either. Somebody help me out here!
#14
Registered
Join Date: Feb 2002
Location: Honeoye, NY
Posts: 763
Likes: 0
Received 0 Likes
on
0 Posts
Re: camshaft wear
Originally Posted by Whiteknuckle
To answer the initial question or post, yes I lost a cam lobe with an Ultradyne after about 125 hrs. I used Mobil 1, 15-40. This was a special problem with Ultradyne Cams for a while.
My question on the racing oils, are do they offer the qualites needed for extended oil change intervals? Are they high detergent so you don't have to change them every 5-10 hrs of operation? Oil change intervals are not an issue with racing engines, but for recreational performace boaters it is. Infact, this post is scaring me because I do not want to wipe out another flat tappet cam because of oil issues, but I don't want to have to change it every other time I go out either. Somebody help me out here!
My question on the racing oils, are do they offer the qualites needed for extended oil change intervals? Are they high detergent so you don't have to change them every 5-10 hrs of operation? Oil change intervals are not an issue with racing engines, but for recreational performace boaters it is. Infact, this post is scaring me because I do not want to wipe out another flat tappet cam because of oil issues, but I don't want to have to change it every other time I go out either. Somebody help me out here!
#15
Registered
Join Date: Dec 2000
Location: Beautiful Lake St. Clair,MI
Posts: 513
Likes: 0
Received 0 Likes
on
0 Posts
Re: camshaft wear
I'm talking about dirt and ability to deal with moisture. All the things that oils for consumer usage is designed to do. Of coarse I don't subject my boat to the equivalent of 500 miles at 9000 RPM smart ass.
#16
Registered
Join Date: Feb 2002
Location: Honeoye, NY
Posts: 763
Likes: 0
Received 0 Likes
on
0 Posts
Re: camshaft wear
I really wasn't trying to be "smart". I probably DO have a customer or two who will subject his equipment to comparible abuse in one season. Getting your oil temps up to 212* F should vaporize any moisture, (You should do this with any oil) and proper filtering should do the rest. I change my filters (I use a dual filter system) midway through the season and just top off. --- Jer
Last edited by jpclear; 01-16-2006 at 08:18 AM.
#17
Registered
Thread Starter
Join Date: Nov 2002
Location: metairie,louisiana
Posts: 38
Likes: 0
Received 0 Likes
on
0 Posts
Re: camshaft wear
Thanks for the input. I bought the boat from the orig. owner he lost a cam in less than a year got it warr. had engine rebuilt. I bought it with two hours on it and it lived for ten more hours this time. Completely wiped out one lobe and was working on four others.
#19
Registered
Join Date: Jan 2001
Location: ST. Louis, MO, USA
Posts: 1,658
Likes: 0
Received 0 Likes
on
0 Posts
Re: camshaft wear
I've heard 2 things on various auto/engine forums.
1) Bad batch of cores from china. Just poor grade material.
2) Comp cams recently cam out with a statement blaming changes in oil formulation. They reccomend Rotella oil for break in.
See: http://www.compcams.com/information/...yID=1985582846
1) Bad batch of cores from china. Just poor grade material.
2) Comp cams recently cam out with a statement blaming changes in oil formulation. They reccomend Rotella oil for break in.
See: http://www.compcams.com/information/...yID=1985582846