How can you determine if the cam is worn on a raw water pump? Simply compare it to the cam in your 'spare' pump's service kit. If you don't have one, take the old cam to a parts house and compare it to a cam from one of their service kits, even if they have to order the kit first. *Rudy & Jill Sechez * *BRINEY BUG-a 34' Sail-Assisted Trawler * *Anchoring Consultants-trawlertrainingabc.com* *850-832-7748 * *Top Sail Inlet NC Northbound-Chesapeake* <http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> Virus-free. www.avg.com <http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> <#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>