I own a street sweeping business here in California, USA and I have a really hard time getting parts for my sweeper truck engine that happens to be an A15. The companies that sale me my parts will end up putting me out of business with there crazy HIGH prices and my lack of knowledge on the subject.

I need a source for engine parts badly! 

I would like to get a repair manual for these engines!

I've also noticed there seems to be different kinds of A15's and I would like to know how to identify the engines I have. 

I found this site because I was searching for a distributor cap and one of the users on this site took some photos of his distributor and the part number on it. Needless to say it match my perfectly. 

I can take photo's of parts if that will help:) I really need help on this! I have one supplier and they seem very greedy and I want to keep our business going so I pay the crazy prices:(

Please help! God Bless!!!!

~Matt~

P.S. This is the post that shows a photo of a distributor cap I have on both of my sweeper truck. http://datsun1200.com/modules/newbb/v ... at&topic_id=27808&forum=1