3500 Cam Timing

Hi Colin,

You can download the manual and parts catalog from Ivan Ruiz web site: The Car Nut
http://www.thecarnut.com/maseratimanuals.html
Buy a set of micrometers because there are very few markings on the cams and crank.
Takes a bit of practicing but a bit of an engineer can do it

Success,

Bart

 

Hi Colin,

I have never seen these valve diagram charts, never needed them either. I just followed the instructions in the manual at TDC and that always sufficed for my 6 in lines and V8's to make them run properly. Just make sure when doing this that you tension the chain an pull all (eventual) to the running direction, it is a bit of a precise job.

Success,

Bart

 

Colin, listed below is some limited info that may help. There are three sets of cams, maybe more for the six cylinder engines. This information was published by M.I.E. in the early 1980's
Cam Part# Timing angles Clearances (in) Tappet lift(in)

1. Inlet # 48377 A.A.45 Deg C.A. 87 deg .004 .040-.050
Exhaust#48377 A.S. 73 deg C.S. 40 deg .008-.009 .036-.040
These are the standard cams for most 3500.

2. Inlet #48132 A.A. 35deg C.A. 72deg .012-.013 .080-.090
Exhaust# 50022 A.S. 63 deg C.A 25deg .010-.011 .080-.090
These are the sprint cams that some engines had

A.A Apertura Aspirazione
C.A. Corsa Aspirazone
A.S. Aspertura Scaricio
C.S. Corso Scaricio

 

Colin,

The valve diagram can be found on the car's
date sheet, an handwritten A3 format document
wich was made for each car at the factory.
You can use the general data but the document
specifies camshaft part numbers and valve timing
for a specific vehicle. Available at Maserati.

Ruud