Timing belt auxiliary shaft position

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barnesjtsl
Posts: 203
Joined: Fri Apr 03, 2009 2:13 pm
Your car is a: 1979 Spider
Location: Hillsboro, OR

Timing belt auxiliary shaft position

Post by barnesjtsl »

Looks like my auxialiary shaft is 180 degrees out of position. Am I going to have a problem with the lobe on the shaft hitting the crankshaft. I don't want to pull the dam belt off again.
18Fiatsandcounting
Posts: 3798
Joined: Fri Mar 15, 2019 11:23 pm
Your car is a: 1969 and 1971 124 spiders
Location: San Francisco Bay Area

Re: Timing belt auxiliary shaft position

Post by 18Fiatsandcounting »

On the two liter engine (1979 onward), the lobe on the end of the auxiliary shaft can contact the #2 connecting rod if not timed correctly. This can result in anything from mild damage to the rod, to major damage to the engine.

So, as much as a pain as it is, the aux. shaft pulley should be timed correctly.

-Bryan
PS: Not all engine sizes have this problem, but the 2L does.
barnesjtsl
Posts: 203
Joined: Fri Apr 03, 2009 2:13 pm
Your car is a: 1979 Spider
Location: Hillsboro, OR

Re: Timing belt auxiliary shaft position

Post by barnesjtsl »

Thanks. I went ahead and took the belt off and positioned the auxiliary shaft correctly.

barnesjtsl
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