What year for the auto belt tensioner
#1
Three Wheelin'
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I bought a used engine that is supposed to be out of a 87 924s. I just noticed that there is no auto belt tensioner on it. Not that it is that big of a deal but I thought all 87 and later blocks had the auto tensioner?
#6
Three Wheelin'
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I thought all 87 and later blocks came with the "auto" tensioner and it did not matter if it was from a 924s, 944 NA or turbo. As I said it is not that big of a deal if they did not but just trying to clear up some confusion.
#7
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On early engines (Pre 87 I think) they used an ecentric roller to adjust tension on the timing belt. Later cars had an auto tensioner with the spring.
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ok. I knew early cars had the eccentric roller for tension. Clark's shows 3 types on the belt tensioning page. The third is the hydraulic, and i thought that was the auto tensioner. Guess i didn't consider the spring one "auto" since you still have to manually set the correct tension. Thanks for the clarification.
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ok. I knew early cars had the eccentric roller for tension. Clark's shows 3 types on the belt tensioning page. The third is the hydraulic, and i thought that was the auto tensioner. Guess i didn't consider the spring one "auto" since you still have to manually set the correct tension. Thanks for the clarification.
The Hydraulic tensioners were used on 968s (Not sure if S2s had them).
#14
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I consider the 968 to be more of an 'auto' tensioner. The later 944 is more of a self-setting tensioner. If you call it an auto-tensioner, some people think it somehow maintains the tension. In reality the late 944 tensioner just allows you to set the tension without a 9201, assuming you trust the spring in the tensioner assembly. The belt tension still needs to be checked every so often with the late 944 setup, whereas the 968 tensioner should self-adjust through the life of the belt. Should. Hopefully. As long as the tensioner itself is working. I plan to have a look at mine every year or two.
Nowadays belt systems have evolved to the point where most people do not think the belt tension needs to be checked, so using words that do not cloud the issue is important in the case of the 944.
I do not know of a good way to describe the spring tensioner that would not lead some people to think it's self-adjusting. This is the best I can do:
Early 944 - Manual
Late 944 - Spring - Self setting (but not self adjusting)
968 - Hydraulic - Self adjusting
-Joel.
Nowadays belt systems have evolved to the point where most people do not think the belt tension needs to be checked, so using words that do not cloud the issue is important in the case of the 944.
I do not know of a good way to describe the spring tensioner that would not lead some people to think it's self-adjusting. This is the best I can do:
Early 944 - Manual
Late 944 - Spring - Self setting (but not self adjusting)
968 - Hydraulic - Self adjusting
-Joel.
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What is the engine Number on the block. at the back on the right side of teh motor just above the #4 exhaust port. Also remeber that there were '86 942S' as well