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1990 Volvo 740 timing belt

Tiny
TWRY5515
  • MEMBER
  • 1990 VOLVO 740
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 110,000 MILES
I had a timing belt break and am having trouble installing the new timing belt. I am having trouble aligning the marks on the cam shafts and all the timing gears in proper timing sqence for TDC. Is there any info on the proper way to install a timing belt when one broke while running. The cams and engine turn over freely so I don't think there is any engine damage, just can't seem to get the timing correct.
Thanks T.
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Saturday, January 12th, 2008 AT 2:16 AM

2 Replies

Tiny
MHPAUTOS
  • MECHANIC
  • 31,937 POSTS
Hi there,

You need an 8mm locking pin to locate the crank shaft, this goes into a hole near dipstick tube, there will be a rubber plug, trouble is you need a special Volvo tension gauge P/N 5197 and my reference book say that these engines will normally damage valve if the belt breaks, with a special caution never to rotate engine with out a belt fitted. The timing mark on the crank is at 6-00 O'clock and the cam is at 12-00 O'clock.

Mark (mhpautos)
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Saturday, January 12th, 2008 AT 6:58 AM
Tiny
TWRY5515
  • MEMBER
  • 4 POSTS
Thanks Mark for the information about the timing belt. Looks like I need special tools.
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Saturday, January 12th, 2008 AT 1:43 PM

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