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1986 BMW 528e Cranks but won't start

Tiny
JCANGIALOSI
  • MEMBER
  • 1986 BMW 528
I have a 528e with an Auto transmission, 158k miles. As of this morning the car will crank but not turnover. Has been working fine for the past year. I smell fuel and suspect that its not a fuel system problem, as it seems fuel is getting to where its supposed to. Battery, and starter are relatively new. Any suggestions?
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Sunday, September 2nd, 2007 AT 3:11 PM

3 Replies

Tiny
DOCHAGERTY
  • MECHANIC
  • 9,601 POSTS
Start with the basics, does it have spark? Is there fuel being injected? Is the engine compression within a normal range? Is the timing belt ok? Repost and let me know
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Sunday, September 2nd, 2007 AT 5:08 PM
Tiny
JCANGIALOSI
  • MEMBER
  • 2 POSTS
After checking it seems that there is no spark but there is fuel being injected. I turned on the car and heard the fuel pump starting in the rear of the car. How would I check for the timing belt and engine compression?

Jeff
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Monday, September 3rd, 2007 AT 1:16 PM
Tiny
DOCHAGERTY
  • MECHANIC
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As to the timing belt and compression question, I start by removing the oil cap and looking at the camshaft while the engine is cranked over. The compression test can be done by removing the spark plugs and installing a compression tester or by listening to the cranking speed of the engine, it should be steady.
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Monday, September 3rd, 2007 AT 5:46 PM

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