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| EdwardBlume |
 May 19 2003, 10:02 PM
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#1
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914 Wizard  Group: Members Posts: 12,338 Joined: 2-January 03 From: SLO Member No.: 81 Region Association: Central California 
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After hard driving at the AX School this weekend, the car is backfiring slightly under deceleration in gear. Valve adjustment time?
Also, on the drive home, at 50-70 the steering was rattling hard after turns then it would smooth out in the straights. Turn again, rattling, then smooth out. Any ideas what these things could be? |
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Replies(1 - 7)
| Brad Roberts |
May 19 2003, 10:05 PM
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#2
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914 Freak! Group: Members Posts: 19,148 Joined: 23-December 02 Member No.: 8 Region Association: None |
No idea.. but I will be down this week. We can take a peek at it..
The backfiring.. could be a small exhaust leak. B |
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| Bleyseng |
May 19 2003, 10:07 PM
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#3
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Aircooled Baby! Group: Members Posts: 13,036 Joined: 27-December 02 From: Seattle, Washington (for now) Member No.: 24 Region Association: Pacific Northwest |
What kind of fuel system, FI or Carbs?
Look at your tires to see if you lost a piece of something is stuck in em. Geoff |
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| ChrisReale |
May 19 2003, 10:36 PM
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#4
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Sleazy Group: Members Posts: 2,665 Joined: 20-January 03 From: San Francisco Member No.: 176 |
Check your wheel bearings and make sure the wheels are bolted tightly to the hubs.
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| EdwardBlume |
May 19 2003, 10:36 PM
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#5
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914 Wizard Group: Members Posts: 12,338 Joined: 2-January 03 From: SLO Member No.: 81 Region Association: Central California
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Brad, now that I think about it, I noticed that both bolts on the exhaust hangar are gone.
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| need4speed |
May 20 2003, 09:21 AM
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#6
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Member Group: Members Posts: 339 Joined: 11-April 03 From: Arroyo Grande, CA Member No.: 564 |
backfiring on decelleration is, in my experience, most often an exhaust leak.
Test: Run the engine cold. Cover both tailpipes so that no exhaust can escape. If the engine dies, then either the leak is very small, or non existent. If the engine keeps running, you'll probably also hear a loud hiss. That's your leak. |
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| Brad Roberts |
May 20 2003, 02:15 PM
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#7
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914 Freak! Group: Members Posts: 19,148 Joined: 23-December 02 Member No.: 8 Region Association: None |
See.. even when I have NO idea.. I have a clue...LOL
B |
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| EdwardBlume |
May 20 2003, 11:18 PM
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#8
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914 Wizard Group: Members Posts: 12,338 Joined: 2-January 03 From: SLO Member No.: 81 Region Association: Central California
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I will reinstall the hangar bolts and diagnose the exhaust for hissing.
The front wheel berings are not loose from external lateral testing, could it be the tires or something else? The shaking only occurs at high speeds during and shortly after turns. |
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