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Clunk after failed start attempt
#1

Car was hot after a long pull yesterday. About 10 minutes after stopping, starter goes yin-yin-yin-yin-yin clunk. And the clunk was loud. Did it twice. Third time it started and I dared not turn it off until we were parked, ass-end-in on a slight incline for potential bump-start today, at the hotel.



I consulted the Dr. and he thought either loose starter motor bolts or a potential <acronym title='dual mass flywheel'>DMF</acronym>. No other clutch-type or significant drive line problems.



I searched thoroughly and find a lot of gummy starter problems but nothing with a clunk. Anyone?



Thanks in advance



Out in the wilds about 300 miles from the nearest P-mechanic :/



Oh yea almost forgot - anyone ever bump start this car? Its been 30+ years since I had to do that in my old Fords.
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#2

Not sure, but old starters don't like heat and need time to cool. Could be time to replace it.
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1986 Porsche 911 Targa (guards red/black interior)

1993 Porsche 968 Coupe (black)

2005 Acura RL

2004 Toyota Sequoia
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#3

On a somewhat related topic, after fixing my fan relay my alternator has been running much cooler



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1992 Guards Red, Rare White Interior 6 speed, coupe. 130,000 miles. Garage Kept when not running. Anytime there is a problem, $1500 or less fixes it!!!
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#4

Sounds like it could be something to do with the mechanism that engages the starter motor with the gear that is engaged with the flywheel. If it was cranking the engine and quite cranking with the loud clunk, I'm guessing the clunk was the starter gear disengaging from the starter motor. Not sure how the 968 engagement works, so I can only guess based on the symptoms.
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'92 Midnight Blue 968 Coupe

'94 ProbeGT, Eaton SC@9psi, Quaife, TecGT ECU, 300+HP, body sold, parting out

'98 3000GT VR-4, 400+HP AWD beast, didn't fit w/race helmet, Sold

'93 Bone Stock MX-6 Sold (in '05) sadly to the crusher in 2010

'61 Triumph TR-3, White with red leather interior; My First Car
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#5

Wires connected to the starter can cecome corroded and the insulation frays so that the wires touch, take a peek under there.



Jay
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“Faster, Faster, until the thrill of speed overcomes the fear of death.” - Hunter S. Thompson

"I couldn't find the sports car of my dreams, so I built it myself." ~Dr. Ferdinand Porsche

"968Forums, a quaint little drinking community with a serious horsepower problem"

"Life's journey is not to arrive at the grave safely in a well-preserved body, but rather to skid in sideways, totally worn-out, shouting, 'Holy sh*t! What a ride!'"- Unknown
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#6

Hi Rxter,



I have this same problem from time-to-time - seems to only happen in damp cooler weather. I have suspected that I have a case of Gummy Starter Syndrome as is well reported on the site. I am keeping an eye on it for the moment and will probably service mine before our next wet season anyway. We have some really nice weather here in Brisbane at the moment and starter working perfectly although I do have a consistent once-off stumble when starting cold in the mornings (I see another post on that topic as well). Other than that, my car has been running beautifully lately - can't last!!



Peter
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#7

If you did have to replace the starter, you sure don't need a Porsche mechanic....it is the easiest starter I had ever replaced. If you had it up on a lift, you could change it out in 10 minutes. Anyone could do it.
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93 968 Coupe Six Speed

73 Alfa Romeo Spider

07 Audi S8
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#8

[quote name='Paul W' timestamp='1376684180' post='147407']

If you did have to replace the starter, you sure don't need a Porsche mechanic....it is the easiest starter I had ever replaced. If you had it up on a lift, you could change it out in 10 minutes. Anyone could do it.

[/quote]



I second that!
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#9

+2 I did it twice <img src="/forum/images/smilies/968/wink.png" class="smilie" alt="" />
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Dave



'93 968SC Nachtblau Metallic Coupe

'89 944 S2 Zermatt Silber Sold

'87 944 Silber Rose in colour only Sad Sold
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#10

I get the same thing occasionally. It usually happens when the weather is warm and so is the car. On my list to replace this winter along with new motor mounts and coolant hoses.

~tom
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997 C2S

GMC Sonoma SLS, dd

Miata LS, Cheap Thrills

Acura TL, Wifes dd, zzzzzzz

1993 Red 968 M030, after 18 yrs, gone but not forgotten
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#11

So I am not the only one trolling here at 4am - funny
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#12

"So I am not the only one trolling here at 4am - funny"





Dog barked, probably at a racoon, bladder decided it was time to get up... thirsty got drink of water. Aw hell I'm awake now...you know the rest of the story.

~tom
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997 C2S

GMC Sonoma SLS, dd

Miata LS, Cheap Thrills

Acura TL, Wifes dd, zzzzzzz

1993 Red 968 M030, after 18 yrs, gone but not forgotten
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#13

meh, I was up all night...
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