[xj] cranking car at start GEEEEEEEEERRRRRRRRRRRRRRRRRRR

I have had a starting problem with my car since I took ownership,
it is very rare… When I turn the key, a loud grinding noise, car
does start, I turn the key back and it usually starts on the second
try.

Now again this is very rare, but when I turn the key for a second
time, louder than usual grinding sound, but start, then a third,
then the forth time when I turn the key the car starts up.

One of my friends claims that he had the same problem with his 82
Mercedes… he says it is the ‘‘STARTER SOLENOID’’

What do you guys think?–
DON X
Toronto, Canada
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Don,

Your friend is correct. But, and this is important, the longer you let this
go, the greater the likelihood of grinding up the ring gear on the flex
plate. That will be a lot more difficult/expensive to replace.

Peter
'86 XJ6 SIII
Vista, CA-----Original Message-----
From: owner-xj@jag-lovers.org [mailto:owner-xj@jag-lovers.org] On Behalf Of
DON X
Sent: Tuesday, April 06, 2004 7:52 PM
To: xj@jag-lovers.org
Subject: [xj] cranking car at start GEEEEEEEEERRRRRRRRRRRRRRRRRRR

I have had a starting problem with my car since I took ownership,
it is very rare… When I turn the key, a loud grinding noise, car
does start, I turn the key back and it usually starts on the second
try.

Now again this is very rare, but when I turn the key for a second
time, louder than usual grinding sound, but start, then a third,
then the forth time when I turn the key the car starts up.

One of my friends claims that he had the same problem with his 82
Mercedes… he says it is the ‘‘STARTER SOLENOID’’

What do you guys think?

DON X
Toronto, Canada
–Posted using Jag-lovers JagFORUM [forums.jag-lovers.org]–

===================================================
The archives and FAQ will answer many queries on the XJ series…
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Hi Don,

my guess is a combination of starter and ring gear (similar problem on a
TR6). As the starter ‘fires’ forward, the pinion meshes with the ring gear.
It not 100% aligned, and it rarely is, there will be a little interference
as the mesh and the cranking starts. This leads to burrs and rounded
corners on the pinion and ring respectively. When it gets quite worn, it
won’t mesh, but will spin/grind pinion against ring gear.

I redid the ring gear on the TR6, the starter must come out before spring
gets to far gone, and either be replaced or with a grinder, I’ll reshape the
rounded burrs on the pinion gear.

Replacing a ring gear is a bugger to say the least, tranny out, flywheel
off, must be drilled and cut and the new one heated very hot, placed on and
let a cooling shrink fit it… Starters are easier.

Oh, yes, my SIII does this about once every 100 starts… My jag-man says
no worries yet, but if I’m ever looking for something else to do, pull the
starter grind the pinion edges back to shape… It’s on the ‘eventual’ list
Ken

87 SIII

Snippets>>>>
----- > it is very rare… When I turn the key, a loud grinding noise, car> does start, I turn the key back and it usually starts on the second

try.

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In reply to a message from Ken Davis sent Wed 7 Apr 2004:

Don,

I had the same problem and my flexplate got so ground down that it
eventually wouldn’t start. I dealt with the problem for 2 years and
it would screech 50% of the time. It’s one of the worst sounds the
Jag can make and so often happens in the worst places and in front
of crowds! I first thought it was the starter so I replaced it and
it still screeched. I cleaned the starter relay and ignition switch
thinking the solenoid wasn’t getting enough power. No luck.
Basically, you can do all you want in the meantime such as
reshaping the starter pinion gear, filing the burrs on the
flexplate, cleaning the ignition switch and starter relay,
replacing battery and starter nuts with brass nuts, crossing your
fingers, whatever…but as it gets worse the ultimate fix is
replacing the flex plate (flywheel). There also may be a pre-
engaged starter available that might help. I had my flexplate
replaced at Cottman transmission for $500 and have been happy ever
since. They gave me back my old flex plate and it was ground
completely down in three places. One less thing I have to worry
about now!

Jon
'87 XJ6 III
Columbus, OH–
Jonathan Lee
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