Mazda Rotary Club

General => General Technical => Topic started by: rx7danny on June 18, 2012, 07:07:58 PM

Title: eccentric shaft
Post by: rx7danny on June 18, 2012, 07:07:58 PM
think my essentric shaft has bust
car vibrates and sounds like single diesel tractor
has anyone had this problem
whats the likley damage
danny
Title: eccentric shaft
Post by: davehg on June 18, 2012, 07:50:18 PM
Won\'t be your eccentric shaft it\'s more likely you\'ve blown it up. Get it compression tested. Also try new plugs or check the map sensor hose.
Title: eccentric shaft
Post by: rx7danny on June 19, 2012, 06:22:41 AM
2weeks till comes apart
pulley on shaft now has a wobble when turning over
blown this before doesnt feel the same
Title: eccentric shaft
Post by: davehg on June 19, 2012, 06:54:14 AM
Ooh sounds strange, only suggested its popped as I\'ve never heard a shaft go, I\'ve seen a front pully am attachment shear causing a pully to wobble.
Title: eccentric shaft
Post by: rx7danny on June 26, 2012, 12:17:43 PM
will keep u up to date
will know soon
Title: eccentric shaft
Post by: JayDee on June 26, 2012, 02:00:27 PM
Shafts can be bent, normally will take out stationary gears and bearings all needle bearings and spacers at the front.
If there is lots of copper I would change the sump, oil pump even maybe oil coolers unless you can clean them well.
Have taken off the front pulley to check it, it could just be that if the crank sensors are not picking up correctly due to a bent pulley.
Title: eccentric shaft
Post by: rx7danny on June 26, 2012, 06:44:25 PM
cheers jd
thanks for reply
should be out and stripped on27th
guy who was mapping it said he had not heard engine sound like that before
ps see you have essentric shaft for sale
Title: eccentric shaft
Post by: Ada7 on June 26, 2012, 09:26:43 PM
Not have much luck again Danny :(
How you doing now anyway?

Adam
Title: eccentric shaft
Post by: rx7danny on June 26, 2012, 09:58:05 PM
luck is not my strong point at the moment
just call me jonah
hopefully ready for rotostock
with t78 and massive v mount
but no money
one more treatment for me and then 3mths off it
whoop whoop
ps why when i put myself on fduk rotostock list im removed when next one is posted
Title: eccentric shaft
Post by: Ada7 on June 26, 2012, 10:11:15 PM
Glad you\'re doing well and your getting through your treatment. :D
What porting are you going to have with the T78 then?

Adam
Title: eccentric shaft
Post by: rx7danny on June 26, 2012, 10:53:35 PM
its already got large street
you will like the v-mount
4inch thick and so wide pipes come out where mtors for lights used to be
Title: eccentric shaft
Post by: Ada7 on June 26, 2012, 11:15:13 PM
That is BIG! You\'ll have to put some pictures up :D Have you changes your light too then?
Is it like the radtec set up, like mine?

Adam
Title: eccentric shaft
Post by: JayDee on June 27, 2012, 12:48:26 AM
Yes I do, its a nice bit of kit.

Quote from: rx7danny;827516cheers jd
thanks for reply
should be out and stripped on27th
guy who was mapping it said he had not heard engine sound like that before
ps see you have essentric shaft for sale
Title: eccentric shaft
Post by: rx7danny on June 27, 2012, 07:10:30 AM
[ATTACH]54920[/ATTACH]
there you go
by the roadside waiting for a tow
Title: eccentric shaft
Post by: fil_auto on June 28, 2012, 02:34:22 PM
That looks stunning Danny, sorry to hear about more probs, you could really do with out that!
PS: don\'t take it personally, someone just posted shortly after you and forgot to copy and paste the list, which is why I\'ve amended it and put your name back on the list :)

Phil
Title: eccentric shaft
Post by: rx7danny on June 28, 2012, 02:55:59 PM
cheers adam
and if it is the essentric shaft maybe jaydee will do a deal for dying man :-)
Title: eccentric shaft
Post by: JayDee on June 28, 2012, 08:03:30 PM
I have just dropped the price to £650, so let me know.
Title: eccentric shaft
Post by: rx7danny on July 05, 2012, 07:31:19 AM
front bearing destroyed itself
anyone have any ideas what could cause this
got strong oil pressure low temps etc
Title: eccentric shaft
Post by: bdarepat on July 11, 2012, 12:03:23 PM
Hi Danny,
Hope your treatment is all going well mate.
Any progress on this eccentric shaft issue?
Or can you give more details of what you have found on disassembly?
Thanks, Mike
Title: eccentric shaft
Post by: Brett on July 11, 2012, 12:11:13 PM
I\'ve just corrected the spelling of the thread :Giggle
Title: eccentric shaft
Post by: rx7danny on July 11, 2012, 02:05:49 PM
cheers buddy
spelling not my strongest
should be rebuilt in couple of weeks
rx8 shaft balanced rotors
another 1000 mile run in zzzzzzzzzzzzzzzzzzzzz
Title: eccentric shaft
Post by: clive on July 11, 2012, 08:58:33 PM
Danny, real sorry to hear you have had more problems.

Get the front pulley checked as I have known these to get bent and set up an imbalance in the engine.

This can happen when the gear box is pulled off and due to FD mounts being at the back the engine falls forward and can damage the pulley, I always used to wedge a wooden handled wire brush under the front pulley to stop any chance of this happening.
Title: eccentric shaft
Post by: rx7danny on July 12, 2012, 07:30:21 PM
the pulley is brand new dm motor sport
the front bearing just exploded
hopefully be finished for le mans trackday
Title: eccentric shaft
Post by: JayDee on July 18, 2012, 02:06:01 PM
How many miles had the engine done before this happening?
Title: eccentric shaft
Post by: rx7danny on July 18, 2012, 02:17:25 PM
not many but couple of trackdays
2000 maybe
rx8 shaft and rotors back from balancing
should rev to 10000
got be done for 3rd august le mans trackday
and 18th for god of pod
Title: eccentric shaft
Post by: fil_auto on July 18, 2012, 02:33:38 PM
nothing like a deadline, fairplay Danny :)