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notchy gearbox at startup ??

Gizmo73
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Gizmo73 Proficient

Gizmo73

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Posted

Hey All..

When the car is started cold (as in first thing in the morning, on the way home from work), the first few changes from 1st to 2nd crunch a tiny bit...

However it always disappears after about 3-4 mins...

Anything to worry about ?? Regaular occurance ??

:confused:

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https://www.sau.com.au/forums/topic/33350-notchy-gearbox-at-startup/
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benm Grand Master

benm

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Posted
When did you last change your gear oil?

You might need to change it with better quality oil. I have a rough gearbox too, i'm thinking of buying the Redline stuff to put in my gearbox. Should cure the roughness.

12mths ago I changed my oil and put in the Redline Shockproof oil ($100) and it made a massive difference, 500% better.

Its starting to get alittle rough again now so I might need to do it again.

unwritten law Proficient

unwritten law

Posted
Posted

mine is notchy when cold too... my gearbox has been rebuilt apparently, but i think its on its way out again... i tend to grind when giving it heaps... i suppose there is no use in having teeth if ur not gonna clean em hehehe....

will give the redline stuff ago soon, hopefully that makes a difference

benm Grand Master

benm

Posted
Posted

Me?

I think you might have the wrong Ben. Still got a standard turbo (and will for alot longer, plenty more mods to get power out of the old girl yet) and no issues with my boost controller

:wassup:

silver33 Contributor

silver33

Posted
Posted

I have been told that the Redline Shockproof stuff is good initially but could prematurely ruin a perfectly good gearbox. It's made for racing conditions. Cars used in racing conditions usually get their gearbox's rebuilt after a race. Thus using it in a daily driven vehicle may prematurely destroy the gearbox.

Don't know how true this is, but it's something to be weary of.

JimX Grand Master

JimX

Posted
Posted
I have been told that the Redline Shockproof stuff is good initially but could prematurely ruin a perfectly good gearbox. It's made for racing conditions. Cars used in racing conditions usually get their gearbox's rebuilt after a race. Thus using it in a daily driven vehicle may prematurely destroy the gearbox.  

Don't know how true this is, but it's something to be weary of.

Did you get told any reason why it would prematurely wear out your gearbox? Knowing what I do about gearboxes and oils, I can't really see anything about Redline that would cause this. Redline is designed to reduce the shock loading between the gears, so if anything it should extend your gearbox's life no matter what the conditions.

But if you have a source, I'd be happy to see the reasons.

(B1) MR_fanny Grand Master

(B1) MR_fanny

Posted
Posted

my gearbox crunches in 2nd and 3rd and 5th....thats rite 5th when i give it stick!! i have changed my oil too with the castrol stuff and noticed no difference. mechanic said it was the actuall ball at the end of the gearstick shaft thats rooted.....savin up for a quick shift kit now.:worship:

Busky2k Veteran

Busky2k

Posted
Posted

JimX, altho I cannot find the webpage anymore, I read an oil analysis comparison of Mobil 1 and Redline Shookproof in an S2000 gearbox. The Redline had a zillion times more wear metal in it compared to the Mobil 1 for the same length oil change intervals...

JimX Grand Master

JimX

Posted
Posted
JimX, altho I cannot find the webpage anymore, I read an oil analysis comparison of Mobil 1 and Redline Shookproof in an S2000 gearbox. The Redline had a zillion times more wear metal in it compared to the Mobil 1 for the same length oil change intervals...

You can't find it? I did a Google on "s2000 redline mobil" and it was the first result :worship:

Well it seems you were right. This is about diffs and not boxes but the same principle applies. I would still be interested to know why this happens though. I think I'll be dumping my Redline oil in the near future and getting some Mobil.

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