Gearbox oil

Watergypsy · 2016-12-20 22:51:57

Recently gearbox had become notchy, last week i could no longer select fourth without double clutching and crunching.
Reverse also began to crunch, fearing the worst, synchros etc i thought maybe change the gear oil may help! I dropped the oil which was black and only 800ml of it yikes 2ltr of 75/80 and problem cured which really suprised me but very happy big_smile

The oil was changed by myself 30k ago, and the box does leak ever so slightly but i didn't expect that much loss in two years. Any ideas as why the oil is black guys?

Casper · 2016-12-20 23:31:34

Interesting as my 4rth can be a bastard at time yet others its fine.

Watergypsy · 2016-12-21 00:16:02

Don't get me wrong it still feels like a 200k box so no fast changes but perfectly usable again, Probably worth changing oil then on yours then eh really easy on these old vans,

my conclusion on my oil been black is overheating due too not enough of it maybe

Casper · 2016-12-21 00:22:18

Watergypsy wrote:

Don't get me wrong it still feels like a 200k box so no fast changes but perfectly usable again, Probably worth changing oil then on yours then eh really easy on these old vans,
my conclusion on my oil been black is overheating due too not enough of it maybe

Aye. ill order oil on payday as i am selling the van come the end of February so dont want potential buyers thinking they need a new box. Is the drain hole an obvious square hole like most cars what a socket ratchet fits into?

Watergypsy · 2016-12-21 00:28:53

Regular old school bolt head pal, can't recall the size for sure but but around the 17mm mark i think refill about 20mm on end of box/diffferential

Casper · 2016-12-21 00:33:40

Watergypsy wrote:

Regular old school bolt head pal, can't recall the size for sure but but around the 17mm mark i think refill about 20mm on end of box/diffferential

Cheers. Plenty sockets. I may as well do oil and filter while i am at it. Cheap enough out euro car parts who will no doubt have another sale on come the 1st big_smile

Watergypsy · 2016-12-21 00:42:27

Easy up fella, you'll be spending half the vans value on servicing at this rate big_smile
Your northern, just tell em you changed it

Casper · 2016-12-21 00:45:32

Watergypsy wrote:

Easy up fella, you'll be spending half the vans value on servicing at this rate
Your northern, just tell em you changed it

Aye. Ill just clean the auld filter as i only put that in at the start of the summer. Top the oil up and all is good again. Seen 7 quid gear oil what made my ears prick up as well big_smile

Watergypsy · 2016-12-21 00:49:36

Lol, i was just kidding. £7 quid bargain i paid twice that

vaz2121 · 2016-12-21 00:58:12

I had a very faint whine on the 306 when in 3rd and was getting very notch y.......When checked I was lucky if there was a coffee mug's worth of oil in there....... Thinking I was on the hunt for a gearbox I filled up with 2 ltrs of 75/80 and put in some molyslip in the hope of giving me a little more breathing space .......... 50,000mls and 4 Spanish trips later the box is still working fine and it too has over 200,000 mls on it...... (Molyslip make the gearbox oil look filthy)

Watergypsy · 2016-12-21 01:05:18

How much molyslip mate? it's grease isn't it?

vaz2121 · 2016-12-21 01:15:37

Watergypsy wrote:

How much molyslip mate? it's grease isn't it?

There seems to be two types a 250ml bottle (Molyslip 2001G Gear Oil Supplement) and what I used which is the 65ml tube of grease..... seems to have worked OK for me.....really should put some in van also !

Watergypsy · 2016-12-21 01:25:43

Thanks for that, I'm hoping to nurse this old gal through at least another 100k after having replaced most of the running gear and suspension components

Watergypsy · 2016-12-21 01:34:01

Whilst your here do you have experience of any negatives of adding a little 2/ oil to the diesel.

vaz2121 · 2016-12-21 02:04:54

Watergypsy wrote:

Whilst your here do you have experience of any negatives of adding a little 2/ oil to the diesel.

I used to add 2 stroke oil to diesel tank back when low sulphur city diesel first came out and all the scare stories about pump damage due to lack of lubrication from the city diesel......
Haven't used 2stroke oil for long time...... Never had any probs don't think it did any harm.... but it was only about half bottle to full tank ...... If anything I thought engine seemed a little smother

I thought our 306 was a smoother when I used (Rapeseed oil) cooking oil and topped off about half the tank with diesel (306 has Bosch pump our van has Lucas pump)

Casper · 2016-12-21 11:53:50

I was also told the 2T helps prevent/reduce smoke on startup. Doubt i would use red 2T though if they still produce it just in case i get my tank dipped at the side of the road big_smile

Casper · 2017-01-02 14:56:27

Just remembered about this. In true cheap Jock style. Ordered

http://www.ebay.co.uk/itm/Triple-QX-MTF … Swux5YLVor

Casper · 2017-01-04 11:23:48

Forgot to say. That seller ^^ is actually Eurocarparts. Now if you think euro is cheap check out this shop

http://www.carparts4less.co.uk/?gclid=C … oCO6_w_wcB

This is also Eurocarparts

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#1 2016-12-20 22:51:57

Gearbox oil

#2 2016-12-20 23:31:34

Re: Gearbox oil

#3 2016-12-21 00:16:02

Re: Gearbox oil

#4 2016-12-21 00:22:18

Re: Gearbox oil

#5 2016-12-21 00:28:53

Re: Gearbox oil

#6 2016-12-21 00:33:40

Re: Gearbox oil

#7 2016-12-21 00:42:27

Re: Gearbox oil

#8 2016-12-21 00:45:32

Re: Gearbox oil

#9 2016-12-21 00:49:36

Re: Gearbox oil

#10 2016-12-21 00:58:12

Re: Gearbox oil

#11 2016-12-21 01:05:18

Re: Gearbox oil

#12 2016-12-21 01:15:37

Re: Gearbox oil

#13 2016-12-21 01:25:43

Re: Gearbox oil

#14 2016-12-21 01:34:01

Re: Gearbox oil

#15 2016-12-21 02:04:54

Re: Gearbox oil

#16 2016-12-21 11:53:50

Re: Gearbox oil

#17 2017-01-02 14:56:27

Re: Gearbox oil

#18 2017-01-04 11:23:48

Re: Gearbox oil

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