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Old 6 Jul 2017, 19:39 (Ref:3749344)   #2226
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Yes, a good incentive!

I must be off their email list as didn't enter Gilbert for the 6 this year....
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Old 6 Jul 2017, 22:36 (Ref:3749359)   #2227
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Originally Posted by Peter Mallett View Post
I know this may not be the right place but has anyone received an "invite" to enter the Barry Sidery-Smith memorial/celebration race at the 6hrs? We can make all sorts of guesses as to the reasoning but if I had the time I'd do it. Sadly I don't think I will.
Yes I've had the email and as I had a bad Summer classic (gearbox broke on lap 4) I'd jumps at it, but I'll be at Angouleme. Hey ho.
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Old 7 Jul 2017, 06:12 (Ref:3749387)   #2228
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Mike I guess your strawberries are red. I use this in my axle in W250 form, as you say it looks like a milkshake or smoothie. The mineral I get it from a groundhog… In your ZF do you use monogramed or multigrade?
David, is your gearbox issue related to the oil you use if I may ask?
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Old 7 Jul 2017, 17:10 (Ref:3749461)   #2229
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Tel 911S should be qualifying in the top 10 on the gridTel 911S should be qualifying in the top 10 on the grid
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Mike, as others I feel have to say "I know I shouldn't BUT" could you name a brand or viscosity please as to gearbox oil please? Not as an advert but like a conversation between fans ya no… OK, some who post here from time to time might argue its a recommendation ! But obviously it won't be! Na !

Many years ago , when I was running a turbo car on International rallies , I found an oil which I though was a big step forward in Lubricants for gearboxes .
Good for the Sychro,s on a Gp N box , and could take the loading of a large power increase .
Silkolene SRG75 . Now rebranded [ I believe ] as Fuchs Titan SRG75 .

Talking to a race preparer I know recently , he also said that he only runs SRG75 in his classic race cars gearboxes .

Perhaps a bit expensive for ordinary road use , but I think well worth it for what it does .
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Old 7 Jul 2017, 17:29 (Ref:3749463)   #2230
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Good info thabks for that. Our MGB gearbox needs a rebuild so I'll mention that to Ken.
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Old 7 Jul 2017, 18:58 (Ref:3749472)   #2231
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.........
David, is your gearbox issue related to the oil you use if I may ask?
Don't think so, I've run my A series ribcase boxes on Mobil 1 for years and never had problems. It simply and suddenly refused to go into 4th, haven't explored why yet. I suspect the main reason was that for the first time in 15 years I didn't carry the spare box with me! Tempting fate and all that....
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Old 7 Jul 2017, 19:34 (Ref:3749478)   #2232
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delta has a real shot at the podium!delta has a real shot at the podium!delta has a real shot at the podium!delta has a real shot at the podium!delta has a real shot at the podium!
we have had a very expensive FJ engine built and the engine builder is insisting we use Joe Gibbs . Who the f--k is he .
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Old 7 Jul 2017, 19:44 (Ref:3749480)   #2233
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delta has a real shot at the podium!delta has a real shot at the podium!delta has a real shot at the podium!delta has a real shot at the podium!delta has a real shot at the podium!
Anyway enough of all this motor sport let's hope the chasmatic Italian beats the Birmingham Scotsman at Wimbledon
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Old 7 Jul 2017, 20:02 (Ref:3749482)   #2234
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Good info thabks for that. Our MGB gearbox needs a rebuild so I'll mention that to Ken.
As mentioned several posts ago- I'm happy to be proved wrong but was told years ago by specialists that 'B' boxes need 20W/50 Mineral for the synchro to work. I ignored them and tried something like the stuff Tel 911S suggests and the change was rubbish!

'Joe Gibbs Driven Racing Oil' - http://www.drivenracingoil.com
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Old 7 Jul 2017, 20:03 (Ref:3749483)   #2235
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Anyway enough of all this motor sport let's hope the chasmatic Italian beats the Birmingham Scotsman at Wimbledon
He didn't....
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Old 7 Jul 2017, 20:13 (Ref:3749485)   #2236
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John Elwin should be qualifying in the top 5 on the gridJohn Elwin should be qualifying in the top 5 on the grid
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He didn't....

Wot's that all about?

Did you see the closest-ever finish on today's Tour de France stage? Bet that had Baub jumping up & down.

...and to link it to classics, at one point three 2CV's were doing what they were designed for & racing across a field parallel with the Pelethon.
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Old 7 Jul 2017, 20:35 (Ref:3749489)   #2237
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justracing should be qualifying in the top 10 on the gridjustracing should be qualifying in the top 10 on the grid
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He didn't....
Gave him a run for his money though and he was highly entertaining with his latin temperament
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Old 7 Jul 2017, 20:40 (Ref:3749492)   #2238
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As mentioned several posts ago- I'm happy to be proved wrong but was told years ago by specialists that 'B' boxes need 20W/50 Mineral for the synchro to work.
Same with the Jaguar boxes plus I was told by the bloke that does all our boxes that the overdrives need 20-50 as it gives them more pressure.
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Old 8 Jul 2017, 00:03 (Ref:3749514)   #2239
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We use 20/50 in MG and all the Jag boxes . Unless you are running a Dog box 🤐
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Old 8 Jul 2017, 05:59 (Ref:3749539)   #2240
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See this post from Gerard on the 6th. Think that is it in a nutshell....
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Originally Posted by Gerard C View Post
Rather often, people go for expensive oils before wondering what would be the best choice for classic gearboxes/ engines. If you're using brass synchromesh in the gearbox mineral seems better than the "modern" stuff.
John- Yes, that was some close photo finish in the TdF yesterday!
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Old 8 Jul 2017, 08:10 (Ref:3749552)   #2241
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Thank you delta but dog engagement boxes are not allowed in our category. I dont use the short shifter either to preserve the internals. I wish I could find steel synchs but seems impossible to find the reference. When hot the move from 3 to 4 is unpredictable even with new parts. Box is said 3 rails, 4 speed but not the Bullet one.
Mike I'll try again mineral. I know some improve the lubrification but in France there are few good specialists. Same for axles.
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Old 8 Jul 2017, 14:28 (Ref:3749593)   #2242
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Tel 911S should be qualifying in the top 10 on the gridTel 911S should be qualifying in the top 10 on the grid
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Thank you delta but dog engagement boxes are not allowed in our category. I dont use the short shifter either to preserve the internals. I wish I could find steel synchs but seems impossible to find the reference. When hot the move from 3 to 4 is unpredictable even with new parts. Box is said 3 rails, 4 speed but not the Bullet one.
Mike I'll try again mineral. I know some improve the lubrification but in France there are few good specialists. Same for axles.
http://www.burtonpower.com/steel-syn...n-gb2e502.html

Should be a link for steel baulk rings .
I don,t like them myself & would always use the brass ones .
Ones of the main factors in getting the selector to work right & not break baulks is to get the hubs correctly spaced on the mainshaft without too much endfloat .Although it is not always easy to get the different thickness shims .

I have been told by others that both Quaife & Tran X now recommend SRG 75 oil as the one to use in their boxes .
But it might be worth checking with them what they think is the best oil .
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Old 8 Jul 2017, 14:35 (Ref:3749594)   #2243
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http://www.burtonpower.com/steel-syn...n-gb2e502.html

Should be a link for steel baulk rings .
I don,t like them myself & would always use the brass ones .
Ones of the main factors in getting the selector to work right & not break baulks is to get the hubs correctly spaced on the mainshaft without too much endfloat .Although it is not always easy to get the different thickness shims .

I have been told by others that both Quaife & Tran X now recommend SRG 75 oil as the one to use in their boxes .
But it might be worth checking with them what they think is the best oil .
Bit of extra info .
The link is for 1/2 hub baulk . Go to bottom of page for 3/4 hub baulks .
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Old 8 Jul 2017, 15:38 (Ref:3749601)   #2244
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Wot's that all about?

Did you see the closest-ever finish on today's Tour de France stage? Bet that had Baub jumping up & down.

...and to link it to classics, at one point three 2CV's were doing what they were designed for & racing across a field parallel with the Pelethon.
The Tour has two cameras positioned on the finish line that takes 10,000 frames per second (Yes! Ten thousand) so picking out a winner by a gnats whisker of a nano second is possible. Daft I call it.
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Old 8 Jul 2017, 17:03 (Ref:3749617)   #2245
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Thank you for taking care Tel911S. Those baulk rings might fit I'll try. I can't remember if there is a possibility to adjust space via shims. If I'm right, Quaife and Trans are now the same company and can't be wrong. Change oil of the Type5 gearbox is tricky because the drain plug is not located at the lowest point of the case. In addition, I dont recommend to "loose" anything inside - small spring for instance- because there is a very strong built in magnet located at the lowest point!! Before saying experience sometimes you may say s..t!
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Old 8 Jul 2017, 17:11 (Ref:3749619)   #2246
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Robert this kind of luxe de précaution helped very recently and prevented from ex-aequo. But if your point means that both deserved to win its fine for me. How do they all manage to be that fast with the outside temps we have now? The cornering abilities of a bicycle are not fantastic, in the descents you can read speeds like 90 kph rather often. So chapeau bas lot of respect to them.
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Old 8 Jul 2017, 18:39 (Ref:3749641)   #2247
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Tel 911S should be qualifying in the top 10 on the gridTel 911S should be qualifying in the top 10 on the grid
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Thank you for taking care Tel911S. Those baulk rings might fit I'll try. I can't remember if there is a possibility to adjust space via shims. If I'm right, Quaife and Trans are now the same company and can't be wrong. Change oil of the Type5 gearbox is tricky because the drain plug is not located at the lowest point of the case. In addition, I dont recommend to "loose" anything inside - small spring for instance- because there is a very strong built in magnet located at the lowest point!! Before saying experience sometimes you may say s..t!
The " shimming " was originally by different thickness " C " clips which held the gear hubs onto the mainshaft .
These have became very difficult to get now , so in the past I have had washers machined to fit onto the shaft because it is important to reduce the endfloat of the gearhubs to make the gearchanges work OK .



PS .
I hope we don,t get into trouble with Bauble for talking about cars on his birthday thread ?
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Old 8 Jul 2017, 18:59 (Ref:3749645)   #2248
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it is important to reduce the endfloat of the gearhubs to make the gearchanges work OK.
This we didn't do! And because of the mandatory 4 speed gearbox, we use often the first gear hence the first baulk ring to be wrecked. Yes the hubs move very freely, probably too much. We're lucky because this box is genuinely tough.
Dont worry for the birthday it will be mine pretty soon too!
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Old 8 Jul 2017, 19:38 (Ref:3749650)   #2249
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Tel 911S should be qualifying in the top 10 on the gridTel 911S should be qualifying in the top 10 on the grid
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This we didn't do! And because of the mandatory 4 speed gearbox, we use often the first gear hence the first baulk ring to be wrecked. Yes the hubs move very freely, probably too much. We're lucky because this box is genuinely tough.
Dont worry for the birthday it will be mine pretty soon too!

It is not easy to describe without having the gearbox to work with .
But with the gearbox assembled & the top cover off , looking at the mainshaft from above , each baulk ring should only move a very small amount before it grips the taper of the gear next to it .
If there is a lot of clearance before it grips , then the gearchange into that gear will be difficult , & eventually the baulk ring will break .
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Old 8 Jul 2017, 21:19 (Ref:3749659)   #2250
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You're perfectly clear, thanks again. I can only blame myself because its the kind of alteration we use to make on the Honda bikes gearboxes in period, using what we call "clinquant" meaning sometimes cans of soda or other beverage…
From what I read here, many send their gearbox to a renown specialist. I'll try to find one or will cross the Channel again.
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