volvo f88

[pete_359]

greek:

pete 359:
hi all,
an iconic truck,i love em.me in mine 2004 anglo-scottish road run .

No full pics pete maybe you could keep me right is there a plate above the splitter / overdrive i still think it was refered to as overdrive

hi greek,
there was a green light that illuminated when overdrive was engaged.i will dig out my f88 album,there are plenty of pictures of it in there.
regards andrew.

[boris]

If you look at my 88 handbook here it says “overdrive lever”
viewtopic.php?f=35&t=38135

[greek]

Thanks boris , Now wheres that br250

[pdw]

hi , was robson drive standard on all 6x2 ? , also was headlamp wipers a option in uk or not available for uk market ? ,

[lb76]

Robson drive most certainly was not standard on the uk 6x2 models, as for headlamp wipers i dont know.
cheers
bill

[wheel_nut]

LB76:
Robson drive most certainly was not standard on the uk 6x2 models, as for headlamp wipers i dont know.
cheers
bill

I thought headlamp wipers only came with the twin headlight F10/12 series

[tonyhogi]

[zb]sake how many 88 posts are there!!

[bigr250]

greek:
Thanks boris , Now wheres that br250

I’m right here greek.

The word ‘overdrive’ in engineering terms referes to the output shaft of the gearbox turning faster than the imput shaft, hence “overdrive”. In the case of the F88 the “overdrive” was IN FACT a splitter as it SPLIT ‘in half’ each full gearchange and the 16 speed gearbox was called the SR62, which was explained previously as ‘S’ for SPLITTER & ‘R’ for rangechange. Whatever the little sign above the lever said.

Volvo could have used the word “overdrive” in the UK as it might be a term that some thick headed English drivers might understand as lots of English cars of the sixties & early seventies were fitted with overdrive, those with mechanical knowledge would already understand the difference.

I once owned a Transit with overdrive on the top 2 gears & with this 3rd overdrive was a higher ratio than 4th without overdrive, this wasn’t a splitter, but an OVERDRIVE!!

[wheel_nut]

bigr250:

greek:
Thanks boris , Now wheres that br250

I’m right here greek.

The word ‘overdrive’ in engineering terms referes to the output shaft of the gearbox turning faster than the imput shaft, hence “overdrive”. In the case of the F88 the “overdrive” was IN FACT a splitter as it SPLIT ‘in half’ each full gearchange and the 16 speed gearbox was called the SR62, which was explained previously as ‘S’ for SPLITTER & ‘R’ for rangechange. Whatever the little sign above the lever said.

Volvo could have used the word “overdrive” in the UK as it might be a term that some thick headed English drivers might understand as lots of English cars of the sixties & early seventies were fitted with overdrive, those with mechanical knowledge would already understand the difference.

I once owned a Transit with overdrive on the top 2 gears & with this 3rd overdrive was a higher ratio than 4th without overdrive, this wasn’t a splitter, but an OVERDRIVE!!

When we talk of overdrive, we are actually talking about altering the direct drive ratio. Direct drive is 1:1, in theory the most efficient ratio you can use. Everyone here has a car I presume, many will be 5 or 6 speed gearboxes, 4th gear will be direct drive, where 5th will be “Over 1:1 Ratio” “Overdrive”

Those of a certain age will remember the simple Eaton 2 speed axle, a separate air / electric solenoid operated gearbox mounted on the rear axle housing, they may remember the Triumph TR5 and others where they had “overdrive” on 2nd, 3rd & 4th gear. This was probably a good marketing tool but in reality all it did was give you 2 almost identical ratios, 3rd high and 4th (Direct Drive)

A 9 speed fuller is a range change box, a 13 speed is a 9 speed fuller with a splitter on high range. It doesn’t work on crawler, so the the 9 speed has only 4 useable ratios in high range.

The splitter on an F88 and DAF Ecosplit is rightly called because it splits in half, every gear, 4 low, 4 high, with each one being able to split again. We commonly call it a 16 speed box or a 13 speed box.

So calling it an overdrive box or calling it a splitter box is not wrong, just that a splitter box is more correct.

Go and get a workshop manual for your car, have a look at the transmission and final drive section, see which gear is 1:1 ratio, the ones above are “Overdrive”

[bigr250]

Wheel Nut:
So calling it an overdrive box or calling it a splitter box is not wrong, just that a splitter box is more correct.

Absolutely my ‘well read’ friend:) Except, when top gear high split has a ratio of 1-1, (or lower) then it can’t be called overdrive, just a splitter

Ross.

PS, shall we talk about the SR70 12 speed next, I could write for hours about the benefits of an epicyclic range change.

[pdw]

a few random pics from handbook

[boris]

[sugar_ray]

This was my old Girl, 290, 16speed, air wipers later converted to electric, with the blue and cream interior.

[greek]

bigr250 as a thick english driver i can see your explanation on splitters & overdrives correct & yes I used it as a splitter usualy on the top 4, but Volvo still refered to it as Overdrive which as a thick driver it would be the term I would use as in all the written information posted. So could you also conceed that as a thick English driver I am also correct.

[pete_359]

Sugar Ray:
This was my old Girl, 290, 16speed, air wipers later converted to electric, with the blue and cream interior.

hi,
this very 290,was owned from new by j+m transport in south wales,it was pictured with it’s sister 290 ghb 542n in the volvo f88 brochure .i gather 547n was torched in the east midlands years ago .
regards andrew.

[wheel_nut]

greek:
bigr250 as a thick english driver i can see your explanation on splitters & overdrives correct & yes I used it as a splitter usualy on the top 4, but Volvo still refered to it as Overdrive which as a thick driver it would be the term I would use as in all the written information posted. So could you also conceed that as a thick English driver I am also correct.

Or possibly the word splitter doesnt compute well in Google Translate, much like overdrive becomes överväxel or schnellgang.

[boyzee]

This is my old 1971 F88 and then this was exchanged for the then new 290.

[sammyopisite]

I had a 290 CCX 509S and as it was for tanker work the fuel tank was moved to the off side so as the drum hydraulics which were a new idea of a small hydraulic tank and a radiator were fitted at the near side as well as the air tanks and in all the photos of 290s I have never seen another with the fuel tank on the off side.

[bigr250]

greek:
So could you also conceed that as a thick English driver I am also correct.

Absolutely, 100% correct in calling it overdrive as stated & I’m sorry for the “thick” remark, I just felt that you’d baited me with the “where’s br250 gone” as if I’d run for the hills because I’d been proved wrong.

I do hope you can also spot the irony in these posts tho;

greek:

f88vol:
yes ur right there is a little badge that says overdrive on the top of the surround on the splitter lever

Thank you F88 thought my memory wasn`t playing tricks,Overdrive it will be then Not splitter

Then you ‘quote’ f88vol and say that overdrive it is then when he’d actually mentioned the plate on the “surround of the splitter lever”!! clearly calling it a “splitter”■■

Ross.

[jimski]

Hi all I always said it was a 16 speed, an 8 speed box with overdrive on every gear
R Jimski