Diesel_90 Posted November 10, 2006 Share Posted November 10, 2006 Im about to chamge my trans case on my 90 to a 1.4 because apparantly i have a 1.6 on at the moment and its far to low. where does it say on the case the ratio? lying on my back ive looked to the left of the drum, under the blaking plate for a over drive and i cant see anything Quote Link to comment Share on other sites More sharing options...
miketomcat Posted November 10, 2006 Share Posted November 10, 2006 Im about to chamge my trans case on my 90 to a 1.4 because apparantly i have a 1.6 on at the moment and its far to low. where does it say on the case the ratio?lying on my back ive looked to the left of the drum, under the blaking plate for a over drive and i cant see anything normally 90's have a 1.44:1 ratio 110's a 1.41:1 and discos/rangeys 1.22:1 200tdi onwards its on a sticker on the lower edge of the rear face of the transfer box just to the left of the drum looking fowards i have a feeling they may have put a 1.6:1 in either turbo diesels and or series but i'm not sure on that failing that if you put it in 4th gear high range (this should be 1:1) with the ignition off and roll it forwards you can see how many times the crank goes round hope this helps mike Quote Link to comment Share on other sites More sharing options...
Hybrid_From_Hell Posted November 10, 2006 Share Posted November 10, 2006 If memory serves they are in one of 2 places. Either to the left of the handbrake (where you hacve looked now ?, or (and worse) Top lHS of the casing, which means torch and mirro and rag petrolly soaked having had a wipe in vain / hope / again to have a lookie. Bet I know which one yours in going to be. I think earlier ones are on top, later at the bottom / handbrake ? Happy grumbling looking Nige Quote Link to comment Share on other sites More sharing options...
Guest diesel_jim Posted November 10, 2006 Share Posted November 10, 2006 As Miketomcat says, there should be a yellow sticker stating "4wd 1.?:1 ratio" depending on what flavour yours is. some of the early utility 2.5 N/A diesels had the 1.6 fitted. Go here to the ever informative Ashcrofts site to see the ratio comparisons between various transfer boxes, And here to see what ratio box you have, IF you can find the suffix number stamped on it somewhere! Quote Link to comment Share on other sites More sharing options...
western Posted November 10, 2006 Share Posted November 10, 2006 You can see it's location in this picture if it's not there, it's most likely fallen off. Quote Link to comment Share on other sites More sharing options...
Paul Humphreys Posted November 10, 2006 Share Posted November 10, 2006 Im about to chamge my trans case on my 90 to a 1.4 because apparantly i have a 1.6 on at the moment and its far to low. where does it say on the case the ratio?lying on my back ive looked to the left of the drum, under the blaking plate for a over drive and i cant see anything I could have shown you last week But remember I want the 1.6 Paul Quote Link to comment Share on other sites More sharing options...
Diesel_90 Posted November 13, 2006 Author Share Posted November 13, 2006 the stickers missing off mine but im 95% sure its a 1.6. its pushing 55-65 in 5th with the 35s Quote Link to comment Share on other sites More sharing options...
Bull Bar Cowboy Posted November 13, 2006 Share Posted November 13, 2006 Something doesn’t sound right about that, In 5th gear, with 35’s and std diffs 1.4 will give you 27.24mph / 1000rpm & a 1.6 will give you 23.83mph / 1000rpm. Maybe you have a 1.4 and the engine is just running out of steam in 5th ? With std diffs and those tyres 5th just becomes an overdrive ! HTH Ian Quote Link to comment Share on other sites More sharing options...
Diesel_90 Posted November 13, 2006 Author Share Posted November 13, 2006 the engine has got plenty of power, thats why im fitting a 1.4 because the engine is just reving flat out on the road i have got my figures from the speedo in the dash, next time i go out in it i will take the gps thingy Quote Link to comment Share on other sites More sharing options...
Bull Bar Cowboy Posted November 13, 2006 Share Posted November 13, 2006 Assuming revving flat out is 4000rpm (not unreasonable for a diesel) 1.6 on std diffs & 35’s will theoretically give 95.34mph @4000 rpm……….. but there is no way a standard 300tdi would be able to pull gearing that tall. If the diffs have been changed, then, 1.6 on 4.1 diffs & 35’s will theoretically give 82.32mph @4000 rpm 1.6 on 4.7 diffs & 35’s will theoretically give 71.81mph @4000 rpm The only other option is that your clutch may be slipping Ian Quote Link to comment Share on other sites More sharing options...
Bull Bar Cowboy Posted November 13, 2006 Share Posted November 13, 2006 echo echo .. ........ double post deleted Ian Quote Link to comment Share on other sites More sharing options...
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