SPendrey Posted April 28, 2023 Share Posted April 28, 2023 I spent last weekend in the Shropshire/Wales area, and was rather disappointed at how often I sat in first gear trying to climb steep (but normal) roads. I am running slightly larger than standard tyres (235/85/16) so appreciate there is a little extra power needed to maintain momentum, and the car is heavy (HD bumpers, steering guard, diff guards, winch, me!, recovery gear etc.). I'm not a fan of engine tweaks particularly, I don't want the black smoke sometimes seen, and the age of the engine (28 yrs) doesn't lend itself to additional pressure either. So, I'm considering a 1.2 to 1.4 transfer box change... I'm sure people have done this in the past and I'm looking for feedback, +ve or -ve experience on doing such a switch. The reason I'm unsure is 90% of the time I don't really see an issue, the car drives reasonably around town as is, so I want to get opinions on if this is really a worthwhile exercise? It is that 10% of the time when it is frustrating, even having to drop to low range for some particularly steep starts. Ta. Quote Link to comment Share on other sites More sharing options...
FridgeFreezer Posted April 28, 2023 Share Posted April 28, 2023 If you need to drop to 1st gear to get up a hill it's your engine not your transfer box... I know 200's are not fire breathing monsters but that sort of performance can't be right? 1 Quote Link to comment Share on other sites More sharing options...
Stellaghost Posted April 28, 2023 Share Posted April 28, 2023 Do a compression check, the engine may have lost compression over time so that your not noticing it for everyday driving, but the hills on your recent journey have highlighted an issue Regards Stephen 1 Quote Link to comment Share on other sites More sharing options...
steve b Posted April 28, 2023 Share Posted April 28, 2023 Check the rubber pipe from the turbo to the waste gate, and the other short bits - tee to turbo and tee to FIP boost. They live in a hot area and perish. If this has happened also check the boost "slider" that is controlled by the boost pin in the FIP is free to move. Check the intercooler for oily patches usually indicative of a leak. Steve Quote Link to comment Share on other sites More sharing options...
Snagger Posted April 28, 2023 Share Posted April 28, 2023 If it was not getting enough air in, you’d probably have black smoke already. I’d look at the boost pipe from turbo compressor housing to FIP as Steve mentioned above. I have also had similar issues from a split diaphragm in the FIP and a seized horizontal pin in the lower part of the hosing that runs against the sloping part of the boost pin on the diaphragm. That freed off with a pit of a push and responded well to lubrication. Quote Link to comment Share on other sites More sharing options...
ped Posted April 28, 2023 Share Posted April 28, 2023 i tried a 1.2 transfer box on my 110 and it was very gutless pulling away so i founr a discovery mpi transfer box that had the qt gears but was a 1.4 ratio and much better the 200 i'm rep;lacing was getting gutless on hills and with the trailer on but that is down to compression i think Quote Link to comment Share on other sites More sharing options...
Nonimouse Posted October 31, 2023 Share Posted October 31, 2023 My Engine is 30 years old, as is the vehicle. It's 2.3tonnes at the roadside, including all the kit you have hung on and in yours, apart from the bash plate. Added to which I carry extra recovery stuff. My engine isn't tuned, bar a tweak on the pin and 300/200 hybrid injectors. I run 235/85x16 tyres. The engine has about 150k on it - although it was sent off to the factory in it's life to be rebuilt, as it's a Gold Seal lump, with Unipart Stamp It's not rocket, but it eats hills for breakfast and I could pull a sixth gear on the motorway. Putting a 1.44:1 box in it would reduce the cruising speed and drivability of the vehicle I would suggest a damn good service. Check the injectors, check the fuel pump fuel pin chamber isn't full of oil (yes this happens). The injectors are an 80K mile service item. Are you running synthetic oil? If you are change it and run mineral oil - but good stuff Have you adjusted the turbo? It comes on song at 1800rpm with peak torque at 2,200 rpm if standard. Below 1800 rpm you are just a Direct Injection Diesel, no T. 2 Quote Link to comment Share on other sites More sharing options...
FridgeFreezer Posted November 1, 2023 Share Posted November 1, 2023 14 hours ago, Nonimouse said: My Engine is 30 years old... I feel like this post should be pinned, added to the tech archive, and printed out and waved at every 200TDi owner about to fit some performance mod to a 30-year-old engine that's never seen more than an oil change... because it seems to be the common way of doing it! Don't actually service / maintain the thing but when it gets tired just wind up the boost / fuel and call it done 2 Quote Link to comment Share on other sites More sharing options...
Nonimouse Posted November 1, 2023 Share Posted November 1, 2023 2 minutes ago, FridgeFreezer said: I feel like this post should be pinned, added to the tech archive, and printed out and waved at every 200TDi owner about to fit some performance mod to a 30-year-old engine that's never seen more than an oil change... because it seems to be the common way of doing it! Don't actually service / maintain the thing but when it gets tired just wind up the boost / fuel and call it done Amen to that Brother Fridge 1 Quote Link to comment Share on other sites More sharing options...
Snagger Posted November 1, 2023 Share Posted November 1, 2023 On 4/28/2023 at 10:27 PM, ped said: i tried a 1.2 transfer box on my 110 and it was very gutless pulling away so i founr a discovery mpi transfer box that had the qt gears but was a 1.4 ratio and much better the 200 i'm rep;lacing was getting gutless on hills and with the trailer on but that is down to compression i think That is a bad way of treating symptoms rather than cause and just introduces other bad performance issues. It is always more cost effective in the long term to get to the root of the real problem and fix the underlying fault (no, not the fact that it is a Tdi, John…😜). 1 Quote Link to comment Share on other sites More sharing options...
landroversforever Posted November 1, 2023 Share Posted November 1, 2023 7 minutes ago, Snagger said: That is a bad way of treating symptoms rather than cause and just introduces other bad performance issues. It is always more cost effective in the long term to get to the root of the real problem and fix the underlying fault (no, not the fact that it is a Tdi, John…😜). Treating symptoms rather than cause is a favourite of lots of the facebook mechanics 3 Quote Link to comment Share on other sites More sharing options...
FridgeFreezer Posted November 1, 2023 Share Posted November 1, 2023 3 hours ago, Snagger said: fix the underlying fault (no, not the fact that it is a Tdi, John…😜). Some conditions are just terminal... 2 Quote Link to comment Share on other sites More sharing options...
Nonimouse Posted November 1, 2023 Share Posted November 1, 2023 5 minutes ago, FridgeFreezer said: Some conditions are just terminal... Oddly enough, I have picked up a 3.9, with associated bits, to mothball until my village becomes an LEZ. But it's going to have a C A R B, not injection 1 Quote Link to comment Share on other sites More sharing options...
ped Posted November 5, 2023 Share Posted November 5, 2023 On 11/1/2023 at 10:08 AM, Snagger said: That is a bad way of treating symptoms rather than cause and just introduces other bad performance issues. It is always more cost effective in the long term to get to the root of the real problem and fix the underlying fault (no, not the fact that it is a Tdi, John…😜). i was used to a v8 my work 110 carries logs it is often like most arb trucks at max load carring capacityif it was a chelsea tractor type of landy then yes i agree with the loading and the tyre size of a 110 i was happy to keep it at the factory ratio but have the later cut gears 1 Quote Link to comment Share on other sites More sharing options...
ped Posted November 5, 2023 Share Posted November 5, 2023 On 11/1/2023 at 10:17 AM, landroversforever said: Treating symptoms rather than cause is a favourite of lots of the facebook mechanics i hope my above post clears up my choice of not over gearing a 33yr old working truck 1 Quote Link to comment Share on other sites More sharing options...
landroversforever Posted November 5, 2023 Share Posted November 5, 2023 9 hours ago, ped said: i hope my above post clears up my choice of not over gearing a 33yr old working truck I don’t see yours in anything like the same context @ped 1 Quote Link to comment Share on other sites More sharing options...
fmmv Posted November 5, 2023 Share Posted November 5, 2023 I think the OP specifically said he didn't plan to increase fuelling beyond stock. It sounds like a boost leak, maybe blocked fuel filter or struggling fuel pump or mis-timed pump or camshaft. 1 Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.