oneandtwo Posted March 8, 2015 Share Posted March 8, 2015 The coolant tank cap on my older standard 300tdi 90 just touches the underside reinforcing of the replacement td5 bonnet and prevents it from sitting squarely when closed. Rather than cutting away the bonnet reinforcement, If I made some brackets and lowered the coolant tank 10mm then it would clear the bonnet - is there any downsides to doing this? I think the coolant tank sits lower than the actual coolant level of a 300tdi anyway. Quote Link to comment Share on other sites More sharing options...
mmgemini Posted March 8, 2015 Share Posted March 8, 2015 That is very dangerous. The header tank on the 300Tdi is too low to start with. Let's see if you do run into coolant problems.. Quote Link to comment Share on other sites More sharing options...
steve b Posted March 8, 2015 Share Posted March 8, 2015 That's a bit strong Mike ? surely if the correct fill/top-up procedure is followed it will make no difference as once the system is full and sealed it will just circulate as normal . cheers Steveb Quote Link to comment Share on other sites More sharing options...
mmgemini Posted March 8, 2015 Share Posted March 8, 2015 Hmmm Steve. I would rather see the header tank higher up than Land Rover fitted. Not everybody follows the correct fill proceedure. The biggest problem with the 300Tdi is the height of the water pump. Should the header tank run dry. No coolant at the water pump. Quote Link to comment Share on other sites More sharing options...
Eightpot Posted March 8, 2015 Share Posted March 8, 2015 I think the way round it would be to lower it 10mm then make sure to keep the coolant level higher than normal- a cm should work out ok I'd think. Quote Link to comment Share on other sites More sharing options...
steve b Posted March 8, 2015 Share Posted March 8, 2015 I totally agree about the waterpump position on the 300 , bloody stupid design for something that could be seen as industrial/agri with the many roles a land rover could be in . Is the fill procedure in the tech archive in it's own right ? I've described it a few times now within various threads. @ eightpot - the level in the header tank allows for fluid expansion under heat so I'd leave it where it should be and just lower the tank to suit cheers Steveb Quote Link to comment Share on other sites More sharing options...
GW8IZR Posted March 8, 2015 Share Posted March 8, 2015 whilst its not the best design idea (and I mounted mine a bit higher) maybe 10mm isnt too much to worry about, after all the difference in camber of the road is probably more than that. I'd be more worried about occasional contact of the bonnet to the tank and potential crack / damage / leak / bang.... Quote Link to comment Share on other sites More sharing options...
ejparrott Posted March 8, 2015 Share Posted March 8, 2015 Can you not just move it sideways? Quote Link to comment Share on other sites More sharing options...
Dave W Posted March 8, 2015 Share Posted March 8, 2015 As above, moving it sideways will clear the bonnet, I made some spacers (about 20mm IIRC) from some tube to go between the wing top and the expansion bottle for the two top mounting bolts. That way you maintain the original height. Quote Link to comment Share on other sites More sharing options...
GW8IZR Posted March 8, 2015 Share Posted March 8, 2015 yes by doing that you can actually raise it a bit which is what I did, but thats an LT77/300TDI so I dont know if you have room on a factory 300tdi. Quote Link to comment Share on other sites More sharing options...
Litch Posted March 8, 2015 Share Posted March 8, 2015 I recently had this problem on my 300TDi when I fitted a Puma bonnet. I was using an Allisport alloy header-tank and noticed that the internal structure of the Puma bonnet was much greater (especially around the edge) and there was no-way the bonnet was going to fit with the tank in the normal position. I was not happy with the idea of lowering the tank so I bought some SS long nuts (all my fixings are SS) and along with an extended support bracket, I moved the header-tank in by something like 25mm which means it neatly cleared the underside of the bonnet. For a completely unrelated purpose, earlier today I removed the Allisport header-tank and re-fitted the OE one which sits in the same place. At first glance you wouldn't know that the tank has been moved. Quote Link to comment Share on other sites More sharing options...
Scotts90 Posted March 8, 2015 Share Posted March 8, 2015 I moved my 200tdi one out by about 20mm to clear the internal bracing on the td5 bonnet, the cap sits nicely in a recess now. Quote Link to comment Share on other sites More sharing options...
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