Search found 974 matches

by Jonathan Lewis
Wed Jan 31, 2018 3:51 pm
Forum: General Triumph Problems
Topic: Windscreen trim
Replies: 8
Views: 1628

Re: Windscreen trim

I'm not sure that S-T actually offered this tool as a ready-made item, and not aware of anyone else doing so either... They are, however, easy enough to make using a piece of stiff, heavy-gauge wire fixed into a file handle or, if you already have one of those windscreen trim tools with interchangea...
by Jonathan Lewis
Thu Jan 11, 2018 1:44 pm
Forum: Engine
Topic: Radiator cap mod
Replies: 13
Views: 1196

Re: Radiator cap mod

WCR set-up as photographed on XJB 304H at Gaydon in 2010. WCR Cooling Setup.jpg As Andy points out, the WCR cars do indeed have a small bonnet blister to clear the revised thermostat housing and filler cap, though I have been told that this was necessitated by the engines being mounted slightly high...
by Jonathan Lewis
Wed Jan 10, 2018 11:28 pm
Forum: Engine
Topic: Radiator cap mod
Replies: 13
Views: 1196

Re: Radiator cap mod

I believe that the World Cup Rally 2.5PIs were modified along the lines described. Page 255 of Bill Price's book has a picture of the engine bay of what I think is the WCR test car (WRX 902H) with a filler cap on a modified thermostat housing and the filler port on the radiator blanked-off, but with...
by Jonathan Lewis
Sun Apr 23, 2017 11:59 am
Forum: Engine
Topic: Too much oil
Replies: 6
Views: 893

Re: Too much oil

There is one good reason for a mildly overfilled sump with the engine not running, and that is if you have an engine oil cooler fitted. This is to make allowance for the extra oil needed to fill the additional pipework, at least some of which tends to drain back once the engine is switched-off. If y...
by Jonathan Lewis
Mon Apr 10, 2017 8:11 pm
Forum: Engine
Topic: Fuel cooling pipe
Replies: 9
Views: 1042

Re: Fuel cooling pipe

You're welcome :) As far as I'm aware, Bosch pumps don't have a reputation for overheating, hence my wondering if it is an electrical problem with ignition or the supply to the pump. Your problem could be due to fuel vapour-locking but, if so, I suspect that the issue is more likely to be with a clo...
by Jonathan Lewis
Sun Apr 09, 2017 5:57 pm
Forum: Engine
Topic: Fuel cooling pipe
Replies: 9
Views: 1042

Re: Fuel cooling pipe

Hi Alec, I seem to remember from experience with a length of transparent plastic pipe in the return line from the PRV that the fuel stream going through was liquid rather then spray, but interspersed with a lot of bubbles; presumably pockets of vapour resultant from the pressure drop effect as the s...
by Jonathan Lewis
Sun Apr 09, 2017 12:53 pm
Forum: Engine
Topic: Fuel cooling pipe
Replies: 9
Views: 1042

Re: Fuel cooling pipe

It shouldn't matter if the tank is full or not as it uses the refrigeration principle of releasing the pressure of a liquid causeing it to cool, that is why it is connected into the pressure relief valve discharge to the petrol tank. Fair point, Alec, but the heat that the returned fuel is taking o...
by Jonathan Lewis
Sat Apr 08, 2017 9:24 am
Forum: Engine
Topic: Fuel cooling pipe
Replies: 9
Views: 1042

Re: Fuel cooling pipe

From memory, the Bosch pump units are of smaller diameter than the motor body on the Lucas pump, so a cooling coil intended for Lucas PI may not readily fit. Secondly, the construction of the Bosch pump is such that the motor (what you're trying to cool on the Lucas pump with the cooling coil) is ef...
by Jonathan Lewis
Wed Mar 29, 2017 7:30 am
Forum: General Triumph 2000 Discussion
Topic: Pi Fuel Pumps
Replies: 5
Views: 1036

Re: Pi Fuel Pumps

You're most welcome - and glad to hear that you seem to have got your problems sorted :D FWIW, I'm still running a Lucas pump and quite happy with it, albeit with a few mods to the installation layout to address some of the known weaknesses. And yes, 'swirl pot' is the terminology I was looking for ...
by Jonathan Lewis
Tue Mar 28, 2017 9:16 am
Forum: General Triumph 2000 Discussion
Topic: Pi Fuel Pumps
Replies: 5
Views: 1036

Re: Pi Fuel Pumps

If wanting to migrate away from Lucas, I think that your options are largely restricted to Bosch or one of the generic replacements (Sytec?). Some research a few years back found suggestions of a Pierburg unit capable of maintaining the pressures and flow rates demanded by the Lucas PI system, but I...