Turbocharger Posted July 27, 2006 Share Posted July 27, 2006 If you lift the edge of the diaphragm and peer into the depths below, can you see the follower resting on the cone of the diaphragm shaft? If so, does it move with the cone when you push the diaphragm up and down? How far does the diaphragm travel up and down? Quote Link to comment Share on other sites More sharing options...
white90 Posted July 27, 2006 Share Posted July 27, 2006 turn the diaphram anti clockwise till it comes out this will push the pin back into its housing Quote Link to comment Share on other sites More sharing options...
Gromit Posted July 27, 2006 Author Share Posted July 27, 2006 If you lift the edge of the diaphragm and peer into the depths below, can you see the follower resting on the cone of the diaphragm shaft? If so, does it move with the cone when you push the diaphragm up and down? How far does the diaphragm travel up and down? What I've done is unbolt the diaphragm from the plunger and removed the spring so I can see what's going on. That said, I couldn't see the follower. I thought it would be below the part of the pump I've opened. Is the follower below the star wheel? The plunger moves up and down about 10-15mm at a guess. It is being stopped very solidly at top of its travel. The plunger moves up and down and rotates with no resistance at all. White90, i've tried every combination of turning and wiggling and it won't come out. Quote Link to comment Share on other sites More sharing options...
Turbocharger Posted July 27, 2006 Share Posted July 27, 2006 On the diaphragm shaft there's a cone as shown in the ORRP thread referenced on the previous page - I've stolen some photos here: The top photo shows what a much blurrier version of your diaphragm should look like. Apart from a slight lip at the bottom of the cone, it should lift straight out. Never mind. The bottom photo shows what you can see some of by peeling the diaphragm back. On the RHS of the photo you can't see (in the photo) a finger of wire which follows that cone as the boost increases. If that finger is missing or siezed, you won't get any extra fuel per psi of boost so poor performance. It sounds like the diaphragm travels about the right distance so I'd suggest that finger is missing, bent or siezed somehow. It should be acting on the cone part of the shaft. Quote Link to comment Share on other sites More sharing options...
Gromit Posted July 27, 2006 Author Share Posted July 27, 2006 The bottom photo shows what you can see some of by peeling the diaphragm back. On the RHS of the photo you can't see (in the photo) a finger of wire which follows that cone as the boost increases. Ahh right, got you. I'll have a re-goo at it this evening. I might have got a digicam from work, so I'll try and post some photies......... Quote Link to comment Share on other sites More sharing options...
Turbocharger Posted July 27, 2006 Share Posted July 27, 2006 Better photo of the FIP with the diaphragm removed (credit to TuffRR on Outerlimits for taking one in focus!) but that said, I still can't see the cam follower in it. Quote Link to comment Share on other sites More sharing options...
Gromit Posted August 14, 2006 Author Share Posted August 14, 2006 Just an update on this. I took the FIP off to my local Bosch specialist last week and I've just got it all back together. After having replaced the injectors (made a very small diference) and the lift pump (which made no difference at all), with the new injection pump the difference is AMAZING! I'd say the pump never fuelled on boost as long as I've had the truck. There was a huge amount of corrosion in the pump. The turbo actually does something now, rather than just making a bit of noise!. It'll pull 70mph up hills, with something in reserve and does at least 85 on the flat. I am a happy bunny Quote Link to comment Share on other sites More sharing options...
Guest diesel_jim Posted August 14, 2006 Share Posted August 14, 2006 Excellent news! B) what did they charge for the pump overhaul? Quote Link to comment Share on other sites More sharing options...
western Posted August 14, 2006 Share Posted August 14, 2006 I am a happy bunny thats good news, don't fiddle with it again & surely your a dog not a fluffy bunny Quote Link to comment Share on other sites More sharing options...
Gromit Posted August 14, 2006 Author Share Posted August 14, 2006 Excellent news! B) what did they charge for the pump overhaul? I can't quite believe it. I really has changed the LR experience. Cost me 240 euro for the overhaul. Don't know how that compares to UK prices, but its nice and shiny. Quote Link to comment Share on other sites More sharing options...
western Posted August 14, 2006 Share Posted August 14, 2006 I can't quite believe it. I really has changed the LR experience.Cost me 240 euro for the overhaul. Don't know how that compares to UK prices, but its nice and shiny. Thats pretty good, my pump rebuild was nearly 400 quid Quote Link to comment Share on other sites More sharing options...
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