Mo Murphy Posted January 9, 2011 Share Posted January 9, 2011 Afternoon chaps. Spot of bother getting the power steering pump pulley lined up with the crankshaft pulley. A bit of background first so that you have the full story. This is a Disco/RRC 200 Tdi that has been converted to Defender spec. On the front is the defender timing chest assy and the Defender crankshaft 3 pulley assy. The power steering pump is the original one that was on the engine in it's disco spec and has a double pulley bolted to the front. I've modified the casing so that the low pressure inlet is at the back rather than sticking out the side. The pump is bolted to a Defender adjusting plate which is in turn bolted to the pukka Defender power steering/alternator bracket bolted to the block. The problem is that the crankshaft pulley and the power steering pulley don't line up, the PS pulley being about 5mm too deep on the PS pump shaft. The centre of the V is about 34mm from the front face of the adjusting plate. My question is that is this just a pulley problem that can be resolved with a Defender single pulley or is there some deeper difference with the discovery PS pump and if it is, is there a way round it ? Your thoughts, Gentlemen, would be most welcome. TIA Mo Quote Link to comment Share on other sites More sharing options...
western Posted January 9, 2011 Share Posted January 9, 2011 possibly the Defender PAS pump's NTC9070 & NTC8287 have a slightly longer nose than the Disco PAS pump NTC8288, &/or the attachment bracket/adjuster plates sit in a slightly different place. with 5mm longer bolts you could have a 5mm thick spacer made & fit it between the PAS shaft & pulley faces to get the pullies o align. or spend more cash to change the PAS pump & hoses to Def 200Tdi item. Quote Link to comment Share on other sites More sharing options...
LandyManLuke Posted January 9, 2011 Share Posted January 9, 2011 Have you taken the pulley off? It would be interesting to see if the flange is the same. I'll try and dig some photos out of my Defender 200tdi when I changed the pump. Quote Link to comment Share on other sites More sharing options...
western Posted January 9, 2011 Share Posted January 9, 2011 far as microcat shows Defender PAS pumps have a triabgular pulley boss, whereas Disco PAS pump has a circular boss.possibly the Disco boss is a bit thinner front to back too. there's a PAS pump comparison thread in our tech archive ith photo's of the various pumps/part numbers. Quote Link to comment Share on other sites More sharing options...
Mo Murphy Posted January 9, 2011 Author Share Posted January 9, 2011 Luke, You can see it in this photo, if thats any good. If not I'll go and take a square on picture. Cheers Mo Quote Link to comment Share on other sites More sharing options...
western Posted January 9, 2011 Share Posted January 9, 2011 is that a extra space between pump & adjuster plate ? if yes & you remove it, does the pump then line up with the crank pulley ? Quote Link to comment Share on other sites More sharing options...
Retroanaconda Posted January 9, 2011 Share Posted January 9, 2011 I happen to have a brand new NTC8287 Defender PAS pump on my desk here Mo. I'll get a picture of the end of it for you. Quote Link to comment Share on other sites More sharing options...
Retroanaconda Posted January 9, 2011 Share Posted January 9, 2011 Hope these help with measuring: NTC8287 as above, fitted to late 2.5TD and early 200Tdi models. Quote Link to comment Share on other sites More sharing options...
Disco-Ron Posted January 9, 2011 Share Posted January 9, 2011 Looks to me like that shiney silver spacer needs removing, and that should sort it............... Quote Link to comment Share on other sites More sharing options...
Mo Murphy Posted January 9, 2011 Author Share Posted January 9, 2011 Sorry I should have mentioned that ! The spacer is there from an earlier experiment to use the other pulley Ralph, ignore it, it's not there now Looking at the 200 pump rebuild thread in the tech archive, it appears that the flange can be pulled off the shaft with a puller. I wonder if it would be feasible just to draw the flange along the shaft ? Mo Quote Link to comment Share on other sites More sharing options...
Mo Murphy Posted January 9, 2011 Author Share Posted January 9, 2011 I happen to have a brand new NTC8287 Defender PAS pump on my desk here Mo. I'll get a picture of the end of it for you. Thanks for that James, more interesting is how much shaft is sticking out beyond the flange Mo Quote Link to comment Share on other sites More sharing options...
western Posted January 9, 2011 Share Posted January 9, 2011 The spacer is there from an earlier experiment to use the other pulley Ralph, ignore it, it's not there now Looking at the 200 pump rebuild thread in the tech archive, it appears that the flange can be pulled off the shaft with a puller. I wonder if it would be feasible just to draw the flange along the shaft ? Mo Ok, was just a thought, reckon it's the pump nose/shaft length thats different then. Quote Link to comment Share on other sites More sharing options...
Retroanaconda Posted January 9, 2011 Share Posted January 9, 2011 About 2mm on this one, but you might be able to pull one off, reverse it and press it back on. Due to the non-symmetrical shape of it. Which pulley do you want to use on your pump? Spacing the bolts out would enable you to use the inner one. Quote Link to comment Share on other sites More sharing options...
Mo Murphy Posted January 9, 2011 Author Share Posted January 9, 2011 Well, M8 nuts between the pulley and the flange put it in the right place. My flange is pressed further onto the shaft than yours is James, so I'll pop out tomorrow and buy a puller and have a go at pulling the flange closer to the end. Mo Quote Link to comment Share on other sites More sharing options...
LandyManLuke Posted January 9, 2011 Share Posted January 9, 2011 For what it's worth, here's an old picture of when I changed my pump. Quote Link to comment Share on other sites More sharing options...
Mo Murphy Posted January 10, 2011 Author Share Posted January 10, 2011 Likewise Luke, I think it's just down to the pulley flanges location on the shaft. The defender ones are right at the end of the shaft with only the chamfer showing whereas mine is further onto the shaft. Tomorrow will tell Mo Quote Link to comment Share on other sites More sharing options...
Mo Murphy Posted January 19, 2011 Author Share Posted January 19, 2011 Actually I didn't do it tomorrow but I got round to doing it tonight I've pulled the flange to the edge of the chamfer at the end of the shaft and the pulley now lines up with the crank pulley Splendid ! Now to see if my soldering is ATF tight Cheers to all for your help Mo Quote Link to comment Share on other sites More sharing options...
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