Guest Posted June 14, 2014 Share Posted June 14, 2014 hello .i am planning on fitting a dry sump to my 1700 super sprint crossflow.i have the choice of side mounted pump or front mounted.it seems to fit the side pump i need to change engine mounting but would the front pump fit the past the chassis because if it does fit it should be a lot neater installation.many thanks for any help. Link to comment Share on other sites More sharing options...
7 wonders of the world Posted June 14, 2014 Share Posted June 14, 2014 ISTR that the Pace side mount with filter fits with no issues Linky cuts down on plumbing and the need for a remote filter to. Link to comment Share on other sites More sharing options...
Guest Posted June 14, 2014 Share Posted June 14, 2014 thanks for reply.a friend runs formula fords and has spare front or side mount pumps but both would need remote filters. Link to comment Share on other sites More sharing options...
Graham Perry Posted June 14, 2014 Share Posted June 14, 2014 My side mounted pump is a tight fit and uses a remote filter which sits just above the steering rack. We had to lower one side of the engine by 15-20mm to stop the pump vibrating against the steering shaft. You will need a special engine mount for the pump side. I have no experience of the front mounted pump. I have a very poor photo of my pump in situ and another showing where my filter is placed that I could send you if you drop me an email Link to comment Share on other sites More sharing options...
rgrigsby Posted June 15, 2014 Share Posted June 15, 2014 Haven't had my crossflow for a few years now but I do always remember the side mounted pump being a very close fit with the steering column. Link to comment Share on other sites More sharing options...
Roger King Posted June 15, 2014 Share Posted June 15, 2014 Front mounted pump is fraught with pitfalls. They work very well when done properly, but you need to know what you are doing. Aside from the obvious point that you have to partially strip the engine and replace the standard front cover with the pump casting there is the matter of taking drive from the front of the camshaft. If you don't use a floating dog drive, you have to get the alignment of the camshaft centre line and the pump shaft centre line on exactly the same axis or you will suffer from binding and eventual failure of the drive. The floating dog arrangement uses a separate dog that is free to move on both the camshaft and the pump shaft, thereby accommodating a small amount of misalignment; this however requires tight control of clearances so that the dog can't pop out while running. There's really no technical advantage to a front pump. We used them in Clubmens cars simply because the driver's feet used to be where the side pump would sit. Personally, I would go for a side pump unless you have no choice, particularly since the engine mount required is available. Link to comment Share on other sites More sharing options...
Guest Posted June 15, 2014 Share Posted June 15, 2014 Quoting Roger King: Front mounted pump is fraught with pitfalls. They work very well when done properly, but you need to know what you are doing. Aside from the obvious point that you have to partially strip the engine and replace the standard front cover with the pump casting there is the matter of taking drive from the front of the camshaft. If you don't use a floating dog drive, you have to get the alignment of the camshaft centre line and the pump shaft centre line on exactly the same axis or you will suffer from binding and eventual failure of the drive. The floating dog arrangement uses a separate dog that is free to move on both the camshaft and the pump shaft, thereby accommodating a small amount of misalignment; this however requires tight control of clearances so that the dog can't pop out while running. There's really no technical advantage to a front pump. We used them in Clubmens cars simply because the driver's feet used to be where the side pump would sit. Personally, I would go for a side pump unless you have no choice, particularly since the engine mount required is available. Link to comment Share on other sites More sharing options...
Guest Posted June 15, 2014 Share Posted June 15, 2014 thanks for replys.i would appreciate photos from graham perry.my e mail is cbowdidge@gmail.com Link to comment Share on other sites More sharing options...
DaveMorris Posted June 16, 2014 Share Posted June 16, 2014 I'll try and take some photos of the installation on my re-build. IT's not complete yet - but will give you general idea of how tight things are. I have remote filter mounted on a bracket off the bell housing - so that the filter is fixed to the same "mass" that the pump is. Hence the flex hoses don't actually need to flex (FIlter sits just below where original mechanical fuel pump used to be) There is a degree of trial and error involved - and you have to "rotate"the steering rack to lift the column slightly (though if you have the rack already shimmed to redice bump-steer then you don't need to rotate by much). Don't underestimate the cost of what you are about to embark on. Hose, tank, fittings, remote filter mount etc all add up. As already said - modified o/s engine mount is (was) readily available from Redline or Caterham. Dave (Oh - and I know of one person who went the front pump route - and that was a REAL p.i.t.a.) Link to comment Share on other sites More sharing options...
DaveMorris Posted June 16, 2014 Share Posted June 16, 2014 Sent, D Link to comment Share on other sites More sharing options...
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