Pilgrim pump reduction drive | Scotts Owners Club

This topic has 14 replies, 8 voices, and was last updated 8 years, 6 months ago by Deleted User.

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24th January 2018 at 9:33 pm #4802

steph1960
Participant

I have just fitted a pump reduction drive to my 47 Scott and the pump now fouls the exhaust, the oil feed unions on the bottom of the pump don’t allow the exhaust to come up high enough. It looks like these reduction drives aren’t suitable for Scotts with a right hand exhaust system. Has anyone else fitted one of these drives to their Scott with a right hand exhaust and overcome the problem?

Steve

25th January 2018 at 9:50 am #16425

Eddie Shermer
Participant

[attachment=0:1194zjgr]DSC00567.JPG[/attachment:1194zjgr]
There is plenty of room on the one fitted to my bike.
Eddie

25th January 2018 at 10:16 am #16426

steph1960
Participant

[attachment=0:3pkee14a]Reduction Drive.jpg[/attachment:3pkee14a]

Eddie, a pic of mine is above. The exhaust is touching the tank oil feed and it isn’t tightened up yet. My pump looks to be lower than yours for some reason.

25th January 2018 at 10:25 am #16427

Eddie Shermer
Participant

[attachment=0:34r3pzeg]DSC00568.JPG[/attachment:34r3pzeg]Hi Steve,

The pump drive is eccentric to the body of the reduction gear so you should be able to rotate 90deg to lift the pump up in relation to the centre line of the door.

regards
Eddie

25th January 2018 at 11:39 am #16428

steph1960
Participant

I don’t recall mine being eccentric but it probably is, I will have a look tonight and report back.

Thanks Eddie.

25th January 2018 at 12:37 pm #16429

dave bushell
Participant

My pump is concentric with the reduction gear, not offset.
Dave

25th January 2018 at 5:27 pm #16430

scott596
Participant

Your pump connectors are not right you should have a banjo connector with a hollow bolt, similar to float bowl to carburettor joint. Alan Noakes. scottworkshop@hotmail.co.uk

25th January 2018 at 6:34 pm #16431

BRIAN MARSHALL
Participant

Be VERY careful that whatever type of union you use in the feed hole, does not obstruct the internal drilling that goes off sideways near the end of the threads. Take the pump off to be able to see what I mean. Normally only three or four thread pitches should screw into the hole, so it may be necessary to shorten the threaded portion of the union fitting, in order to be sure that the drilling isn’t obstructed.
Brian

26th January 2018 at 9:17 am #16432

steph1960
Participant

[attachment=0:9ig9hy26]Reduction Drive 2.jpg[/attachment:9ig9hy26]

Success I have clearance, thanks Eddie.

With regards to the pump connectors. Thank you for highlighting a potential problem but these connectors are what the bike came with and have worked perfectly well up to now so I will leave alone, I have only added the reduction drive and necessary pipework.

Steve

26th January 2018 at 11:45 am #16433

Deleted User
Participant

Can I ask the source and cost of this reduction drive?

26th January 2018 at 1:11 pm #16434

BRIAN MARSHALL
Participant

Try Alan Noakes

26th January 2018 at 2:05 pm #16435

steph1960
Participant

I bought it from a private classified, it was new but I don’t know the original source, sorry.

26th January 2018 at 3:37 pm #16436

Deleted User
Participant

Eddie Shermer might be able to help too.

28th January 2018 at 10:13 am #16437

Deleted User
Participant

Rear page of Yowl; Mr Howard is the contact, Regards

28th January 2018 at 11:06 am #16438

Deleted User
Participant

Thank you.
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