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Engine Camshafts, Crankpins,Oil pump & Cam drive gears NEWS 2011 - new clutch kit & rev counter drive available Now a complete gear drive conversion!
Everything you see in this picture is supplied. X1 cam profile. A small amount of machining will be required which Gary will supply details of or will do for you if you can ship him the cases & covers
Now available from Gary. A Ducati style clutch unit to eliminate slip & drag using Ducati plates & springs.
The Smiths / Parilla rev counter drive is a real rarity & when they can be found are usually worn internally due to their crude construction & dodgy lubrication. These replicas are fitted with sealed ball bearings rather than bushes & the gears are case hardened. Identical to the OE the rear faces are left flat to distinguish them from the original items.
A really nice replica of a hard to find part. For all these items contact Gary Emerson direct on: One of the hardest working components in a hicam engine is the camshaft. Twice the work of a conventional cam & not that well lubricated. The touring versions can usefully be upgraded with an X1 cam & a HC piston (then some valves & a bigger carb & a CDI ign!) & almost every engine with the X1 is by now showing some wear. There have been firms in the USA , in the past, which would repair & regrind or make a cam to race profile. They seem reluctant to do so now. Thanks to the efforts of one of our UK Parillistas the problem is now solved.
Machined from EN36 steel & case hardened Available with either 7 or 8mm lift for 175/250 usage
Gary is currently considering manufacturing the spindle for the cams if there is sufficient demand Price - check with Gary Gary has made a batch of the following spares. Please note that this will be his last batch of Parilla spares for the foreseeable future - he wants to finish his Parilla restorations & get some riding done!
Contact him direct at the address shown at the start of this section for prices & availability.
250 inlet valves - 36mm head 7.5mm stem All gone! No plans to make more for my own use but I will do so if enough people are prepared to lodge a 50% deposit & I can achieve a minimum batch number of 20 to get a reasonable price. Previously unavailable but at last new valves are now here. Manufactured in the UK to the exact dimensions of the originals from modern 214N material. Stellite tipped & plasma treated....even a couple of grammes lighter than OE.
250 valve spring caps Made to suit the above valves in steel
Racing Lightweight Valve Kits All gone! All spare sets have now been distributed to Moto Parilla enthusiasts in the USA, UK & Europe. As a result of discussions with two of the foremost race-engine component manufacturers in the UK we were advised that one of the first things we should look at, with a view to improving engine performance, was the valve train. The Parilla 250 Valve gear is heavy & as such restricts the upper rev limits of the engine & also needs heavy springs to control it which in turn leads to increased wear on the cams & followers. The result is that we have had complete sets of lightweight valve gear made for the 250 engine. They are made for our 250 racer project primarily but would benefit any hot 250 engine. The sets consist of:
2 x Colsibro valve guides. 6mm ID to suit the valves, Std OD to fit the 250 head. 2 x Titanium valve spring caps. 30% lighter than standard 4 x valve collets. 6mm keepers to suit valve & cap. 2 x lightweight cam followers. 20% lighter . This all adds up to a very desirable weight loss & gasflow increase.
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