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Hi All, Long story. I’m trying to fix an MDS .61 engine, for a friend (actually more than one). These engines seem to have borrowed quite a lot (in design terms), from Italian engines of the time. Porting layout is like Mk1 Picco (four transfer / boost ports), with a drum induction setup like...

Hi All, just wondering if someone might know what this Hull Is please ?

A boating friend of mine is soon visiting Orlando, and wondering if there's a good place to see some fast boats running in the area ? I found a link for Orlando Culvert Dodgers club, but the website seems to be down, and couldn't find much info. Thanks in anticipation.

Hi everyone, just looking for some liner removal tips please. With the CMB Evo style engines, if the liner doesn't pull out easily, I usually use a cable tie in the exhaust port (after removing the C-Clip, but leaving the pin in place), doubled over, and / or across and looped into the boost...

Hi everyone, just looking for some liner removal tips please. With the CMB Evo style engines, if the liner doesn't pull out easily, I usually use a cable tie in the exhaust port (after removing the C-Clip, but leaving the pin in place), doubled over, and / or across and looped into the boost...

Morning all. Just wondered if anyone may know if the VAC 45 case bores are the same size as the HR please ? Alternatively, does anyone know the o/d of the VAC 45 liner please ? Many Thanks: Ian

Just wondering if anyone might be able to comment on this please. I have a number of Evo style .45s and .90s - mostly purple headed, and since the crankpins are now "unobtanium", I was wondering whether something like a HSS drill blank would be suitable material, hardness etc. I believe the...

These parts are for the square bottomed, silver head (disk rotor) version of the 67 EXR engine. 1) Brand New Piston, Sleeve, and Wrist Pin. 2) Brand New Picco OEM rod / circlips. 3) Good used case, backplate and rotor, head button, crankshaft, cooling jackets. Almost enough secondhand parts...

Here in the UK, we have an offshore racing association (actually two now). Races are mostly endurance - approximately 1/2 hour heats - hence a lot of fuel is needed. Because of the fuel needs (eg 2 litres plus for a .45 engine), the boats tend to be very big for the engine sizes - compared to...

Not sure if anyone here will be interested - since I am in the UK, and I know the bulk of forum members are in the US, but I thought I would post here before eBay. I have a number of OPS pipes which I am looking to shift - mostly brand new (as far as I can tell), but old. Most have boxes -...

A new boater brought a Picco like the one in the picture to a race on Sunday. He bought it on eBay as a .60. It has no stampings on the lugs. I know Picco produced this style in .67 and .80 sizes, but not sure if they produced it as a .60 or a .65. Would anyone here know please ? Otherwise I'll...

Just wondering if anyone here has used the glue (or Loctite) method - for fixing flexi to stub shaft. I have a non-standard stub shaft (8mm O/D, 5mm at the dog - turned down to 3/16" for the prop) - which was originally glued to the flexi. I have extracted the cable with heat, and am...

As it's Friday, I thought I'd give you a laugh at my expense. My (former) CMB 45 at the end of a recent race. Anyone else managed to do this with a steel rod ? Ian

Since there have been so many good topics on engine timing etc recently..... After reading some of Gordon Jennings' material, I took some time-area measurements on a couple of engines I had lying around at home. I made the assumption that the transfer port time-area should be the sum of the...

For anyone who runs 3.5cc classes out there. If you fancy doing a little marine conversion, you'd have to be untouchable packing these kind of revs and horse power...... http://cgi.ebay.co.uk/JP-Kangaroo-Motor-No...1QQcmdZViewItem

I came across some Zimmerman type rotor discs - amongst some OPS spares. These are still in the OPS bags, and labelled OPS .60. I haven't personally (as far as I recall) seen an OPS . 60 (or any OPS other than a .90), with a Zimmerman rotor, so I'm curious whether anyone else has ? Ian

It's official, and in stock. I've seen one with my own eyes. http://www.308hobbies.com/ProdDet1.asp?PLU=83390 No photo there, but it looks quite similar to this one... http://cgi.ebay.co.uk/PICCO-P90-R-Marine-R...1QQcmdZViewItem

I need a wrist pin for a Picco 67 EXR, EXR2 I believe - square bottomed case. If anyone has one, and is prepared to part with it, please let me know. Thanks: Ian

I'm looking for help again ! I need a wrist pin for a Picco .67 EXR2 (square bottom case). As I'm not optimistic of finding a Picco pin, I was wondering if anyone knows of an alternative please. It appears to be 6mm diameter and 21.5mm length - as measured with a digital caliper. I will measure...

Seems like a SC .90 is a race engine now... http://cgi.ebay.co.uk/Massive-Aeromarine-9...1QQcmdZViewItem And look at the price too. The seller bought this boat on eBay a few weeks ago - for less than half the current start price. Not long left - only a one day listing. Ian