Topic: Omra Makara D Class (Read 185093 times)

2772e · « **Reply #375 on:** December 30, 2007, 06:48:37 pm »

Back from a day at the lake, great weather but boating not as successful.

Flexi wound up and punctured the fuel tank as well as destroying the prop tube.

Could not get engine tuned properly so back to the drawring board. :-\

:'( :'(

AC RAZOR 45 · « **Reply #376 on:** December 30, 2007, 06:51:58 pm »

simon who's shafts are you using....mad ..

.. al :

2772e · « **Reply #377 on:** December 30, 2007, 06:56:07 pm »

The last one i snapped was from Dave M, so i went back to the original PIP flexi from Nimrif. Had to engineer the stinger to accept the wider shaft.

The problem was the flexi got into a bit of a swing and twisted the tube, then the tube split a strand and then BANG, the whole lot stopped.

Should be an easy fix.

I will get a new flexi off Mark Copley, not sure where to get the brass tube from, is it a B&Q job?

Regards

Simon

Bill D203 · « **Reply #378 on:** December 30, 2007, 07:02:05 pm »

Simon. I bet you said Whops or words like that???? See Mad makara bit for my account of my days boating. ???

AC RAZOR 45 · « **Reply #379 on:** December 30, 2007, 07:02:36 pm »

hi simon great choice marks shafts are superb and really hard wearing, b and q dont sell the right size, dave has some at £5 plus £5 post, or i can let you have a peice of mine i get from local model shop, will work out about £7.00 inc post...if you want it pm your address and the length you want.....mad

...al....

2772e · « **Reply #380 on:** January 19, 2008, 08:29:45 am »

Cheers Al, Tony is supposed to have one for me but i will let you know.

Thanks

Simon

bigtee · « **Reply #381 on:** January 19, 2008, 05:16:54 pm »

simon, i sure do have a prop tube for you

did you sort the labtop out and junk that vista

tony

2772e · « **Reply #382 on:** January 19, 2008, 06:12:54 pm »

doing it right now

if you dont hear from me again it all went wrong

gentleman, i am just stepping out, i may be some time

signing off

2772e · « **Reply #383 on:** January 30, 2008, 08:03:36 pm »

AL, Pete, Blagmeister where are you and whats happening with your boats?

Blagmeister · « **Reply #384 on:** January 31, 2008, 02:18:10 pm »

Hi Simon

Sorry not to have been on lately - pressure of work.

Still building the boat - here's the latest pics. Progress has been a bit haphazard of late due to work but nearly there now.

The air vents are in situ now over suitably large-sized slots and I have set the louvres in alternate directions: One forward facing on the starboard side to ram air into the hull and circulate towards the carb and the port side one situated over the exhaust and facing rearward to draw air out and away from the engine bay. The low-pressure effect created by the airflow over the port side louvres should, in theory, draw enough hot air out to cool the bay. Time will tell!

The hatch fixing is a combination of brackets which hook under the trailing edge of the front of the engine bay opening coupled with an adapted aluminium 50mm door bolt which was tapped out and a M4 bold fitted. Seems to be secure enough. I tried using some proprietory clips from PMB first but they wouldn't cut the mustard and regrettably have left a bloody great hole in the hatch so one of them is going to have to stay in place. c'est la vie.... You live and learn!!!

I have also fitted some gewgaws in the shape of an instrument kit from Warehouse Hobbies [where I got the louvres from] which helps add a bit of scale realism and I am just about to order the crew models from BigTee to finish off the cosmetics!

I dropped in to see Danny last weekend and he was kind enough to throw some Makralon my way to help me finish off the radio box which is the current bone of contention. Hopefully I should have that finished and installed this weekend which just leaves the exhaust which I am waiting for from Andy.

Fingers crossed and within the next couple of weeks and I should be ready for a maiden! [Weather permitting].

Cheers

Phil

Bill D203 · « **Reply #385 on:** January 31, 2008, 04:38:32 pm »

Looking Good Phill.

Bill.

2772e · « **Reply #386 on:** January 31, 2008, 08:02:47 pm »

Nice,

glad to see its coming on, love the dash, next visit will be their website!

When are you testing her?

Blagmeister · « **Reply #387 on:** February 02, 2008, 05:39:58 pm »

Not sure at this stage Simon. It depends on a few things such as when I get the exhaust. Work is looking pretty busy for me too at present so I am having to fit things in around it when I can. Looking forward to getting her on the wet stuff though!

Cheers

Phil

2772e · « **Reply #388 on:** February 03, 2008, 08:18:00 am »

Phil,

I am going testing with Andy with Andy next weekend so i will find out what is happening with your exhaust.

Are you sure about those vents facing forward? Can you unscrew them and change them? Just my experience. I had holes on the front of my dash and then 2 large holes on top of the engine bay covers, i found in a crowd i got allot of water coming in. Lots of rooster tails from other boats.

I am building a new lid as the last one cracked so have opened up the front of the engine covers and have a couple of vents on the back, similar to yours.

Did you fit the autobailer?

Regards

Simon

Bill D203 · « **Reply #389 on:** February 05, 2008, 08:16:01 pm »

Hello
Here's one for all you Zen owners. I need to get new spark plugs for both of my boats. What do you all use??? I have a resitor type plug fitted which makes it a pig to start NGK CMR5H. Any info would be helpfull.
Ta very much
Bill.

2772e · « **Reply #390 on:** February 05, 2008, 09:00:11 pm »

Bill,

I got a couple of spares from bluefishy78.com

martno1fan · « **Reply #391 on:** February 05, 2008, 10:02:47 pm »

Quote from: Bill D203 on February 05, 2008, 08:16:01 pm

Hello
Here's one for all you Zen owners. I need to get new spark plugs for both of my boats. What do you all use??? I have a resitor type plug fitted which makes it a pig to start NGK CMR5H. Any info would be helpfull.
Ta very much
Bill.

You need ngk cmr7h my zen starts second pull every time once its primed which is one very slow pull to draw the fuel in with choke on then one good short pull with choke on or finger over breather depending which carb you have then close choke or remove finger give 1/4 throttle and one short fast pull and away she goes oops thats 3 pulls lol

.

Bill D203 · « **Reply #392 on:** February 05, 2008, 10:39:22 pm »

Ta Very much. Has Blue fishy moved from London to luton???
Im off now Good night.

2772e · « **Reply #393 on:** February 06, 2008, 07:35:09 am »

Bill,

I believe he has, use the mobile number.

Are you coming Saturday?

Regards

Simon

Bill D203 · « **Reply #394 on:** February 06, 2008, 02:30:57 pm »

Hi Simon
I can do Saturday, but the Makara is out of action till I get all the exhault bit shorted. So What time ? I will run the Endfrocer boat.

Ps did you get the paint code OK???

2772e · « **Reply #395 on:** February 06, 2008, 06:41:49 pm »

Bill,

What's wrong with the exhaust?

Saturday will be early untill we finish

Got the paint code, thanks, pick the boat up Saturday and go from there!

BW

Simon

Bill D203 · « **Reply #396 on:** February 06, 2008, 11:52:07 pm »

Hi Simon
If you recall I am having a spacer block made between the engine and the header pipe so it lines up a bit better, and also having the head taped out as the treads for the 2 ex bolts are strip. + a Collier is being made around the ex pipe outlet so it dose not cut its way into the fiber glass. Little tidy up jobs which will inprove it,s reliability. Best get it all done before the racing session starts.
See you at 10 then on Saturday. I will have to be away by 2 as we have a party in MK to go to in the eve.
Cheers for now
Bill

Blagmeister · « **Reply #397 on:** February 07, 2008, 07:20:48 pm »

Quote from: 2772e on February 03, 2008, 08:18:00 am

Phil,

I am going testing with Andy with Andy next weekend so i will find out what is happening with your exhaust.

Are you sure about those vents facing forward? Can you unscrew them and change them? Just my experience. I had holes on the front of my dash and then 2 large holes on top of the engine bay covers, i found in a crowd i got allot of water coming in. Lots of rooster tails from other boats.

I am building a new lid as the last one cracked so have opened up the front of the engine covers and have a couple of vents on the back, similar to yours.

Did you fit the autobailer?

Regards

Simon

Hi Simon

Thanks for the offer to find out about the exhaust.

As for the vents, no I'm not sure, but it seemed like a good idea at the time! I'll give it a go this way around but I haven't glued them just in case I did get drenched and i can swap the forward facing one around so it points back'ards.

I know a lot of others run with big vent holes on the front of the engine cover, but I must confess to being a bit twitchy about that. I would think if water was going to get in anywhere, that would be a good way to guarantee it, but no doubt testing will reveal all.

I bought an autobailer off BigTee yesterday together with some other stuff although it's bloody huge! It would mean another big hole in the hull. Presumably you are supposed to fit these as close to the lowest point as possible. Do you run one in yours and if so, is it any good? Also can you give me any advice on props Simon? I am running the same sort of setup as you did at first with a stock zen, stringers, 21" centre from transom etc etc., so I would have thought a similar prop to yours would do me well.

Incidentally, I can't sing praises for BigTee enough. I ordered some stuff on Wednesday and it arrived today! Compared to all the other model boat suppliers I have tried Tony leaves the rest for dead in terms of service.

Current progress: stringers all fully glassed in now, engine in, radio box completed and fitted into stringers, sterngear fitted. Grab handles and drivers fitted.

Left to do: Paint engine bay, setup servo control arms, fit throttle cable, fit cooling pipes and fuel tank and pipes, fit exhaust.

Nearly there....

omra85 · « **Reply #398 on:** February 07, 2008, 08:16:42 pm »

Quote from: Blagmeister on February 07, 2008, 07:20:48 pm

I bought an autobailer off BigTee yesterday together with some other stuff although it's bloody huge! It would mean another big hole in the hull. Presumably you are supposed to fit these as close to the lowest point as possible. Do you run one in yours and if so, is it any good?

Phil
The auto-bailers do work in that they let quite large amounts of water out of the hull rapidly. You are right that they go at the lowest point (usually just next to the shaft). The tube has to be kept clean and you will find that the plastic ball does NOT seal against the 'o' ring completely so, if you stop, water will slowly fill the boat up. Make sure you have enough buoyancy - or a fast rescue! Usually good for about 5 minutes though. I'm going to try a "reverse scoop" under my next boat, with a loop tube to the pickup point at the back. They don't shift as much out, but don't let any in either.
Danny

martno1fan · « **Reply #399 on:** February 07, 2008, 10:29:15 pm »

You can make your own bailer that wont leak at all if you stop,mount a flush water piccup backwards through the hull run a piece of coiled up silicone tubing from it into the hull .As your boat moves it creates suction this will draw all the water out but having the tubing coiled up it stops water coming into the boat when stopped,thats the idea anyway.Seen a few guys use this before and talked to a few guys who have done it and it works well.

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Author Topic: Omra Makara D Class (Read 185093 times)

AC RAZOR 45

AC RAZOR 45

bigtee

Blagmeister

Blagmeister

Blagmeister

omra85