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Search: Posts Made By: keithlawes
Showing results 1 to 18 of 18
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Forum: RCV Engines Support
06-29-2009, 09:28 AM
Replies: 8
Views: 4,823
Posted By keithlawes

RE: RCV91cd Chirping noise

Again, it does sound like you have the same issue.

I must emphasise that this is a very rare problem. We have now produced many thousands of engines in the CD range and looking back at our...
Forum: RCV Engines Support
06-16-2009, 05:35 AM
Replies: 1
Views: 730
Posted By keithlawes

RE: Can the carb unit on the RCV91cd be reversed?

Hi

Yes its no problem to swivel the carb 180 deg

Keith.
Forum: RCV Engines Support
06-16-2009, 05:31 AM
Replies: 8
Views: 4,823
Posted By keithlawes

RE: RCV91cd Chirping noise

Hi

The engine does have a problem which is easily rectified.

The problem is that the cylinder bearing is loose in its housing when hot. At full throttle the cylinder pressure keeps the...
Forum: RCV Engines Support
06-16-2009, 05:26 AM
Replies: 10
Views: 1,752
Posted By keithlawes

RE: RCV120SP mounting options

Hi

Sorry about delay in replying

Answer is that the position of the vent will have almost no effect whilst the engine is running. With the crankshaft whirring round at 12000RPM, and 20cc of gas...
Forum: RCV Engines Support
04-27-2009, 05:14 AM
Replies: 3
Views: 1,064
Posted By keithlawes

RE: 58-CD idling around 4000

Hi

Think the previous contributors advice is v good, thats certainly one method of doing it. Essential you get the throttle close to closed, so the pin method is a good one. And you can hold the...
Forum: RCV Engines Support
04-07-2009, 06:05 AM
Replies: 4
Views: 1,334
Posted By keithlawes

RE: Will SP's run safely on Bekra 10?

Hi walts

We switched from endurance testing using part castor part synthetic to fully sythetic a few years ago. To be honest have seen no trouble with either so I'm confident its safe to...
Forum: RCV Engines Support
04-07-2009, 05:35 AM
Replies: 4
Views: 971
Posted By keithlawes

RE: Another engine/prop question for Keith.

Hi Joe

I think all the numbers you are getting are about right. Your engine seems to be giving a fairly healthy power output.

The discrepancies in the numbers are due to difference in prop...
Forum: RCV Engines Support
03-31-2009, 04:24 AM
Replies: 10
Views: 1,830
Posted By keithlawes

RE: Prop too big?

Hi Josh

Had probs viewing your video (v slow computer), but have managed to do it at last.

Very impressive. Does look great, and I'd say the takeoff performance is pretty fair. How much...
Forum: RCV Engines Support
03-31-2009, 03:52 AM
Replies: 10
Views: 1,830
Posted By keithlawes

RE: Prop too big?

Hi Josh

Thanks for the flattery!! Always susceptible to a bit of flattery.

On the overpropping, its a very interesting subject.

Firstly I am sure you are not doing the engine any harm...
Forum: RCV Engines Support
03-26-2009, 06:02 AM
Replies: 9
Views: 1,545
Posted By keithlawes

RE: 90sp Vs 120sp for multi blade props

Hi Everyone

My name is Keith Lawes. I'm technical director RCV

Simple answer to your question is that the 120 could swing a much larger multi blade prop but at the time we specified them...
Forum: RCV Engines Support
03-19-2009, 06:14 AM
Replies: 1
Views: 947
Posted By keithlawes

RE: Chirping Noise during Idle RCV-58

Hi Erik

From Keith Lawes, technical director RCV Engines

Your engine does have a minor fault. What happens is that the cylinder is not tight enough fit in the cylinder bearing (the large...
Forum: RCV Engines Support
03-09-2009, 05:53 AM
Replies: 10
Views: 1,616
Posted By keithlawes

RE: Hudson Flier Project

Hi Chevelle

So with that weight and huge area you can probably get away with a 90. Think a 90 boxer twin would be ideal, shame we dont do one!

There is an original Curtis (I think) Biplane...
Forum: RCV Engines Support
03-05-2009, 07:10 AM
Replies: 10
Views: 1,616
Posted By keithlawes

RE: Hudson Flier Project

Hi Chevelle

My name is Keith Lawes, I'm technical director at RCV. I'm afraid I would strongly recommend that you do NOT fit a 120SP into this model. Its very lightly constructed, and whilst the...
Forum: RCV Engines Support
03-05-2009, 06:54 AM
Replies: 3
Views: 1,035
Posted By keithlawes

RE: RCV Ebgine Fuel

Hi

The previous contributor is completely correct. A conventional glow plug works by the catalytic action of methanol on the hot platinum coil during the inlet and compression strokes. The hot...
Forum: RCV Engines Support
02-09-2009, 05:53 AM
Replies: 1
Views: 1,192
Posted By keithlawes

RE: Vibration Comparison RCV Cd Vs other 4 strokes

Hi

My name is Keith Lawes, technical director at RCV.

Obviously would be easy to promise that the RCV CD range are the smoothest devices known to man, but to be honest all single cylinder 4...
Forum: RCV Engines Support
12-22-2008, 06:06 AM
Replies: 1
Views: 1,099
Posted By keithlawes

RE: RCV CD series Upside-down

Hi Marc

Its fine to run them upside down. In fact the majority are prob run inverted as this fits in better with most aircraft cowl shapes

Regards

Keith Lawes
Forum: RCV Engines Support
12-11-2008, 07:05 AM
Replies: 7
Views: 2,141
Posted By keithlawes

RE: RCV 91 CD Problem

Hi Rad

Timing sounds spot on and RPM is reasonable. You have obviously tried the mixture. But maybe have one last go to see if the idle needle has any affect.

As you screw the idle needle...
Forum: RCV Engines Support
12-08-2008, 07:36 AM
Replies: 7
Views: 2,141
Posted By keithlawes

RE: RCV 91 CD Problem

Hi Rad

Its Keith Lawes from RCV Engines here hoping to help out!!

Will the engine not even run flat out with the plug de-energised?

1/ Could you give me an RPM figure with the engine...
Showing results 1 to 18 of 18


 
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