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  #1  
Old 07-04-2015, 07:31 PM
ironmike953 ironmike953 is offline
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Default reliant trike rear brake.

Hi ,hope someone can help. The rear brakes on my trike are crap at the moment and was hoping someone could shed some light on the problem. It's had new shoes and master cylinder and both rear cylinders are ok.the pedal is firm and moves the shoes out when pressed. At the moment I'm at a loss as it's the same set up as the car. Eny help much appreciated.
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Old 07-04-2015, 09:24 PM
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Are the shoes the right way round
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Old 08-04-2015, 04:48 PM
ironmike953 ironmike953 is offline
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Yep shoes in the right way. They must of worked ok at some point as nothing as changed from where Iit was parked up 3 year ago untill I got it. Will re check it tonight.
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Old 08-04-2015, 08:10 PM
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Hi Mike, make sure the wheel cyliders can slide in the back plates. they live in slots and often seize up and then only one brake shoe does any work.
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Old 08-04-2015, 09:35 PM
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While it was parked up was the handbrake on? Could be the wheel cylinders have leaked fluid onto the brake linings?
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Old 09-04-2015, 11:39 AM
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hoses or solid pipes?
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Old 09-04-2015, 04:50 PM
ironmike953 ironmike953 is offline
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The pistons slide up n down. The pipe work is all copper, no hoses. I did find the springs had been put on in the wrong place .short at piston side. Put them back as they should be. There a bit better but there not going to stop the thing in a hurry. Will plod on.if it was easy we would all have one
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Old 09-04-2015, 07:20 PM
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Is there any rust or dust present on the braking surfaces? Are the shoes new as in need bedding in? I know on our landrover it turned out the actual contact area of the shoe streight out of the box was just the leading and trailing edges, a quick dressing with a file got it to about 3 inches each end, a nice 35 mild drive to mot place had them nicely bedded in and a lot better than when we started out.
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Old 10-04-2015, 05:09 PM
ironmike953 ironmike953 is offline
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Cleaned up the drums before I put new shoes in.i will try something else later and see if that works.
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Old 12-04-2015, 08:46 PM
ironmike953 ironmike953 is offline
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Had another look at the brakes yesterday and couldn't find owt.so I drove? Rode? The trike up and down the drive. About 30 feet(before eny one thinks it's a mansion) after about 30 minutes they seem a bit better. Then I added a big spanner to the top of the peddle. That made it better still. So iv removed the peddle and will modify and report back. Still at a loss though as the trike must have been ok before i got it.
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Old 12-04-2015, 10:10 PM
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Those copper pipes often crack at the turns, the fluid leaking out leaves a telltale damp patch.

Venhill engineering sells replacement lines measured from the centre of the banjo nuts.

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Old 13-04-2015, 12:35 AM
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Erm - I spose they don't simply need adjusting?

Although I have to say - if they improve with just up and down the drive, I'd take it out for a spin before adjusting - whenever I get any work done on mine I have to adjust them BACK a notch cos if properly adjusted when cold they bind when hot. Just have to stamp on the pedal a bit when cold!
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Old 13-04-2015, 05:46 PM
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So I removed and modified the peddle. Added about 3" to the hight and made it look like a small case h.so the pin goes through the bottom off both legs. I refitted the peddle and rode up n down again. YEAH it's now spot on. In conclusion I think that the peddle was to short and the way it was before (like a z)but stright if you know what I mean, so allowing the peddle to flex rather than put full force on the brakes. HAPPY DAYS.next step MOT.THEN I WILL SEE YOU ON THE ROAD.
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Old 14-04-2015, 09:15 PM
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Excellent!
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Old 18-04-2015, 01:41 PM
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MOT PASSED AND TAXED ON LINE. The thing isn't going to beat eny speed records
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Old 18-04-2015, 04:39 PM
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Great News
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Old 19-04-2015, 04:05 PM
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Speedometer stop working as I set off for the MOT. but the thing seems to slow. I know that the top speed is 80/85 .but I don't think it was doing 50. The trike seems to loose power in top gear.Eny thoughts?. Or pointers. Thanks.
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Old 21-04-2015, 05:17 AM
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Quote:
Originally Posted by ironmike953 View Post
Speedometer stop working as I set off for the MOT. but the thing seems to slow. I know that the top speed is 80/85 .but I don't think it was doing 50. The trike seems to loose power in top gear.Eny thoughts?. Or pointers. Thanks.
loosing power in top gear is a usually caused by too high gearing. what axle ratio/tyre combination are you using?
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Old 21-04-2015, 05:21 PM
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The wheels are 10".The gear ratio don't know. As far as I know Iit all came from one car . Engine , box axel wheels ect. I have heard that there are 2 diff types a and b. The speedo cable will be here in a day or two. Will fit and see what happens. Will also invest in a rev counter.
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Old 21-04-2015, 07:07 PM
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If you are running on the standard size Reliant 10 inch wheels the following is the theoretical speeds in gears copied from my site ;

https://sites.google.com/site/fifers...-standard-axle

AXLE ; STANDARD RATIO { 850 } ; 3.23

GEARBOX ; STANDARD RATIOS { 850 }

1st ; 3.88 ...... 2nd ; 2.05 ...... 3rd ; 1.32 ...... 4th ; 1.00

TYRES

WIDTH ; 1.45
PROFILE ; 80
DIAMETER ; 10 inches
ROLLING DIAMETER ; 19.134

GEAR ; 1st

REVS ; 1000 = 4.5 mph
REVS ; 1500 = 6.8 mph
REVS ; 2000 = 9.1 mph
REVS ; 2500 = 11.3 mph
REVS ; 3000 = 13.6 mph
REVS ; 3500 = 15.9 mph
REVS ; 4000 = 18.2 mph
REVS ; 4500 = 20.4 mph
REVS ; 5000 = 22.7 mph
REVS ; 5500 = 25.0 mph

GEAR ; 2nd

REVS ; 1000 = 8.6mph
REVS ; 1500 = 12.9 mph
REVS ; 2000 = 17.2 mph
REVS ; 2500 = 21.5 mph
REVS ; 3000 = 25.8 mph
REVS ; 3500 = 30.1 mph
REVS ; 4000 = 34.4 mph
REVS ; 4500 = 38.7 mph
REVS ; 5000 = 43.0 mph
REVS ; 5500 = 47.3 mph

GEAR ; 3rd

REVS ; 1000 = 13.3 mph
REVS ; 1500 = 20.0 mph
REVS ; 2000 = 26.7 mph
REVS ; 2500 = 33.4 mph
REVS ; 3000 = 40.0 mph
REVS ; 3500 = 46.7 mph
REVS ; 4000 = 53.4 mph
REVS ; 4500 = 60.0 mph
REVS ; 5000 = 66.7 mph
REVS ; 5500 = 73.4 mph

GEAR ; 4th

REVS ; 1000 = 17.6 mph
REVS ; 1500 = 26.4 mph
REVS ; 2000 = 35.2 mph
REVS ; 2500 = 44.0 mph
REVS ; 3000 = 52.8 mph
REVS ; 3500 = 61.7 mph
REVS ; 4000 = 70.5 mph
REVS ; 4500 = 79.3 mph
REVS ; 5000 = 88.1 mph
REVS ; 5500 = 96.9 mph


.................................................. ......................
If the axle is the High Ratio " B " axle the speeds are ;

AXLE ; HIGH RATIO { 850 } ; 2.78

GEARBOX ; STANDARD RATIOS { 850 }

1st ; 3.88 ...... 2nd ; 2.05 ...... 3rd ; 1.32 ...... 4th ; 1.00

TYRES

WIDTH ; 1.45
PROFILE ; 80
DIAMETER ; 10 inches
ROLLING DIAMETER ; 19.134

GEAR ; 1st

REVS ; 1000 = 5.3 mph
REVS ; 1500 = 7.9 mph
REVS ; 2000 = 10.5 mph
REVS ; 2500 = 13.2 mph
REVS ; 3000 = 15.8 mph
REVS ; 3500 = 18.5 mph
REVS ; 4000 = 21.1 mph
REVS ; 4500 = 23.7 mph
REVS ; 5000 = 26.4 mph
REVS ; 5500 = 29.0 mph

GEAR ; 2nd

REVS ; 1000 = 10.0 mph
REVS ; 1500 = 15.0 mph
REVS ; 2000 = 20.0 mph
REVS ; 2500 = 25.0 mph
REVS ; 3000 = 29.9 mph
REVS ; 3500 = 34.9 mph
REVS ; 4000 = 39.9 mph
REVS ; 4500 = 44.9 mph
REVS ; 5000 = 49.9 mph
REVS ; 5500 = 54.9 mph

GEAR ; 3rd

REVS ; 1000 = 15.5 mph
REVS ; 1500 = 23.3 mph
REVS ; 2000 = 31.0 mph
REVS ; 2500 = 38.8 mph
REVS ; 3000 = 46.5 mph
REVS ; 3500 = 54.3 mph
REVS ; 4000 = 62.0 mph
REVS ; 4500 = 69.8 mph
REVS ; 5000 = 77.5 mph
REVS ; 5500 = 85.3 mph

GEAR ; 4th

REVS ; 1000 = 20.5 mph
REVS ; 1500 = 30.7 mph
REVS ; 2000 = 40.9 mph
REVS ; 2500 = 51.2 mph
REVS ; 3000 = 61.4 mph
REVS ; 3500 = 71.6 mph
REVS ; 4000 = 81.9 mph
REVS ; 4500 = 92.1 mph
REVS ; 5000 = 102.3 mph
REVS ; 5500 = 112.6 mph

Personally , for engine longevity , I never rev the engines past 4,750 revs .

.
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Last edited by fifer; 21-04-2015 at 07:10 PM.
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Old 21-04-2015, 07:20 PM
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On the 850 Reliant engine if the timing is set to Top Dead Centre the top speed will not be much more than 60 mph .
The engines need to be set to around 10 degrees Before Top Dead Centre as a starting point .
Since each engine is different you might find that one engine runs better around 13 to 14 degrees Before Top Dead Centre where another might be better around 8 degrees Before Top Dead Centre .
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Old 22-04-2015, 05:07 PM
ironmike953 ironmike953 is offline
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Thanks fifer for that Information very much appreciated. Speedo cable came but at work so a trip to post office tomorrow. Will fit and report back.
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Old 05-10-2015, 06:57 PM
ironmike953 ironmike953 is offline
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First off sorry for the late reply. Yhe speedo cable came and was fitted.still no speedo. I found out the drive from the gearbox is U S. Got the cable and sspeedo for the bike front end and fitted. Now have a working speedo. The head gasket then went south so that got fixed.cant believe how simple that was.Been riding it about but still no top speed, will try and set the timing asap. PS if I had a pound for every photo that people have taken of me on the trike id be rich. Think the hornd helmet helps..
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Old 06-10-2015, 05:41 PM
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What part of the country are you in Mike? I know a few Reliant owners around who might be able to help?
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Old 06-10-2015, 06:49 PM
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Regarding Ignition Timing , I wrote the following for people who have no mechanical knowledge at all so some of it will be second nature to some of you .
I hope it helps avoid some of the usual problems for folk setting up points ,

https://sites.google.com/site/fifers...gnition-timing
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Old 10-10-2015, 07:33 PM
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Thanks for the info. I live in York.
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Old 11-10-2015, 05:54 PM
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Looks like the head gasket has gone again and the core plug to just for good measure. .so as it's late in the year I will bring forward the strip down. Was hoping to keep riding whilst the wether was good and then rebuild , but its not too be.
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Old 25-01-2016, 09:22 PM
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r
Hi thought I'd update you all on the trike. As the weather as been mild this week end I took off the head again. I did a leak test on the valve chambers, one the petrol poured out and two leaked out after about half an hour. So I dropped the head off for repair. Should have done that test the first time the gasket When't Haven't been idol since it came off the road iv took off and had loads of parts powder coated(BLACK is there eny other colour) and refitted. Starting to look good.
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Old 20-03-2016, 09:16 PM
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So I fitted the head and took it for a quick spin. Still low on power and just didnt seem right.So instead of messing about I bit the bullet and got a power spark unit and a timeing light. Fitted the complete unit with new coil and leads and set the timeing.The thing now flies along. ok 80mph. But happy to ride along at 60mph. Went out today as id onlyl done a quick test yesterday, compared to last year its lke a new trike I even over took a car and caravan so at last its happy days.
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Old 21-03-2016, 01:05 PM
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Well done for persevering. Just in time for spring. Happy days!

Where's the pics?
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