- Sep 4, 2011
- 492
- 284
- 18,935
Yes
I have looked at paper work it has a winterhoff WS3000. If the ball has grease on the ball and the hitch has friction plates could this cause a problem
- Sep 4, 2011
- 492
- 284
- 18,935
- Nov 16, 2015
- 12,251
- 4,429
- 40,935
I am not sure it would cause the vibration, but the tow ball should be grease and paint free, clean both the tow ball and hitch with , a degreaser, brake cleaner is good.
- Nov 11, 2009
- 24,636
- 8,823
- 50,935
Don't diesel twin clutch synchro gearboxes have a DMF then? If they don't my VAG independent needs retraining
- Nov 16, 2015
- 12,251
- 4,429
- 40,935
Fred Drift is booking in folks, , just that I know. Nothing about DMF'sDon't diesel twin clutch synchro gearboxes have a DMF then? If they don't my VAG independent needs retraining
- Nov 11, 2009
- 24,636
- 8,823
- 50,935
A DMF could well be responsible for vibrations under load. All I know about the car is that it's a 2012 Nissan X trail and it is manual. So don't rule out a DMF as an option until you know for certain that the car doesn't have one. But by 2012 DMFs were well established fitments in cars, and some petrol and diesels X trails had them.
- Sep 4, 2011
- 492
- 284
- 18,935
X trail started fitting DMF about 2002 onwards
Around 2012 2013 Kia Sorento DMFs were failing
Around 2012 2013 Kia Sorento DMFs were failing
Last edited:
- Oct 21, 2020
- 382
- 225
- 4,935
Go back to basics, if it’s been stood change the tyres and get them balanced, then start to look elsewhere.
The car is a 2012 2.0 diesel x trail, I don't know wot a DMF is so can't say if it has one or not. But I have just taken it to try again with it empty and still the vibration is still there not as bad, I will be changing the tyres this week and going to get the car suspension looked at just to make sure that is all good.
Any other thoughts would be appreciated
Thanks stephan
- Nov 11, 2009
- 24,636
- 8,823
- 50,935
Hope that the simple steps outline resolve your vibration issue. 🤞
- Nov 11, 2009
- 24,636
- 8,823
- 50,935
- Sep 4, 2011
- 492
- 284
- 18,935
DMF dual mass flywheel is part of the clutch on a manual gearbox car. Being dual mass they go out of balance as wear takes place causing vibration.
- Nov 16, 2015
- 12,251
- 4,429
- 40,935
Isn't caravanning wonderful, I had a Vectra 2.2 Diesel, after 30 miles towing , it would go into limp home mode. Split intake air hose.
So maybe it's your car and NOT the caravan.
So Good Fred Drift between Birdman and OC. ,
- Mar 14, 2005
- 18,992
- 4,218
- 50,935
It doesn't matter who made the tow bar/ball, it's important that it is fitted correctly, and that its fixings are tight. with no metal fatigue under the car.
The placement of an awning or any load inside a caravan will affect the applied nose load on the coupling. In fact you trim the nose load by deliberately relocating load items within the caravan. If you need to reduce the nose load you move items from in front of the axle to behind the axle and vice versa. Moving an item like an awning cam make a significant difference to your nose load.
Getting the nose load correct can make a world of difference. Thank you for giving the "S value" limits for both the car and the trailer. Please note I wrote" limits", they are not targets. Your limit for this outfit is 70kg measured vertically from the ground to the ball cup on the trailer.
The S value is always measured when stationary, as it would be unsafe to attempt to measure the dynamic loads whilst moving. You can be assured the manufacturers have already allowed for the dynamic loading in their specification. It's therefore ill advised to exceed the S value as any excess is also subject to the same F=MA and could surpass the safety margins of the design.
Another aspect of nose load that may surprise you is the measurement height of the hitch. The regulations specify the height of the trailer hitch should be at the same height as when the trailer is hitched to the car when all the loads (Luggage, snacks, and people) are in their traveling positions.
Whilst exceeding an S value is not a weight offence, it may be seen as operating a vehicle outside of its safe operating range which is unsafe loading.
I will be shot down by some forum members for being so specific, but I take the view that if you have the opportunity to to do a more precise approach its worth it. you need :-
your bathroom scales,
a polythene bag to slip over the caravans hitch to prevent it marking your scales,
your caravan step, and several copies of magazines to pack under the bathroom scales
a tape measure
Load your caravan and car as if you are about to set off will all the items luggage and people who will be making the trip.
Move the outfit onto level ground and pull up in a straight line. Have someone measure the vertical from the ground to the bottom of the skirt of the hitch. remember the measurement value
Chock the caravans wheels so it can't roll, do not put the hand brake on, Do not deploy the caravan steadies. just use use the jockey wheel.
Uncouple the car and move it out of the way.
Put the poly bag over the hitch. Position the caravans step under the hitch, place scales on top of caravan step, and pack them up with the magazines until the top of the scales is the same as the height that was measured earlier.
Gently lower the jockey wheel so the hitch's skirt rests on the scales. continue to raise the JW off the ground
The weight displayed on the scales will be the nearest you can get to the caravans nose load.
If you have to make adjustments you need to repeat this process. as moving items will change the ride height of the hitch.
I am looking at both but the DMF sound a maybe as when clutch pressed it becomes smooth same going down a hill (engine drivetrain not underload)
- Nov 16, 2015
- 12,251
- 4,429
- 40,935
Fred Drift :Our bathroom scales are totally accurate unless Mrs H uses them
The height of the tow hit hitch by maybe 5 cm will not make a huge difference in the nose weight , unless the caravan is very short and there is a heavy weight high up directly over the axle. . Difference might be 5kg.
- Nov 11, 2009
- 24,636
- 8,823
- 50,935
Mine seem to pass the airline luggage check in test with a margin far less than 10 kg.
- Nov 11, 2009
- 24,636
- 8,823
- 50,935
Still quite insignificant at 5kg, but noseload weighing is still something to be recommended.
TRENDING THREADS
-
-
A frame bike rack on Bailey unicorn 2016 (or there abouts)caravan- Started by fkeates
- Replies: 6
-
-
-
-
-
Facebook
Twitter