why i hate Undertrays - Page 9

bl52krz · 28th February 2016, 16:24

Quote:

Originally Posted by Simon W

Have you got a pic of your wooden ramps?

No pics but I can tell you what/ how I made them. Scaffold board cut into three unequal pieces. Block of wood 3 inches thick by 2foot long,screwed to scaffold board at one end. Fix a piece of wood on the end of the board to stop you going off the end when you drive on it.Place on floor with the thick block of wood away from car wheel on the floor, and just drive up onto the ramp. had mine quite a few years now. Cost next to nothing. I am thinking of making another one now.

bikerdude666 · 28th February 2016, 19:03

I bought the fixings from DMGRS about a year ago, replaced all but 2 of the originals with the new 1's. A couple of months later the last 2 original clips gave up on the way to work 1 night, leaving the rear of the tray dragging on the road. Not having any spare clips with me, or a decent jack, I found a high curb in the car park and drove up onto that, and reattached the it with 4 cable ties, intending to get back under the car when I got home. I never did get round to it and 10 months/12,000miles later, the tray is still holding ok...

Nev The Bear · 28th February 2016, 19:14

I use the following clips and fixings in the undertray on my ZTT, I used the same ones on my 75 I uses to own. Luckily I have never had a problem qith the undertrays.

http://www.ebay.co.uk/itm/ROVER-75-M...344?nav=SEARCH

awvc1 · 28th February 2016, 20:32

Just attached mine again with 6 m8 bolts. Hopefully that will be the end of all this.

Simon W · 28th February 2016, 22:59

Quote:

Originally Posted by bl52krz

No pics but I can tell you what/ how I made them. Scaffold board cut into three unequal pieces. Block of wood 3 inches thick by 2foot long,screwed to scaffold board at one end. Fix a piece of wood on the end of the board to stop you going off the end when you drive on it.Place on floor with the thick block of wood away from car wheel on the floor, and just drive up onto the ramp. had mine quite a few years now. Cost next to nothing. I am thinking of making another one now.

'Cut scaffold board into three unequal pieces'

The way I read it is the longest piece (A) is on the ground, the second longest piece (B) is bolted to A, and the shortest piece (C) is on top and bolted to B - thereby creating a 'staircase' with three steps. Is that right?

murphyv310 · 29th February 2016, 09:38

Hi.
For a long time between the two cars mine was attached with cable ties, totally reliable! I bought the Stainless bolt kit from Mat for the undertray but added much larger diameter stainless washers to increase the surface area holding the tray, again no troubles and a beautifully clean engine and under bonnet area.

Jules · 29th February 2016, 09:45

Quote:

Originally Posted by murphyv310

Hi.
For a long time between the two cars mine was attached with cable ties, totally reliable! I bought the Stainless bolt kit from Mat for the undertray but added much larger diameter stainless washers to increase the surface area holding the tray, again no troubles and a beautifully clean engine and under bonnet area.

Trouble with washers which are too large, if you hit a speed bump slightly too fast, the weakest link has to give way.
Either much bigger chunks out of the tray or destroyed clips

Simon W · 29th February 2016, 10:41

Quote:

Originally Posted by murphyv310

Hi.
......I bought the Stainless bolt kit from Mat ...

I can't find any stainless ones on the website - http://www.dmgrs.co.uk/products/rove...0050-kzm000050

Jules · 29th February 2016, 10:49

There's plenty of Stainless screws and bolts on the market but no one seems to make a stainless spire captive nut.

So for now we use OEM clips packed with grease on the subframe.
They last a good 10 years then.

Fitting new ones dry you are just asking for trouble

Steve1966 · 29th February 2016, 11:27

I find that if you fit a couple of the screws into the front bumper and then slide an empty 5 litre screenwash bottle under the tray it is the perfect height to hold the tray in position so you can fit the remaining screws with one hand. I've never had one come loose and it takes less than 5 minutes to fit using this method.

It is actually there to enable the vehicle to pass the 'Pass by noise' legislation. Without it the car is too noisy. The 1.8 being generally quieter can cope with the shorter tray. As mentioned it also has the added benefit of aerodynamics, fuel economy, and keeping the engine bay clean.

Steve.

28th February 2016, 20:32	#84
awvc1 Posted a thing or two Rover 75 Saloon Join Date: Jan 2015 Location: Essex Posts: 1,177 Thanks: 221 Thanked 258 Times in 196 Posts	Just attached mine again with 6 m8 bolts. Hopefully that will be the end of all this. __________________ White Gold ConnSE, 2003 Mods: FBH Revotec Fan Inline 'stat Xenon lights + washers BMW MK4 satnav, clock mod, BT ulf, 16:9 screen & TV upgraded BM54 + BT Aux-in Miracast box Glasses holder Flip Key Spyhole +Jules plenum shield PPD - badges,rear plinth, carpeted heater panels, anchor bolts, reflectors Walnut Dash, handbrake+gearshift Twin Horns Drivers cupholder HK Speakers Chrome bullet mirrors Digital speedo LED interior bulbs Resler interface USB charging sockets x2

29th February 2016, 09:38	#86
murphyv310 This is my second home Hyundai i10 998cc Join Date: Mar 2012 Location: Kilmarnock Posts: 6,602 Thanks: 2,088 Thanked 2,298 Times in 1,349 Posts	Hi. For a long time between the two cars mine was attached with cable ties, totally reliable! I bought the Stainless bolt kit from Mat for the undertray but added much larger diameter stainless washers to increase the surface area holding the tray, again no troubles and a beautifully clean engine and under bonnet area. __________________ Cheers from Trevor MM0KJJ

29th February 2016, 10:49	#89
Jules This is my second home ZT 260 SE Twilight and 10 other 75 ZT's :O Join Date: Jan 2007 Location: Conwy NORTH WALES Posts: 11,094 Thanks: 512 Thanked 1,116 Times in 763 Posts	There's plenty of Stainless screws and bolts on the market but no one seems to make a stainless spire captive nut. So for now we use OEM clips packed with grease on the subframe. They last a good 10 years then. Fitting new ones dry you are just asking for trouble __________________ [SIGPIC][/SIGPIC] Newbies do now!! 1. Plenum drains..all 3 or 4 year dependent 2. Cooling fan..All speeds functioning 3. Bonnet cable divider block

29th February 2016, 11:27	#90
Steve1966 Loves to post 2000 W Rover 75 Saloon 1.8 Man Club (SE) Join Date: Mar 2012 Location: Warwickshire Posts: 436 Thanks: 66 Thanked 95 Times in 48 Posts	I find that if you fit a couple of the screws into the front bumper and then slide an empty 5 litre screenwash bottle under the tray it is the perfect height to hold the tray in position so you can fit the remaining screws with one hand. I've never had one come loose and it takes less than 5 minutes to fit using this method. It is actually there to enable the vehicle to pass the 'Pass by noise' legislation. Without it the car is too noisy. The 1.8 being generally quieter can cope with the shorter tray. As mentioned it also has the added benefit of aerodynamics, fuel economy, and keeping the engine bay clean. Steve. __________________ Jobs Done since (Apr 2012): Spyhole, Thermostat, IMG (x2), Front ARB Drop links (x3 pairs), Rear Damper, Coils/HT Leads, Heater Matrix, Unions, 13x tyres, Gearbox Oil, Full Service (x3), Water pump & belts, LH/RH lower arm & bushes, Front/Rear pads/Discs, Fr door finishers, Track Rods, Jule's intake tube, Clutch, Slave, DMF (ouch), 1 1/2 exhausts, front springs/top mounts, Jule's Fan upgrade/condenser, reverse gear switch, OSR upper arm, spring, and sill welding. 78,000miles (175,600m total).

28th February 2016, 19:03	#82
bikerdude666 Posted a thing or two Jaguar Xe diseasal Join Date: Nov 2011 Location: Little Stanion, Corby Posts: 1,922 Thanks: 363 Thanked 390 Times in 241 Posts	I bought the fixings from DMGRS about a year ago, replaced all but 2 of the originals with the new 1's. A couple of months later the last 2 original clips gave up on the way to work 1 night, leaving the rear of the tray dragging on the road. Not having any spare clips with me, or a decent jack, I found a high curb in the car park and drove up onto that, and reattached the it with 4 cable ties, intending to get back under the car when I got home. I never did get round to it and 10 months/12,000miles later, the tray is still holding ok...

28th February 2016, 19:14	#83
Nev The Bear This is my second home Does not matter Join Date: Mar 2013 Location: . Posts: 3,996 Thanks: 2,397 Thanked 1,575 Times in 987 Posts	I use the following clips and fixings in the undertray on my ZTT, I used the same ones on my 75 I uses to own. Luckily I have never had a problem qith the undertrays. http://www.ebay.co.uk/itm/ROVER-75-M...344?nav=SEARCH