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(Post Link) post #1 of 24 Old 25-09-07 Thread Starter
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Engine Undertray (156)

Are their better ways to secure the undertray as mine is sagging a bit and I want it to be more secure, or it is that mine is old and the plastic has deformed under the heat and needs to be replaced. Still keeps my Twinnie engine all clean though!!
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Re: Engine Undertray (156)

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Originally Posted by NorthernLad View Post
Are their better ways to secure the undertray as mine is sagging a bit and I want it to be more secure, or it is that mine is old and the plastic has deformed under the heat and needs to be replaced. Still keeps my Twinnie engine all clean though!!
If you want to keep it the best thing to do is replace it with a metal one (about £130 ish) I think it's Autolusso that does them.
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Re: Engine Undertray (156)

Autodelta are the UK distributor for the manufacturers Zeatek Custom Parts
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Re: Engine Undertray (156)

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Originally Posted by Fast frank View Post
If you want to keep it the best thing to do is replace it with a metal one (about £130 ish) I think it's Autolusso that does them.
Sorry not us.

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Re: Engine Undertray (156)

You can use zip ties at key points - it worked for me . . . for a bit till it eventually just fell apart.
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Re: Engine Undertray (156)

I have been running without one for the last 2000 miles, my engine bay still looks as clean as the day I took it off. The speed humps no longer cause embarresment either...
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Re: Engine Undertray (156)

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Originally Posted by symonh2000 View Post
I have been running without one for the last 2000 miles, my engine bay still looks as clean as the day I took it off. The speed humps no longer cause embarresment either...
Same here. Just lose it... Not necessary unless you have the V6 IMO.
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Re: Engine Undertray (156)

It helps if you prop up the lowest point while you tighten the bolts - then the tray is in tension and doesn't droop so much.
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Re: Engine Undertray (156)

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Originally Posted by OperationAlfa View Post
Same here. Just lose it... Not necessary unless you have the V6 IMO.
Hi i have a 156 2.5 v6 with saggy undertray i was thinking of removing it but then i saw your message mentioning not to do it on an imo?

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Re: Engine Undertray (156)

doesnt work as a heat shield too? i wouldnt drive without it...
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Re: Engine Undertray (156)

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Originally Posted by leeattwells View Post
Hi i have a 156 2.5 v6 with saggy undertray i was thinking of removing it but then i saw your message mentioning not to do it on an imo?

Lee
My V6 didn't have an undertray either and it didn't bottom out.. Although it was sportpack car.

I cant imagine the under tray protecting the sump much any way if you did bottom out, as it is very flimsy.

I think it is there to reduce noise and road grime, but a lot of the road grime comes through the front so its effectiveness is limited IMO.
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Re: Engine Undertray (156)

Hi please may i ask what 'IMO' stands for??

thanks

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Re: Engine Undertray (156)

IMO = In my opinion
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Re: Engine Undertray (156)

Thanks, i think that i will get the tray removed.
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Re: Engine Undertray (156)

one thing to note - if you have to get it removed for any reason (access to exhaust, for example) make sure you know what you're doing

I had mine in Kwikfit once and the gadge snapped the bolts off and the thing was virtually hanging off
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Re: Engine Undertray (156)

I believe the tray also keeps a lot of dirt, stones etc away from the timing belt area - this area is very exposed without the tray fitted.

The aluminium tray is a good compromise as you get the protection and 2" more ground clearance than with the plastic tray.
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Re: Engine Undertray (156)

a hanging tray can also scoop up gravel and then it may be thrown about the engine bay

not good I imagine
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(Post Link) post #18 of 24 Old 30-09-07 Thread Starter
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Re: Engine Undertray (156)

Tried to taught the tray up, but to no avail. It just sags. So when off I measured it, so that I have a template. Considering on having one made of BMT plate with upper transverse strength bars bonded/welded in place, so that sagging will not develop. There is no point buying a plastic one, as the same sagging effect will no doubt happen again in 4 to 5 years time. I think a BMS tray would be ideal.
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Re: Engine Undertray (156)

if you have the means, I think that would be worth a pop

agree - no point replacing like for like
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Re: Engine Undertray (156)

autodelta sell the ally trays, ordered mine in july and its still not arrived
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Re: Engine Undertray (156)

Didnt Zeatek once do a discounted group buy?
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I'd love to "borrow" a tray to make a template, or get a paper template somehow. I've not even seen a 156 in NZ with a tray. If someone wouldn't mind making one I can put a cheque in the mail (I have a UK bank account)
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I've been driving my 156 without and undertray for 4 years and the only issue is if you go through a big puddle water gets on the belts and your power steering goes briefly. I also had to replace an auxiliary belt tensioner as the bearing went this was a year after having all belts, pulleys, tensioners and the waterpump done. Could have been a duff tensioner or crap ingested by not having a undertray?
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does anyone know where I can get the bolts that fix the undertray up, I have lost the one that goes in right below the aux belt so its sagging at the back ?

thanks
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