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Location:
Ireland
Registered:
August 2003
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20 Valve Blacktop Timing Belt Tensioner Plz Help
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Mon, 14 March 2005 21:25
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Firstly the car is a 1998 BZ-R 20-Valve Blacktop.
Yesterday I was driving a fairly long journey 5 hours round trip in total, and the car was running fine on the way down and on the way back. Until on the way home I noticed a slight noise from under the bonnet I pulled over to check the noise but it was gone and the engine was seemed to be ticking over fine.
So I came home and parked the car up for a couple of hours, then last night I wanted to go out in the car but when I started it up I got a very unhealthy sound from engine, as normal I was thinking the worst possible things I.E. Big-ends Valves Ect. I switched off the engine and got my brother who is a mechanic to take a look at it he said the noise was coming from inside the timing cover and not the engine, so today he took off the timing cover and the belt is very slack, he says that the timing belt tensioner is gone. Is he correct or could it be something else?
So what I really need is to know firstly is the timing belt tensioner from a blacktop 20-valve the same as one from a 16-valve 4 AG?
If it is can you please give me the part number for the 16-valve tensioner if not can you please give me the part number for the 20-valve tensioner?
Also is it true that if the worst had happened and the timing belt had snapped or skipped that the 20-valve has enough clearance to avoid damage or am I in deep trouble.
Thanks in advance for any help given on this matter.
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Location:
Sydney
Registered:
February 2004
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Location:
Ireland
Registered:
August 2003
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Re: 20 Valve Blacktop Timing Belt Tensioner Plz Help
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Mon, 14 March 2005 21:42
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Thanks very much for that, but please forgive me if I am jumping the gun here but I am still none the wiser if a 16-valve 4AG tensioner will do and what part number I need to order whether it be a 16-valve or a 20-valve tensioner.
Either way thank you for the speedy reply 
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Location:
Sydney
Registered:
February 2004
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Re: 20 Valve Blacktop Timing Belt Tensioner Plz Help
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Mon, 14 March 2005 22:14
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My silvertop 20v looked identical to the 16v 4AGE (and I can't remember for sure, but I think I used my 16v unit when I put mine in).
However, I remember comparing my tensioner with what is written in the blacktop manual (see the link) so I think the blacktop tensioner is different.
As far as part numbers are concerned try: http://www.mr2ownersclub.com/parts.asp#20vst1
There may be something here that helps.
Regards,
Toby
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Location:
Ireland
Registered:
August 2003
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Re: 20 Valve Blacktop Timing Belt Tensioner Plz Help
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Tue, 15 March 2005 08:28
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| tobyoste wrote on Mon, 14 March 2005 22:14 |
My silvertop 20v looked identical to the 16v 4AGE (and I can't remember for sure, but I think I used my 16v unit when I put mine in).
However, I remember comparing my tensioner with what is written in the blacktop manual (see the link) so I think the blacktop tensioner is different.
As far as part numbers are concerned try: http://www.mr2ownersclub.com/parts.asp#20vst1
There may be something here that helps.
Regards,
Toby
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Thanks again Toby, but as you said yourself the silvertop 20V is different to the blacktop 20V and the link http://www.mr2ownersclub.com/parts.asp#20vst1 which gives great details is only for the silvertop unfortunately.
But thank you again for the reply
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Location:
Campbelltown, NSW
Registered:
November 2004
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Location:
Ireland
Registered:
August 2003
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Location:
Campbelltown, NSW
Registered:
November 2004
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Re: 20 Valve Blacktop Timing Belt Tensioner Plz Help
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Tue, 15 March 2005 08:51
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| Keith K wrote on Tue, 15 March 2005 19:48 |
The timing belt has not snapped thankfully, but Just to let you know I was kindly given the part number 13540-16010 for the blacktop timing belt tensioner from Rollamods off another forum.
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i bet ur feeling very relieved 
NOLAN
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Location:
Campbelltown, NSW
Registered:
November 2004
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Location:
Ireland
Registered:
August 2003
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Re: 20 Valve Blacktop Timing Belt Tensioner Plz Help
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Tue, 15 March 2005 09:00
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| Nolan wrote on Tue, 15 March 2005 08:57 |
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Nice one thanks for clearing that up and making me breath a hge sigh of relif.
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MY BAD