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Zen and the art of TVR Maintenance (with apologies to Robert Persig)

 


The Yin and Yang of problem and fix - part of the fun of TVR ownership.   


This is certainly not intended to be a replacement for the Steve Heath book, and is unashamedly only tested/relevant to my late model (1999 'T') Chimaera 450 (they are all different remember!).  

It is intended to provide some colour pictures and more of a 'duffer's eye view' of some of the things I've come across and how I've fixed them, with a little help from the TVRCC forum, Pistonheads, Mr. Heath and many others.

Date Problem Investigation / Differences to Steve Heath Book Fix
31-May-05

10700 mi

 

Short-person mod fitted to car by previous owner Longer seat bolts fitted to jack seat up by 30 mm Remove bolt; shorten by 300mm, refit, ensuring that washers are refitted to protect GRP floor.

Check bolts a few days later to ensure they are still tight!

31-May-05

10700 mi

 

Reversing light not working Tail light internal fittings behind velcro'd pocket are different to those described in handbook or Heath book

Unscrew light housing - by gripping the outside of threaded housing and twisting in the usual direction.  Found bulb obviously blown

Replace bulb - 21W single filament
01-Jun-05

11000 mi

 

Passenger Door not unlocking from outside

Inside knob still working => electrical rather than mechanical.  Tried various combinations of locking and unlocking, including cycling c/locking overide button on top of internal door opening knob.  

Central locking seemed a little 'confused' - or was it me?  

Checked operation of lock solenoid behind velcro'd carpet behind passenger B-pillar and then checked plunger on door sill as originally advised on Pistonheads! 

Mine has no mating rubber pad on door, but instead a screwed-in metal cup on door.


Removed & inspected plunger switch; metal contact ring appeared to be a little mucky; WD40'd and refitted - no recurrence of problem since
11-Jun-05

11300 mi

 

 

Want to connect I-River MP3 player to Aux port on my factory-fit  Pioneer KEH-P3700R stereo Aux port uses the same multi-connector as the CD autochanger; therefore an additional 'adaptor box' is required.

 

Before removing the radio, activate the 'aux' mode on the setup menu

Remove the Radio, using the standard flat removal tools (mine came with the car!)


Confirm the route through from back of radio to front of dash.  This is accessed at steering column base; 
I used a tent peg to confirm this and then pull through the cable


Next, check the wiring between the back of the radio and the car.  It is important to use a multimeter to identify what each lead REALLY does!

Note my radio does not operate without the ignition on - different to as described by the Heath book

Click the pic for a bigger version:

 

 

Once you've got the wiring right and you've proved it works, then it's time to position it all and put the radio back

Position the box behind the ribbon connectors and flush against the back wall.  

When I'd finished & was test-driving it, I found that the box could be heard happily vibrating when the engine was at idle, so I revisited the box mounting and put a little high temp foam under and behind it - that sorted the vibration, but made the radio fit a little more snug!






This is a Pioneer CD-RB20 - my local ICE store Car Electronics had it in stock (£65) and also supplied advice

 

Hold the 'FUNCTION' button for 2 secs with the unit off.  
This will access the setup menu - page through the options until you get to AUX: OFF - change this to AUX: ON

 

it's amazing what you find in the bottom of your toolbox....
The pulled through lead can then be pushed into the gap between the central console and fed into the space in front of the window switches.

This fused lead initially appeared to be the live from the battery into the radio.  WRONG!  this is the output power from the radio to the CD changer!

Two yellow leads from the adaptor box - one (with no connector) is the power input to the box; the other (with the connector) is power output from the box to the CD changer. 

I connected the earth from the adaptor box to the body of the existing radio unit - works for me!

Watch out for the ribbon connectors!

 


And this proves why you need to test drive a radio modification.  Perhaps 200 miles was a little too much though!!  

 

The finished article

This page has been put together to record what I have done to my car, and to explain and depict this for the information of others.  No responsibility will be accepted for damage to anyone's property if they 'try this at home'.


(c) 2005 Nick Kay     e-mail: nick.kay(at)ntlworld.com