Home 
Home Search search Menu menu Not logged in - Login | Register
> Jensen Healey & Jensen GT Tech > Projects > GT 30071 Rolling Restoration

 Moderated by: Greg Fletcher Page:  First Page Previous Page  1  2   
New Topic Reply Printer Friendly
GT 30071 Rolling Restoration  Rating:  Rating
AuthorPost
 Posted: 04-26-2015 01:23 pm
  PM Quote Reply
21st Post
NigelK
Member
 

Joined: 07-16-2014
Location:  
Posts: 164
Status: 
Offline
I finally surrendered to the inevitable and had the Getrag 235/5 removed in favour of a Toyota W58 gearbox from a Lotus Excel. What made the decision for me in the end was the damage to the Getrag input shaft which LotusBits discovered - caused by an incorrectly installed clutch cover. I've had a bespoke leather gear knob made up with the Jensen GT badge, to replace the old one which has the wrong shift pattern it. LotusBits should be cracking on with the W58 installation next week - they'll need to convert it to cable clutch actuation, and fabricate a new gearbox mounting, gear lever extension and propshaft.

Last edited on 08-08-2015 05:34 pm by NigelK

Back To Top PM Quote Reply  

 Posted: 04-26-2015 01:24 pm
  PM Quote Reply
22nd Post
NigelK
Member
 

Joined: 07-16-2014
Location:  
Posts: 164
Status: 
Offline
I'm not yet sure whether the factory fit 3.45:1 cwp diff will be too tall for the W58 gearbox (which is generally taller geared than the Getrag) notwithstanding there'll be more engine torque post upgrade. Different people have different views here, and I reckon it depends whether one's priority is off-the-line performance or quieter motorway cruising. I won't be able to decide until I've got the GT back and lived with it for a while, but as an insurance policy I've just bought a low mileage 3.73:1 cwp axle off a Healey and am cleaning it up, and learning about half shafts and Lockheed drum brakes in the process. So I'll be able to swap out the axle if I want more acceleration off the line.

Last edited on 08-08-2015 05:34 pm by NigelK

Back To Top PM Quote Reply

 Posted: 06-12-2015 05:25 pm
  PM Quote Reply
23rd Post
NigelK
Member
 

Joined: 07-16-2014
Location:  
Posts: 164
Status: 
Offline
Nearly finished! I visited LotusBits this morning, and they reckon they're about 2 weeks away from completing the engine rebuild, which has turned into an engine rebuild / gearbox upgrade / major chassis repair job. The rebuilt 907/912HC hybrid is back in the car, the gearbox is installed with the custom gearbox mounting and shifter, the o/s rearmost sub-frame mounting in the chassis rail has been repaired and all the sub-frame / chassis bushings replaced so the car doesn't lean to one side anymore, and the big bore exhaust is trial-fitted.

Last edited on 08-08-2015 05:33 pm by NigelK

Back To Top PM Quote Reply  

 Posted: 06-12-2015 05:26 pm
  PM Quote Reply
24th Post
NigelK
Member
 

Joined: 07-16-2014
Location:  
Posts: 164
Status: 
Offline
Mike Taylor and his team have also had to replace the oil cooler which was shot and would have distributed metal particles around my newly rebuilt engine, and discovered that the original engine had 3x Lotus 9.5:1 CR pistons, and 1x JH 8.0:1 piston fitted. I was wondering why the compression readings from one cylinder were a little low. They've also replaced the engine mountings, one of which was held together with silicone sealant. This, together with the incorrectly attached clutch plate which had destroyed the spigot bearing and damaged the gearbox input shaft, which was discovered when the engine and gearbox were first pulled at the start of the job, makes me relieved I decided to get all these major works done before putting some serious miles on the car.

Last edited on 08-08-2015 05:32 pm by NigelK

Back To Top PM Quote Reply

 Posted: 06-12-2015 05:27 pm
  PM Quote Reply
25th Post
NigelK
Member
 

Joined: 07-16-2014
Location:  
Posts: 164
Status: 
Offline
I am particularly pleased with the new exhaust - it is custom made by LotusBits for the Lotus Excel (http://lotusbits.blogspot.co.uk/2010/11 ... steel.html) but they've also fabricated a version for the Jensen Healey / GT with two boxes (together longer than the original three boxes, so hopefully quieter), which looks pretty much identical from the rear of the car, but looks the absolute bee's knees from underneath, as you can see from the pictures...

Last edited on 08-08-2015 05:31 pm by NigelK

Back To Top PM Quote Reply  

 Posted: 06-27-2015 10:36 pm
  PM Quote Reply
26th Post
Michael Fishelson
Member
 

Joined: 05-12-2015
Location:  
Posts: 9
Status: 
Offline
Looks lovely,

I was thinking of an internal antenna for my car as well.
Does yours work well and if so what is the make of the unit?
Thanks for your help,
Michael

Back To Top PM Quote Reply

 Posted: 06-27-2015 11:41 pm
  PM Quote Reply
27th Post
NigelK
Member
 

Joined: 07-16-2014
Location:  
Posts: 164
Status: 
Offline
Hi Michael

I used one of these - http://www.retrosound.com/product-p/1950-54-hpa1.htm

Despite the manufacturer claims that it works "almost anywhere", it did not provide good radio reception when I installed it under the dash. Possibly too much EM interference from the old electrical components under the bonnet. It worked much better when I reinstalled it on the rear inner wing behind the vinyl trim, and ran the cable along the side of the sill under the foot well carpet. The reception is still not 100%, but it's good enough (for what is quite a noisy car), and they are phasing out FM radio here in the UK anyway, so as from next year it'll be MP3 only...

Hope this helps.

Best wishes,
Nigel

Back To Top PM Quote Reply  

Current time is 11:51 pm Page:  First Page Previous Page  1  2     
> Jensen Healey & Jensen GT Tech > Projects > GT 30071 Rolling Restoration Top




UltraBB 1.172 Copyright © 2007-2011 Data 1 Systems