cv8 mkIII 112/2454

Here's where to post photos of your cars. We all want to see your Jensens!
Roh
Posts: 518
Joined: Tue Apr 22, 2014 10:20 pm
Location: NSW, Australia

Re: cv8 mkIII 112/2454

Post by Roh »

Damn.

Your doesn't look that low. What tyre size are you running?
1964 Jensen CV-8 II
User avatar
felixkk
Posts: 4150
Joined: Tue Aug 24, 2010 6:19 am
Location: Zurich, Switzerland
Contact:

Re: cv8 mkIII 112/2454

Post by felixkk »

Vredestein 205/70s. The car is maybe a bit lower than standard. Without passengers or luggage I clear the bump.

I tied the manifold together with wire and wrapped it with tin foil, hoping to reduce the fumes in the engine bay and also to dampen the noise. Seemed to work well at first but the tin foil didn‘t hold up too well after all, but it was a 50 minute drive to Andi‘s. I hope those metal flakes can be removed, otherwise I‘ll have to cover the rest of the engine bay with glitter also.

Before:
9A687FAB-4165-4BBE-BC3B-8BDC9B22D312.jpeg
9A687FAB-4165-4BBE-BC3B-8BDC9B22D312.jpeg (162.28 KiB) Viewed 5652 times
After:
126BF3E7-4ED7-4FA9-87BF-5082C93465E2.jpeg
126BF3E7-4ED7-4FA9-87BF-5082C93465E2.jpeg (145.68 KiB) Viewed 5652 times
Felix Kistler
C-V8 112/2454, 541DL 2223849
JOC 9465
Secretary/VP JCC Jensen Car Club of Switzerland

www.jcc.ch / office@jcc.ch
Roh
Posts: 518
Joined: Tue Apr 22, 2014 10:20 pm
Location: NSW, Australia

Re: cv8 mkIII 112/2454

Post by Roh »

Those tyres lower it by 19 mm.
1964 Jensen CV-8 II
User avatar
johnw
Posts: 2013
Joined: Wed Sep 15, 2010 7:38 pm
Contact:

Re: cv8 mkIII 112/2454

Post by johnw »

I would suggest to check the rear silencer mounts and engine mounts as a possible contributor to the break. Engine mounts because a soggy mount allows the exhaust down pipe to droop and a broken mount allows it to hit the footwell floor. Also looking at the cracked manifold in the first picture, the downpipe has sagged several inches when the manifold broke. I like to have my downpipe such that the rear mounts give enough support to keep the downpipe just touching the manifold flange when there are no bolts fitted. This way under normal conditions there is no stress on the manifold. If the exhaust is dragging the manifold down the gaskets keep blowing (if you use them, I don't) and as the manifold is heating and cooling and being hit from underneath it has this constant force pulling it apart exactly where it finally broke. This could have been stress damage building up over years, or in my case months until I finally fixed the brackets. I am sure Jensen were thinking of this at least on the Mk1 Interceptor because if you look at the rear silencer mounts there are height adjustable brackets fore and aft, with lock nuts to stop up and down movement.
Have you seen our stolen Jensen FF 119/011 https://twitter.com/jensenffdotcom
User avatar
felixkk
Posts: 4150
Joined: Tue Aug 24, 2010 6:19 am
Location: Zurich, Switzerland
Contact:

Re: cv8 mkIII 112/2454

Post by felixkk »

Thanks guys for your advice, much appreciated! I think the manifold may have already had a hairline crack before the incident.
Felix Kistler
C-V8 112/2454, 541DL 2223849
JOC 9465
Secretary/VP JCC Jensen Car Club of Switzerland

www.jcc.ch / office@jcc.ch
User avatar
felixkk
Posts: 4150
Joined: Tue Aug 24, 2010 6:19 am
Location: Zurich, Switzerland
Contact:

Re: cv8 mkIII 112/2454

Post by felixkk »

Picked the car up late last night- Andi mounted new cast iron headers from Robeys. When Andi and I were speaking of mounting new ones I had assumed they would be stainless steel ones, I didn't know that Robeys had new cast iron ones. John, to answer your question: as I gather it is not impossible to get the veteran MOT with stainless steels ones, but it is risky.
IMG_0213.jpeg
IMG_0213.jpeg (156.01 KiB) Viewed 5538 times
IMG_0211.jpeg
IMG_0211.jpeg (103.74 KiB) Viewed 5538 times
Felix Kistler
C-V8 112/2454, 541DL 2223849
JOC 9465
Secretary/VP JCC Jensen Car Club of Switzerland

www.jcc.ch / office@jcc.ch
Roh
Posts: 518
Joined: Tue Apr 22, 2014 10:20 pm
Location: NSW, Australia

Re: cv8 mkIII 112/2454

Post by Roh »

Were both manifolds cracked?
1964 Jensen CV-8 II
User avatar
felixkk
Posts: 4150
Joined: Tue Aug 24, 2010 6:19 am
Location: Zurich, Switzerland
Contact:

Re: cv8 mkIII 112/2454

Post by felixkk »

Rohan Christmas wrote:Were both manifolds cracked?
Don't think so, no... Are you wondering why we replaced both of them? Swiss way of doing things I assume :D Seriously, last time the manifold broke was 2017 at the Germany meet (on the Autobahn) and I had to get the car transported back to Switzerland. Enough is enough...
Felix Kistler
C-V8 112/2454, 541DL 2223849
JOC 9465
Secretary/VP JCC Jensen Car Club of Switzerland

www.jcc.ch / office@jcc.ch
User avatar
felixkk
Posts: 4150
Joined: Tue Aug 24, 2010 6:19 am
Location: Zurich, Switzerland
Contact:

Re: cv8 mkIII 112/2454

Post by felixkk »

Just spoke to Andi: the manifold did not break along the existing crack. Comforting in the sense that I was blaming myself for not replacing the manifold when we noticed the crack...
6a6dbd0c-93c4-4522-b5cf-62e94ab56f0d.jpg
6a6dbd0c-93c4-4522-b5cf-62e94ab56f0d.jpg (78.36 KiB) Viewed 5499 times
Felix Kistler
C-V8 112/2454, 541DL 2223849
JOC 9465
Secretary/VP JCC Jensen Car Club of Switzerland

www.jcc.ch / office@jcc.ch
User avatar
johnw
Posts: 2013
Joined: Wed Sep 15, 2010 7:38 pm
Contact:

Re: cv8 mkIII 112/2454

Post by johnw »

The new manifolds have a more substantial look about them, perhaps an improved material? There are also bosses on the new ones for a heat shield. It would be interesting to monitor under bonnet temperatures, and then fit an etched stainless "Jensen CV8" or some such heat guard and see if temperatures around the wiring harness and brake servo are kept lower. Plug leads seem to hold up well these days. Here is an FF manifold for comparison with the original heat shields fitted either side of the downpipe flange.
Attachments
IMG_0642.jpg
IMG_0642.jpg (150.45 KiB) Viewed 5457 times
Have you seen our stolen Jensen FF 119/011 https://twitter.com/jensenffdotcom
User avatar
felixkk
Posts: 4150
Joined: Tue Aug 24, 2010 6:19 am
Location: Zurich, Switzerland
Contact:

Re: cv8 mkIII 112/2454

Post by felixkk »

0CA39FDC-6DB6-4BC0-A7D6-83F44854F701.jpeg
0CA39FDC-6DB6-4BC0-A7D6-83F44854F701.jpeg (119.21 KiB) Viewed 5317 times
Trackday organized by Friday Classic at the Anneau du Rhin 2019 (https://www.joc.org.uk/forum/viewtopic.php?f=2&t=29356" onclick="window.open(this.href);return false;)
Felix Kistler
C-V8 112/2454, 541DL 2223849
JOC 9465
Secretary/VP JCC Jensen Car Club of Switzerland

www.jcc.ch / office@jcc.ch
User avatar
felixkk
Posts: 4150
Joined: Tue Aug 24, 2010 6:19 am
Location: Zurich, Switzerland
Contact:

Re: cv8 mkIII 112/2454

Post by felixkk »

Went filming today on the Klausenpass. Just as we were finishing up (after 4 hours), the drone got caught in one of the trees below the car on the first picture- with all the data in the drone... Waiting for a mountain climber to come and see if we (he!!) can recover it...
600ECD2E-0218-4F89-9B68-445F7FAFC136.jpeg
600ECD2E-0218-4F89-9B68-445F7FAFC136.jpeg (312.78 KiB) Viewed 5180 times
23B5C262-DB9F-4B1E-8F34-96A2D978E894.jpeg
23B5C262-DB9F-4B1E-8F34-96A2D978E894.jpeg (286.75 KiB) Viewed 5180 times
34CD35AF-E7CB-43FC-A84D-E0D8CB362C10.jpeg
34CD35AF-E7CB-43FC-A84D-E0D8CB362C10.jpeg (278.07 KiB) Viewed 5180 times
90878DDF-A095-405C-931F-59D04ED9ACC6.jpeg
90878DDF-A095-405C-931F-59D04ED9ACC6.jpeg (202.18 KiB) Viewed 5180 times
Felix Kistler
C-V8 112/2454, 541DL 2223849
JOC 9465
Secretary/VP JCC Jensen Car Club of Switzerland

www.jcc.ch / office@jcc.ch
User avatar
VFK44
Co-Administrator
Posts: 9219
Joined: Wed Jan 10, 2007 10:04 pm
Location: Epping Essex UK
Contact:

Re: cv8 mkIII 112/2454

Post by VFK44 »

Good luck!

Are those barriers stronger than they look? :shock:
"Now that chassis number is particularly interesting ‘cos it’s the one after the one before, which is the one after mine, not many people know that"
Stephen, Epping, Essex
User avatar
felixkk
Posts: 4150
Joined: Tue Aug 24, 2010 6:19 am
Location: Zurich, Switzerland
Contact:

Re: cv8 mkIII 112/2454

Post by felixkk »

Thanks Stephen. Not sure what those barriers are for, many have died there. Two locals got the drone for us- hanging in a tree over a really spooky drop. I‘m terrible afraid of that road and had to do it 8 times today for the shoot, and spend another 3 hours there because of that bloody drone...
9C2620F0-48C3-4E0C-8A73-2A7D064612AA.jpeg
9C2620F0-48C3-4E0C-8A73-2A7D064612AA.jpeg (342.46 KiB) Viewed 5185 times
AD770E38-4703-43E5-A12E-C59C894AAA4A.jpeg
AD770E38-4703-43E5-A12E-C59C894AAA4A.jpeg (298.67 KiB) Viewed 5185 times
Felix Kistler
C-V8 112/2454, 541DL 2223849
JOC 9465
Secretary/VP JCC Jensen Car Club of Switzerland

www.jcc.ch / office@jcc.ch
User avatar
Grant
Posts: 5166
Joined: Tue Nov 30, 2010 1:11 pm
Location: surrey

Re: cv8 mkIII 112/2454

Post by Grant »

Man AliveImage.. how the hell did you find that loony Felix? :shock:
He's so brave and a blessing for youImage, please pass him this>>Image, and one for you too Felix for finding him Image
Manual Int&Rag-TopImage
"Monkey Man"sig RegistrarImage
Image
Post Reply

Return to “Members' Cars”