551 A race oddity

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CNHSS1
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551 A race oddity

Post by CNHSS1 » Tue Dec 24, 2019 1:48 pm

Someones been on the liquid Christmas cheer already i reckon! :wink:


Racing is life, everything before and after, is just waiting--Steve McQueen
6 time Class Champ, 2006 & 2014 SSSC Champion

RIP Batmobile, await the Rise of Dark Knight 8)
Sabre 'Light Sabre' 360hp!!
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Old and Slow
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551 A race oddity

Post by Old and Slow » Tue Dec 24, 2019 8:18 pm

As Leslie Phillips used to say...
Ding Dong

Yuletide greetings to all.


Philip Needham
Ashley-bodied TR3; '54 Ford Consul; '55 AC 2-Litre Saloon;'65 850 Mini; '70 Ford Zodiac MkIV; XR3i
'81 911SC Targa, '64 Sabre Six

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siw1800
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551 A race oddity

Post by siw1800 » Mon Dec 30, 2019 10:37 pm

That is amazing work! What is with the mega wide centre console?


MGB - Gone
Daimler SP250 - Gone
SE5a - Gone
Sabre Turbo - Gone
Euro Box Estate - Gone
Rover 25 1.4IL - Gone
Company Astra Turbo Diesel Van Gone
Peugeot 307 CC HDI (sorry, I have to admit to LOVING THIS CAR"
Mazda MX5 - When Mother replaces it! - Went to the scrap yard in the sky
Company Peugeot Partner Van
Company Vauxhall cobi van

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BigBobPilot
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551 A race oddity

Post by BigBobPilot » Mon Dec 30, 2019 11:11 pm

siw1800 wrote:
Mon Dec 30, 2019 10:37 pm
What is with the mega wide centre console?
I'm not quite sure what you are referring to. If it's the passenger side floor that is all at the height of the transmission tunnel, that is clearance to the exhaust, which has the muffler where a passenger usually goes.

If it's the switch panel, hhen it's only a bit wider than normal, but has a fuse & relay box in gront of it.

If you go far enough back in the thread (I'm not sure how far), it's all shown in the build.


Ben

SS1 CA18DET race car
Latest owner of V6 coupe SRE 353G
SSSC Champion 2009, driving "Big Bob"
CSCC "Swinging 60s" race series winner in 2011, 2014 & 2015 (Group 2) sharing a Marcos with Iain Daniels

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siw1800
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551 A race oddity

Post by siw1800 » Tue Dec 31, 2019 6:22 am

I have no idea how I managed it, but posted on completely the wrong thread. Sorry.


MGB - Gone
Daimler SP250 - Gone
SE5a - Gone
Sabre Turbo - Gone
Euro Box Estate - Gone
Rover 25 1.4IL - Gone
Company Astra Turbo Diesel Van Gone
Peugeot 307 CC HDI (sorry, I have to admit to LOVING THIS CAR"
Mazda MX5 - When Mother replaces it! - Went to the scrap yard in the sky
Company Peugeot Partner Van
Company Vauxhall cobi van

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BigBobPilot
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551 A race oddity

Post by BigBobPilot » Fri Apr 03, 2020 10:28 pm

I’ve still not touched my SS1 since the last post here. After lots of work to get it out on the track, then a racing debut that was not as smooth as I had hoped for; I needed a break from it, to build some enthusiasm again.

My break consisted of moving on to working on my 1995 Jaguar XJR, a car that I was going to replace with my Scimitar coupe, but then I kept anyway. The plan was that I’d get the welding done and get the car back together by the Jan 2020. Then get back on to the SS1. As ever, I under-estimated the time it would take to get work done, so the XJR was stuck in my workshop with no rear wheels, whilst I was itching to get on with the SS1.

At the same time I wasn’t sure how much racing I’d be able to do in 2020, therefore I wasn’t exactly rushing to get upgrades in place. Now, with the Covid-19 pandemic, the landscape has changed so much over the period of 2 – 3 weeks, who knows what is next. The SS1 is currently in my garage at home & I’m not sure if I can realistically get it to my workshop in the next few weeks. Equally it is increasingly looking like motor sport is a write-off for 2020, so perhaps planning for 2021 is the way to go; with, if possible an outing or two at the end of this year to trial updates.

As an interlude, I thought I’d post some bits & bobs on my XJR work, in the, “Other Car Chat” area:

https://scimitarweb.co.uk/sgwrs/viewtop ... 16#p494716


There will be more coming on the SS1, some bits similar to what CNHSS1 is doing on his Sabre with his suspension mods, that we’ve been chatting about for a while:

https://scimitarweb.co.uk/sgwrs/viewtop ... 0&t=20790

There will be some other mods coming too. To fill up the Covid-19 fallow period, whose got suggestions of what the mods might/should be?


Ben

SS1 CA18DET race car
Latest owner of V6 coupe SRE 353G
SSSC Champion 2009, driving "Big Bob"
CSCC "Swinging 60s" race series winner in 2011, 2014 & 2015 (Group 2) sharing a Marcos with Iain Daniels

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551 A race oddity

Post by CNHSS1 » Fri Apr 03, 2020 10:41 pm

Fix the feckin jag, then the HG on 551 :mrgreen:

Then aero 8)


Racing is life, everything before and after, is just waiting--Steve McQueen
6 time Class Champ, 2006 & 2014 SSSC Champion

RIP Batmobile, await the Rise of Dark Knight 8)
Sabre 'Light Sabre' 360hp!!
Image

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BigBobPilot
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551 A race oddity

Post by BigBobPilot » Sat May 23, 2020 10:19 pm

Well, I’ve finally got round to doing something with my SS1 again, it’s taken a quite a while. As a reminder, at Thruxton, I had a failure which lead to water pouring out the exhaust and scum in the coolant header tank. I symptoms point to a failed head gasket. Rather than pull the head off in the car, I decided to pull the engine & gearbox out, as I wanted to look at the gearbox too. The nose & bonnet are on pins, so come off easily.
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When I made the new front armature, the idea was that the radiator, inter-cooler & oil cooler were all mounted to it. The idea being that I could remove the armature with all the cooling packs still attached, to minimize the amount of dis-assembly when oiking the engine out . This was my first try and on the whole it worked ok. I need to modify the LH upper radiator mount, so I can get to it properly, but the rest was ok, so all this came off as one big lump.
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The engine & box are out
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The gearbox was off & I’ve split it open. There weren’t any specific issues, other than the gear selection being a bit sloppy, so the main job is to change the rear selector casting so I can fir a quick shift.
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I’ll take my engine stand to the workshop tomorrow to make the engine easier to work on, then I’ll get the head off the engine to see what horrors lie within...


Ben

SS1 CA18DET race car
Latest owner of V6 coupe SRE 353G
SSSC Champion 2009, driving "Big Bob"
CSCC "Swinging 60s" race series winner in 2011, 2014 & 2015 (Group 2) sharing a Marcos with Iain Daniels

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BigBobPilot
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551 A race oddity

Post by BigBobPilot » Sun May 24, 2020 11:00 pm

I was kind of preparing myself for more than just a blown head gasket, which is fortunate.

It was clear after taking the manifolds off the engine, that #4 was the problem cylinder but when the head came off, the firing ring on the gasket is a very funny shape. #4 on the left (or if it get rotated, the opposite end to the cam belt)
20200524_180942.jpg
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And a closer view on #4, with clear blowing across to the water ways
20200524_180949.jpg
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The piston crowns aren’t too clever, with #3 being the worst
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The real kick in the teeth though is the cylinder head, it’s got some serious erosion in the head on #4 & #3, with #4 the worst:
20200524_181205.jpg
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The rust on the valve head is due to the water form blowing across to the water jacket.

It looks like it’s due to detonation, which was probably when I had very hot running, on a very hot day at Brands Hatch. I didn't do a lot to this engine before chucking lots of abuse at it. It just reinforces that it's worth doing a proper build on an engine, especially whn it's going to be put under some strain.

Fortunately I have spare engine, with forged pistons, that will be seeing some attention very soon.


Ben

SS1 CA18DET race car
Latest owner of V6 coupe SRE 353G
SSSC Champion 2009, driving "Big Bob"
CSCC "Swinging 60s" race series winner in 2011, 2014 & 2015 (Group 2) sharing a Marcos with Iain Daniels

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551 A race oddity

Post by efi_sprintgte » Mon May 25, 2020 7:08 am

Does your set up have/have provision for knock sensors?

Gutting but predictable I suppose, good luck mate.


JC

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551 A race oddity

Post by BigBobPilot » Mon May 25, 2020 8:41 am

Yes, it has a knock sensor. Although I did pull in when it got hot, I guess the damage was done.


Ben

SS1 CA18DET race car
Latest owner of V6 coupe SRE 353G
SSSC Champion 2009, driving "Big Bob"
CSCC "Swinging 60s" race series winner in 2011, 2014 & 2015 (Group 2) sharing a Marcos with Iain Daniels

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BigBobPilot
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551 A race oddity

Post by BigBobPilot » Mon May 25, 2020 10:41 am

Spare dug out:
20200525_103856.jpg
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Ben

SS1 CA18DET race car
Latest owner of V6 coupe SRE 353G
SSSC Champion 2009, driving "Big Bob"
CSCC "Swinging 60s" race series winner in 2011, 2014 & 2015 (Group 2) sharing a Marcos with Iain Daniels

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BigBobPilot
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551 A race oddity

Post by BigBobPilot » Mon May 25, 2020 11:06 pm

From now on engine #1 is the one that was in the car, engine #2 is the spare I’ve had in my garage for a couple of years.

I cleared away all the bits from engine #1, cleaned the sump, which is modified with a windage plate, so I will re-use that. Checked the crank, which has remained in great shape. Put the sump on, put the head back on with a couple of bolts & stored it under the bench for now.

I’d already put the gearbox back together with a couple of bolts & moved it to one side, so I had a clear bench for stripping down engine #2. This was going to be the basis if my next stage engine, but never mind…

The head looks a lot happier than the one from #1, even if it’s a bit sooty, looking like it had been running a bit rich. The engine had been built with a multi layer steel gasket.
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It’s got forged pistons and the standard rods have clearly had a bit of work for balancing them.
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The bores on the block are all good, I’ll just have to take the piston rings off & check the ring gaps.

The cam belt pulley on the crank put up a serious resistance to coming off, but most of the engine is stripped down now.
20200525_202043.jpg
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Next up, I need to start cleaning everything up & check the block deck & head for flatness, get some gaskets & core plugs ordered etc.


Ben

SS1 CA18DET race car
Latest owner of V6 coupe SRE 353G
SSSC Champion 2009, driving "Big Bob"
CSCC "Swinging 60s" race series winner in 2011, 2014 & 2015 (Group 2) sharing a Marcos with Iain Daniels

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BigBobPilot
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551 A race oddity

Post by BigBobPilot » Sat May 30, 2020 11:49 pm

I’ve been doing some cleaning today. After taking the core plugs out the block & scraping off gaskets, I liberally applied Jizer de-greaser to the block & the gearbox. Followed by getting the pressure washer out . It’s a good job it was a nice sunny day, as this is always a messy wet job, but I quickly dried out in the sunshine. After getting most of the old oil off, next up was an application of paint stripper, then more pressure washing, followed by another round of the same. I now have a nice clean block, that now looks like a lump of scrap.
20200530_180330.jpg
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I’ll get a wire wheel around it to take any remaining loose bits of old paint off before re-painting it. The water inlet pipe looks a bit crusty inside in that photo too. The bores are good & will just need a run-through with a glaze buster to clean them up.

After the pressure washing, it was all blown down with an airline & WD40 liberally applied to the machined surfaces & down the oil ways.

I’ve started cleaning up other parts too, but more to do. I also need to order some gaskets, bearings core plugs etc. for the re-assembly. Although the pistons, con-rods, and crank have clearly been balanced, I’ll have to find somewhere open that can do balancing, as it will have different flywheel, clutch & front pulley (from the original engine). I'll have to take a closer look at the gearbox too, to see what bits need to be replaced.


Ben

SS1 CA18DET race car
Latest owner of V6 coupe SRE 353G
SSSC Champion 2009, driving "Big Bob"
CSCC "Swinging 60s" race series winner in 2011, 2014 & 2015 (Group 2) sharing a Marcos with Iain Daniels

efi_sprintgte
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551 A race oddity

Post by efi_sprintgte » Sun May 31, 2020 7:50 am

What’s the plan? Build one engine out of the best bits left or new pistons and rods etc?


JC

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