551 A race oddity

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BigBobPilot
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551 A race oddity

Post by BigBobPilot » Sun Aug 16, 2020 11:36 pm

Only a little trimming was needed to the gear lever hole to give clearance to the B&M quick shift
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The position is pretty much as it was before
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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 » Sun Aug 16, 2020 11:45 pm

When I modified the LH inner wheel arch, I didn't leave enough clearance for the tyre, so it made it's own clearance
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There is plenty of room to the boost pipe
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After cutting the hole a bit larger and making a card template, I've screwed a thin piece of GRP in place & glassed it underneath.
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I need to finish it off on the top side & slap some paint on there before fitting the turbo inlet pipe & boost pipe.


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 » Mon Aug 17, 2020 6:41 am

I love that cooling assembly, brilliantly engineered and simple too.


JC

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philhoward
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551 A race oddity

Post by philhoward » Mon Aug 17, 2020 7:37 am

Very OEM 8)


Phil Howard
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BigBobPilot
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551 A race oddity

Post by BigBobPilot » Sat Sep 12, 2020 10:32 pm

I had the engine running, but there was an oil leak. I have a different oil pressure sensor for my digidash for pressure reading & warning light, it needs an adapter due to different threads, this split open.
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With this replaced, I could run the engine, where-upon it became apparent that I had oil leaks from both the front & rear crank seals. Both seals were replaced when I rebuilt the engine, so that's not good. Especially as the only way to change the rear one is to pull the engine & box back out again.

Once I got to the rear one, it was definitely the seal leaking. I found nothing visibly wrong with it.
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The cam belt has to come off to get at the front seal, this one did have a problem, the lip was folded over & had subsequently torn. I didn't notice it had folded when I fitted it, so that's an error on my part, but I wouldn't expect that to happen. The deformed outer was because I didn't take a photo before I'd jabbed a screwdriver at it.
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g

I'd not knowingly scrimped on the seals, they were from Conceptua. However, I've bought genuine Nissan ones this time round.

The engine is now back in again and is so far leak free. What a pain repeating a job.


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 Sep 12, 2020 10:57 pm

Before I took the engine out again for the oil leaks, I'd also been chasing a misfire at idle that didn't used to be there. I thought it might be a connector issue as the engine harness had been off & back on again. I went through all the ignition coil & injector plugs & took the terminals out making sure all contacts were tight. This made no difference.

I then spent a bit of time looking at the ignition coils & I've bought some new ones.

The engine I had in initially has slight different coils than the ones that were on the spare engine I rebuilt, but I'd used the same coils I had in before. This is what I have learnt:

Early coil part no. 22433 59S11 it has a short spring with 0.3mm diameter wire & a graphite contactor on the end where it fits to the spark plug top

Later coil part no. 22433 59S12 has a longer spring with 0.4mm diameter wire & no graphite contactor but the spring is wound to a flat where it contacts the spark plug. 3 of the 4 had nasty corrosion in the spark plug connector & 2 had missing springs.

Uprated coils (Superforma Coilpacks) also have the long spring with 0.5mm diameter wire & no graphite contactor. The spring is a tight fit in the coil outlet.

Here they are running in order from left to right.
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The rubber boots are also a much tighter fit to the head than the old originals.

With the engine fired up, I now have a smooth clean idle, which is nice.

For anyone interested, the Superforma Coilpacks were from JDM garage (as were the Nissan crank seals):

https://www.jdmgarageuk.com/electrical/ ... packs.html


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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Corky
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551 A race oddity

Post by Corky » Sun Sep 13, 2020 6:44 am

Regarding oil seals, I’ve got three sets here. Brown which didn’t seem to have a makers name on (felt too hard and not very pliable and almost impossible to fit into the carriers, eBay purchase and not used), blue and grey colour which are Reinz (very pliable and were tight over the crank and into the oil pump and rear carrier, used in engine 1), and black coloured which are Nissan and somewhere in between the other two for pliability and fit (used in engine no2).

If I was buying again, I’d probably buy Reinz seals.

You may already know this, but on the DET both front crank and cam seals are the same part.


Steve
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BigBobPilot
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551 A race oddity

Post by BigBobPilot » Sun Sep 13, 2020 9:41 am

Yep, I know about the common cam & front crank seal.


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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