3428TM Build Log

3428TM Build Log

Author
Discussion

GAjon

3,736 posts

214 months

Monday 16th October 2023
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All mainstream, I must watch it again, see how it’s aged.


Slow M

Original Poster:

2,737 posts

207 months

Tuesday 17th October 2023
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While you're at it, I highly recommend this one:

Slow M

Original Poster:

2,737 posts

207 months

Saturday 21st October 2023
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Adapter plate is finished. Going to start pulling the body off Monday. These photos are intended to illustrate how much of an obstruction this would been in the under body air flow. I could have faired it in, but that's not an acceptable compromise. This way, the car will have decent ground clearance, guided underbody aero, and I will have dropped a large mass as low as it'll reasonably go. Also, moving the starter back is another way of pulling one heavy item closer to the CG. Besides, having the ring gear as the second lowest part of the undercarriage, after the bellhousing, to be dangling under the car, and the flywheel covered only by a piece of .070 Aluminium made me incredibly nervous.

Slow M

Original Poster:

2,737 posts

207 months

Wednesday 25th October 2023
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Edited by Slow M on Wednesday 25th October 15:01

Slow M

Original Poster:

2,737 posts

207 months

Friday 27th October 2023
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TwinKam

2,989 posts

96 months

Friday 27th October 2023
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Good work.
Nice also to see the Swedish exotica keeping each other company in foreign lands... what plans do you have for the P1800 and the 95?

Slow M

Original Poster:

2,737 posts

207 months

Friday 27th October 2023
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TwinKam said:
Good work.
Nice also to see the Swedish exotica keeping each other company in foreign lands... what plans do you have for the P1800 and the 95?
They're not mine, luckily. I'm not up for a lot more projects in addition to the ones I've already started.

Slow M

Original Poster:

2,737 posts

207 months

Saturday 28th October 2023
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On the right side, I'm going to have to alter the chassis tubing to allow the starter to fit. I emailed the starter/bellhousing manufacturer about a starter that can be oriented in a less obtrusive a way. (With the solenoid above or below it.) That would let me keep the upright tube in place.

On the left, it looks like the outside end of the clutch fork may foul the corresponding upright frame member. That may push me into a hydraulic throwout bearing. Or into modifying the frame, or modifying the clutch fork.

Edited by Slow M on Saturday 28th October 17:54

ivanhoew

978 posts

242 months

Sunday 29th October 2023
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i just realised bernard , have you removed the spare wheel carrier metalwork ?

Slow M

Original Poster:

2,737 posts

207 months

Sunday 29th October 2023
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ivanhoew said:
i just realised bernard , have you removed the spare wheel carrier metalwork ?

Yes, as the front wheel uses five lug and the rear four, I didn't see the point. Will carry a can of fix-a-flat, instead.

ivanhoew

978 posts

242 months

Monday 30th October 2023
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ha , reverse of mine with 5 on the back and 4 on the front ! smile

Slow M

Original Poster:

2,737 posts

207 months

Tuesday 31st October 2023
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ivanhoew said:
ha , reverse of mine with 5 on the back and 4 on the front ! smile
Am I assuming correctly that your strategy for a flat tire is similar to mine?

ivanhoew

978 posts

242 months

Wednesday 1st November 2023
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Slow M said:
m I assuming correctly that your strategy for a flat tire is similar to mine?
no , re the complete lack of a spare,or spray can , my carefully thought out and technically complicated and thorough strategy is to pretend i didn't see it , and drive it anyway .

its a Zen thing.

Slow M

Original Poster:

2,737 posts

207 months

Wednesday 1st November 2023
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ivanhoew said:
no , re the complete lack of a spare,or spray can , my carefully thought out and technically complicated and thorough strategy is to pretend i didn't see it , and drive it anyway .

its a Zen thing.
Sounds highly technical.

Slow M

Original Poster:

2,737 posts

207 months

Wednesday 1st November 2023
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Had to whittle away at the transmission to get the starter to fit. It's going to be interesting to find out exactly where the solenoid ends up.

The depth adjustable clutch fork pivot ball is essential in getting these randomly tossed together parts to work harmoniously.

ivanhoew

978 posts

242 months

Wednesday 1st November 2023
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ThaT almost looks like the starter would go in 180 degrees round , but i guess not quite enough room .

Slow M

Original Poster:

2,737 posts

207 months

Thursday 2nd November 2023
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ivanhoew said:
That almost looks like the starter would go in 180 degrees round , but i guess not quite enough room .
The starter sits inboard of the block outline.
It's easier to see in this image. It has a slight offset (internal idler gear), but it engages with a MUCH smaller ring gear.

Slow M

Original Poster:

2,737 posts

207 months

Thursday 2nd November 2023
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Progress report:


I was racking my brain, last night, about the best way to reinforce the chassis, as the factory opted to leave a number of rectangular sections longingly looking for a little extra triangulation. Then I remembered that I had these photos of a chassis supposedly modified by Bill Jongbloed, in the same manner as he used for his own car.






A little bit of that seems to be overkill, which I only say because I have rudimentary understanding of moment frames.
Nevertheless, I'll probably end up with a very similar result.

Edited by Slow M on Thursday 2nd November 17:58

Slow M

Original Poster:

2,737 posts

207 months

Friday 3rd November 2023
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ivanhoew

978 posts

242 months

Friday 3rd November 2023
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In case it helps Bernard , two other things i did to my car were ,i welded a tube connecting the ends nears the chassis on the front lower wishbones .this made the steering 176.485% lighter .

Also i installed a bit of 2x1 box section ally across the chassis , positioned to sit directly above the nose of the diff casing , with a couple of mm clearance , and cut to follow the shape of the diff casing casting .

This was to control the diff trying to lift its nose and take stress of my rudimentary diff mountings , since my car was a 2500 m and only had the poxy gt6 diff , which i replaced with a lsd tuscan diff .


regards
robert.