CBuff

Don’t have any first hand experience on the collector spring. But this has been a useful blog on a recent build https://caterham420detailedbuildblog.co.uk/2020/01/26/collector/ also some others https://caterham420detailedbuildblog.co.uk/useful-links/

I’m doing a thorough cleaning and once over tomorrow after this weekends festivities. So I can grab them tomorrow. After you see them happy to get any specifics if you need

I ordered the fuel gauge resistor mod beachman made 1-2 months ago. It shipped within a day or two and I received it a couple days later. I think @CatManDo was doing some work with them. Maybe he could offer some insights.

I like the child labor. Sorry I cant offer much technical expertise. But my 420R was just completed (factory built as I dont have the space). Happy to poke around and take any photos of how mine was put together (60% sure its correct).

Dremel with a polishing ball the "collars" where the axels comes out of the diff. Then coated in CRC. We will see how long it lasts. Will get more aggressive on the spots that were ground down on the diff housing and then paint those areas with POR 15 Top Coat.

Don’t have insights on fly wheel rust for operation. Since my car was new in June I have been tackling some surface rust issues. My coil cover bolts looked similar to your alternator. I replaced them. I am proactively doing some rust prevention on the underside. And the grot traps. Settled on crc. It leaves a yellowish film but seems to be well received https://a.co/d/irGFiMD also am going to paint portions of the diff. Seems like caterham grinds down the stock bmw diff housing in certain spots. But doesn’t paint them. Will grind it down and paint those areas with por 15 top coat. https://por15.com/products/top-coat?variant=39607017504935&currency=USD&utm_medium=product_sync&utm_source=google&utm_content=sag_organic&utm_campaign=sag_organic&utm_source=google&campaign_id=18079280352&ad_id=&utm_medium=cpc&utm_campaign=&utm_content=&utm_term=&gclid=Cj0KCQjw3vO3BhCqARIsAEWblcB-t0V5wM_DxR6_7323rBNvfo-ewPcDzFOalJJwbExk9oppEM9UUigaAjLdEALw_wcB&utm_term=&ad_group_name=&tw_source=google&tw_adid=&tw_campaign=18079280352&gad_source=1&gbraid=0AAAAAC-VAHXlmBFrXN2p_PmH8H_UWjqZF