Plenum bolts with washers?

Plenum bolts with washers?

Author
Discussion

ianwayne

Original Poster:

6,244 posts

267 months

Wednesday 12th December 2018
quotequote all
When I removed my plenum for sprucing up, I noticed that there were no washers under the securing bolts. Kits online suggest a washer should be in place, others an additional spring washer too. It was last assembled at a specialist. What is the general consensus out there?



Sardonicus

18,928 posts

220 months

Wednesday 12th December 2018
quotequote all
Flat washer but no spring washer

Classic Chim

12,424 posts

148 months

Wednesday 12th December 2018
quotequote all
What Simon says smile
Stainless cost pennies and sets it off nicely and no longer rust wink

Might need to click on the pic and view it in thumbsnap to get a sharper image but you get the idea. I really like them thumbup




Steve_D

13,737 posts

257 months

Wednesday 12th December 2018
quotequote all
To make a nice job replace the bolts and washers with stainless.
Plain washer no spring washer.

Steve

ianwayne

Original Poster:

6,244 posts

267 months

Thursday 13th December 2018
quotequote all
Thanks all. I touched then up with some silver paint, but you're right, stainless would be better. I asked because all these kits on fleabay show spring washers:
https://www.ebay.co.uk/sch/i.html?_from=R40&_t...

Sardonicus

18,928 posts

220 months

Thursday 13th December 2018
quotequote all
Their wrong we're right wink just bin the spring washers

ianwayne

Original Poster:

6,244 posts

267 months

Thursday 13th December 2018
quotequote all
I'd considered buying the bolts and washers separately to save a few quid but the standard M8 washers (form A or form B) are 16mm o/d which is too wide!

All those kits seem to have standard M8 washers that won't fit in the aperture between the bolt hole and the plenum body, whereas the spring washers seem to have a narrow enough diameter to be used. Can't seem to find any 'narrow' M8 washers. Imperial equivalent too wide as well.

Where did you get M8 washers with an o/d of less than the standard 16mm?



Edited by ianwayne on Saturday 15th December 12:53

ianwayne

Original Poster:

6,244 posts

267 months

Saturday 15th December 2018
quotequote all
I found a listing with the required M8 washers on them, o/d of only 14.7 mm. Now to try and find them on their own!

https://www.ebay.co.uk/itm/M2-5-M3-M4-M5-M6-M8-SEM...tongue outf:0

phillpot

17,105 posts

182 months

Saturday 15th December 2018
quotequote all
Use spring washers and bend flat if you don't want the springyness scratchchin

ianwayne

Original Poster:

6,244 posts

267 months

Saturday 15th December 2018
quotequote all
Genius! I can get 10 on ebay in stainless for 99p. smile There's no rush to do the job in this weather anyway.

There used to be a shop that sold nuts bolts and washers loose near me, but no more frown

lancepar

1,011 posts

171 months

Saturday 15th December 2018
quotequote all
ianwayne said:
There used to be a shop that sold nuts bolts and washers loose near me, but no more frown
I see you are in the West Midlands, was that shop Stones in Brierley Hill?
If so there are still some places that sell small amounts over the counter that I know to........West Midland Fasteners in Halesowen and Acclaim in Brockmoor but he was thinking of packing it in as well.
Probably others as well.

cool