F

Foxoval

New Member

• Yesterday at 12:13

• #1

I am changing my fuel filter and housing as the last one cracked and these two bolts are refus to budge. One is just spinning and the other is stuck fast. Any ideas welcome on how to get them both out

 

bankz5152

Well-Known Member

• Yesterday at 12:24

• #2

Soak in plus gas. Then buzz gun

 

miktdish

Guns n Chainsaws

• Yesterday at 14:59

• #3

Alternatively cut the heads off with a mini grinderette/dremmel or drill them out.
I believe they are riv-nuts (which is why one is spinning).

Punch the nut in/drill them out and tap the chassis fitting new stainless/galvanised bolts with lots of waterproof grease.

 

A

Anaconda

Well-Known Member

• Yesterday at 15:03

• #4

Really it would be a good idea to take the mount plate off and deal with the rusty chassis, might need to get the welder out by the looks of it.

 

F

Foxoval

New Member

• Yesterday at 15:53

• #5

miktdish said:

Alternatively cut the heads off with a mini grinderette/dremmel or drill them out.
I believe they are riv-nuts (which is why one is spinning).

Punch the nut in/drill them out and tap the chassis fitting new stainless/galvanised bolts with lots of waterproof grease.

Click to expand...

Thank you. I used a Dremel then punched them through. I can't see a thread on the inside of the hole though. Any ideas or solutions as to how hest to fit the new nuts?

 

A

Anaconda

Well-Known Member

• Yesterday at 15:56

• #6

Foxoval said:

Thank you. I used a Dremel then punched them through. I can't see a thread on the inside of the hole though. Any ideas or solutions as to how hest to fit the new nuts?

Click to expand...

Yes, take the mounting plate off, deal with the rust and fit some rivnuts in the original holes. Then bolt the mounting plate back on and then the filter housing.

 

Wimblowdriver

Well-Known Member

Full Member

• Yesterday at 16:05

• #7

I did a similar job on mudflap brackets. The bolts screwed into steel rivnuts which were seated in square holes in the chassis. After punching the rivnuts through I drilled the square holes out and fitted new alloy rivnuts.

 

A

Anaconda

Well-Known Member

• Yesterday at 16:12

• #8

You can get rivnuts with a closed end so, in theory, there is less chance of the threads getting water in and rusting up. You would need to be more particular with the length of bolt you use though.

 

Wimblowdriver

Well-Known Member

Full Member

• Yesterday at 19:13

• #9

Anaconda said:

You can get rivnuts with a closed end so, in theory, there is less chance of the threads getting water in and rusting up. You would need to be more particular with the length of bolt you use though.

Click to expand...

I give the bolts a good slathering of copper grease.

 

miktdish

Guns n Chainsaws

• Yesterday at 19:13

• #10

Foxoval said:

Thank you. I used a Dremel then punched them through. I can't see a thread on the inside of the hole though. Any ideas or solutions as to how hest to fit the new nuts?

Click to expand...

With the plate off (as said) you need to clean it up, make sure the chassis is still sound and clean and slather with anti-rust and then prime.
Prior to the painting/finishing stage you should get some new riv-nuts.
If you've not used these before they are a really useful way of fitting non structural componets to things that you can't easily get to the back of (to fit std nuts).

You need some good drills, as the size of the hole is key and a reasonably good riv-nut tool.

ebay and/or Amazon are your friends here.
This is the one I reccommend, there are others and probably better ones available but this will do the trick.
Once you get into this you will fit them everywhere.

BLOSTM 14" 150 Rivet Nut Riveter Gun Heavy Duty Riveting Kit Nutsert Tool Rivnut | eBay UK

This heavy duty hand rivet nut gun is designed for maximum efficiency and durability, making it an essential addition to any toolkit. The ergonomic handles and extra-long arms provide superior leverage and comfort, reducing hand fatigue during extended use.

www.ebay.co.uk

Here is a site that sells riv-nuts.
Don't fit stainless ones into alluminium but do fit stainless ones into steel.
Steel/plated ones are OK but will rust over time.

Shop Premium Rivet Nuts Online - Durable & Versatile Fasteners

Explore our wide range of Rivet Nuts, including rivnuts, nutserts, and avdels. Perfect for various industries. Shop online today at Rivetwise!

www.rivetwise.co.uk

Once all the nuts are in, slather with paint/undercoat etc and refit.
I cover any surface that touches the chassis with a waterproof/marine grease.