Rad cap grease trick

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fuerte
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Rad cap grease trick

Post by fuerte » Tue Oct 02, 2018 4:33 pm

I am posting on something I know someone has mentioned numerous times but I forget who and exactly what they said.
Someone said they put grease round rad cap
1.what type of grease
2.exactly where and how.
I am heavy handed,ham fisted and eyesight rubbish close up so before I give it a try I need to male sure I dont end up with grease in my coolant.
I think it was on old site so cannot find the post.
Sorry to ask you to repeat yourself again.
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cpt black
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Re: Rad cap grease trick

Post by cpt black » Tue Oct 02, 2018 6:54 pm

Silicon grease on the rubber seal
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fuerte
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Re: Rad cap grease trick

Post by fuerte » Tue Oct 02, 2018 7:07 pm

cpt black wrote: ↑
Tue Oct 02, 2018 6:54 pm
 Silicon grease on the rubber seal
Thanks I have wd40 silicon grease in a can I used to use to prevent a porch door sticking but I found it left a residue so I swapped to gt85.
Have I got the right product and how do you apply.
When I used the wd40 version it left a rubbery residue when it dried out.I dont think I need worry about it getting in coolant as sets solid.
Worth a try but I will wait to hear from you or not 7 days before risking it.
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cpt black
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Re: Rad cap grease trick

Post by cpt black » Thu Oct 04, 2018 8:27 am

I use silicon grease, there own make got mine from RS ONLINE ;)
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fuerte
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Re: Rad cap grease trick

Post by fuerte » Thu Oct 04, 2018 8:41 am

cpt black wrote: ↑
Thu Oct 04, 2018 8:27 am
 I use silicon grease, there own make got mine from RS ONLINE ;)
Thanks
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jrh
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Re: Rad cap grease trick

Post by jrh » Thu Oct 04, 2018 9:29 am

Yes, silicone grease , can also be found in plumber merchant shops in little screw top tubs.
Tell them it is for lubricating O-Rings and they will show you what they have in stock.
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fuerte
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Re: Rad cap grease trick

Post by fuerte » Thu Oct 04, 2018 9:38 am

Thanks both of you.
It was ok until the garage fitted the thermostat and put rad caps on wrong way round.oh well will get there in the end.
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