Ziggy Posted June 20, 2020 Report Share Posted June 20, 2020 Whats the best radio suppressor to get for my 1972 mk4 spitfire as the radio has a lot of interference when running, I guess the old one doesnt work anymore! Just restored the car, have 8mm leads on the plugs, but still get interference. Link to comment Share on other sites More sharing options...
poppyman Posted June 20, 2020 Report Share Posted June 20, 2020 Have you checked the aerial earth Ziggy? To test put radio on then hold the aerial with your hand. if it goes louder you have earth problems. Tony. Link to comment Share on other sites More sharing options...
RogerH Posted June 20, 2020 Report Share Posted June 20, 2020 3 hours ago, Ziggy said: Whats the best radio suppressor to get for my 1972 mk4 spitfire as the radio has a lot of interference when running, I guess the old one doesnt work anymore! Just restored the car, have 8mm leads on the plugs, but still get interference. Hi Ziggy, are your spark plugs and or plug caps suppressed. Suppressed plugs often have a 'R' in the part number. You need to stop the interference at source rather then at the radio it self. If the plugs are good then look at the +12V line from the dynamo/alternator. An In car audio shop will give you good advice Roger Link to comment Share on other sites More sharing options...
Pete Lewis Posted June 21, 2020 Report Share Posted June 21, 2020 i cant recommend spark plugs with an R in on our weedy HT , fine on mega jolt and moderns but i have only found misfires when i come across these plugs in problem cars and if the radio is VHF its not normally affected by car related interference like MW/LW was is this a HT spark morse code tickety tick or a whine whirry noise ???? that determines if its the HT or charging if you have an alternator that should not cause interference but a dynamo can and its control box Pete Link to comment Share on other sites More sharing options...
poppyman Posted June 21, 2020 Report Share Posted June 21, 2020 37 minutes ago, Pete Lewis said: and if the radio is VHF its not normally affected by car related interference like MW/LW was Pete That's why i was thinking more of an earth problem Pete. The interference is sometimes better than mw/lw stations. Tony. Link to comment Share on other sites More sharing options...
Pete Lewis Posted June 21, 2020 Report Share Posted June 21, 2020 you mean you cant get Luxembourg on MW 208 any more ??? i miss Horrace Batchelors K E Y N S H A M Pete Link to comment Share on other sites More sharing options...
Chris A Posted June 21, 2020 Report Share Posted June 21, 2020 5 minutes ago, Pete Lewis said: you mean you cant get Luxembourg on MW 208 any more ??? i miss Horrace Batchelors K E Y N S H A M Pete That's spelt . . .. A pair of dinosaurs aren't we? 1 Link to comment Share on other sites More sharing options...
Pete Lewis Posted June 21, 2020 Report Share Posted June 21, 2020 if only i could remember what i did last week !!!!!!!!!!!! Pete Link to comment Share on other sites More sharing options...
Chris A Posted June 21, 2020 Report Share Posted June 21, 2020 2 minutes ago, Pete Lewis said: if only i could remember what i did last week !!!!!!!!!!!! Pete How long ago was that? Link to comment Share on other sites More sharing options...
Pete Lewis Posted June 21, 2020 Report Share Posted June 21, 2020 Thursday Link to comment Share on other sites More sharing options...
poppyman Posted June 21, 2020 Report Share Posted June 21, 2020 I thought it was August? Link to comment Share on other sites More sharing options...
Pete Lewis Posted June 21, 2020 Report Share Posted June 21, 2020 no thats aghast when was that anyway were off Pete Link to comment Share on other sites More sharing options...
Colin Lindsay Posted June 21, 2020 Report Share Posted June 21, 2020 Roll on 2020, that's all I can say. Link to comment Share on other sites More sharing options...
Chris A Posted June 21, 2020 Report Share Posted June 21, 2020 It's been years since my eyesight was 2020. Maybe we'll need hindsight for 2020 . . . Link to comment Share on other sites More sharing options...
Pete Lewis Posted June 21, 2020 Report Share Posted June 21, 2020 well were halfway through 20 nights now closing in anyone done a dance around stone henge hoping for a Pagan summer apart from know one knows what the place was for anyway who ever made it was cleverer than those trying to sus it out pete Link to comment Share on other sites More sharing options...
Colin Lindsay Posted June 21, 2020 Report Share Posted June 21, 2020 54 minutes ago, Pete Lewis said: well were halfway through 20 nights now closing in anyone done a dance around stone henge hoping for a Pagan summer apart from know one knows what the place was for anyway who ever made it was cleverer than those trying to sus it out pete It was multi-storey car parking, the lintels at the top were to prevent caravans and campers from staying overnight. As regards radio suppression, shouldn't we ask North Korea for the best method? Link to comment Share on other sites More sharing options...
Badwolf Posted June 21, 2020 Report Share Posted June 21, 2020 4 hours ago, Chris A said: It's been years since my eyesight was 2020 Maybe you need a trip to Barnard Castle... but I can't remember why! Link to comment Share on other sites More sharing options...
Chris A Posted June 21, 2020 Report Share Posted June 21, 2020 17 minutes ago, Badwolf said: Maybe you need a trip to Barnard Castle... but I can't remember why! That would mean I had to go into quarantine, merde as we say here. I've got other plans for this week. Fingers crossed if it pans out l'll put details on the forum, I don't want to jinx them 🤞 Link to comment Share on other sites More sharing options...
poppyman Posted June 21, 2020 Report Share Posted June 21, 2020 47 minutes ago, Badwolf said: Maybe you need a trip to Barnard Castle... but I can't remember why! I can see where your coming from.... tony. Link to comment Share on other sites More sharing options...
Pimp my Vit Posted June 22, 2020 Report Share Posted June 22, 2020 Back on topic you need to identify how it gets into the radio, power lead or aerial, pull out aerial and if interference is still there then a filter in the power supply close to the radio will help. If its gone then you have to fix it at source. Earthing is biggest problem so fit wide earthing braids for back of radio, the coil and aerial base or the wing its mounted to, also make sure engine has good earth to chassis, and try a suppressor on coil and spark plugs. I might have some suppressors in the garage from my time in car audio business I will take a look and get back to you... Link to comment Share on other sites More sharing options...
poppyman Posted June 22, 2020 Report Share Posted June 22, 2020 You are right PMV, https://www.ebay.co.uk/itm/Vintage-Car-Radio-Interference-Suppressors-Coil-Plugs-FULL-KIT/164185183812?hash=item263a331644:g:CnwAAOSwBOResBJt I have had a hunt around and found a full kit on fleabay. but earths are the usual problem. Tony. Link to comment Share on other sites More sharing options...
Pimp my Vit Posted June 24, 2020 Report Share Posted June 24, 2020 Thats a cracking kit on eBay and just what you need Ziggy... Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now