1969Mk3Spitfire Posted June 3, 2021 Report Share Posted June 3, 2021 My Mk3 Spitfire has developed a rapid onset rattle. Thanks to the dreadful state of our roads, it sounds like an exhaust clamp or bumper over rider is lose and it rattles as I drive over potholes. I’ve had each corner in the air and been underneath the car but can’t pinpoint the source using my palm to hit every conceivable component. My only suspect is the offside bonnet catch. A bang on the near side catch is dull but the offside one definitely rattles. Adjustment looks like three screws on the catch and two bolts on the body attachment feature. Do catches have a reputation for rattling? Any guidance or advice to adjust? Any other likely suspects that I may have missed? Many thanks. Link to comment Share on other sites More sharing options...
DanMi Posted June 3, 2021 Report Share Posted June 3, 2021 the main adjustments is the rubber conical buffer attached to the bonnet these often fall apart leaving just a metal circle. The rubbers can be adjusted via the threaded stud that holds them in place. Yes they can rattle. Link to comment Share on other sites More sharing options...
Colin Lindsay Posted June 3, 2021 Report Share Posted June 3, 2021 You adjust the height of the bonnet as Dan says by raising or lowering the rubber bonnet cones at each top corner. If it's at the correct height and still rattles then you can lower the bracket on the side of the bulkhead that the bonnet catch hooks into, very slightly, by loosening the two bolts / screws and adjusting up or down. Link to comment Share on other sites More sharing options...
dougbgt6 Posted June 3, 2021 Report Share Posted June 3, 2021 I bought some off a Triumph supplier, “suitable” for my car turned out they had metric threads. My car has captive nuts, yours may not in which case no problem. But if you need imperial threads the club shop stock them. Doug Link to comment Share on other sites More sharing options...
1969Mk3Spitfire Posted June 3, 2021 Author Report Share Posted June 3, 2021 Thanks for the replies. I’ve had a quick look and I don’t think that the rubber cones are the issue. The car is now in the garage so I’ll drive it again tomorrow. It’s a strange rattle with sudden onset. Not heard it before but it sounds like something is about to fall off. To eliminate the bonnet latch, I could drive it with it unlocked to see if the rattle persists. Link to comment Share on other sites More sharing options...
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