foxy Posted April 10 Share Posted April 10 Hi all I’ve got a Hobao pirate project the problem I have is when running it’s spitting its fuel and gasses out off the exhaust manifold gasket at the back of the engine I’ve ordered new gaskets and they are very loose fitting in the manifold I have tried different ones I’m abit lost on what to try next should it be a tight fit or could it be the exhaust spring needs to be replaced hope it makes sense Quote Link to comment Share on other sites More sharing options...
locky Posted April 10 Share Posted April 10 I've always found the HPI gaskets to be thicker, https://wheelspinmodels.co.uk/i/109078/ Quote Link to comment Share on other sites More sharing options...
foxy Posted April 10 Author Share Posted April 10 1 hour ago, locky said: I've always found the HPI gaskets to be thicker, https://wheelspinmodels.co.uk/i/109078/ Thanks mate I’ve tried a few tbh are the gaskets meant to be snug in the manifold? Quote Link to comment Share on other sites More sharing options...
locky Posted April 11 Share Posted April 11 You should feel the manifold touching the gasket as you push it in, so an interference fit. Otherwise your just relying on the faceplate seal. Sometimes you can cut one gasket down and double up, one on top the other, on the engine, but depends on thickness. A spring that looks stretched or is very easy to put could also be part of the problem. Unfortunately exhaust manifolds and engines vary in their sizes. 1 Quote Link to comment Share on other sites More sharing options...
foxy Posted April 13 Author Share Posted April 13 Cheers locky the spring has definitely seen better days so i will get another Quote Link to comment Share on other sites More sharing options...
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