rulloyd Posted March 8, 2022 Report Share Posted March 8, 2022 Hi all. Once more back to the TSSC oracle…. Following restoration of my GT6, I have yet to properly fettle my engine which is still in run in phase. The engine was properly reconditioned and I refurbed the carbs & fuel pump myself. I did set the carb floats height according to the W/shop manual. I noticed that the carb to manifold gaskets were looking a little oily on top (pic 1) which led me to look closer and underneath the gasket area is very oily (oily gunge). Seems to be worse towards the front. Pics 2 & 3. Wondering what this could be? Possibly related. When I first started the engine after rebuild, quite a lot of fuel washed out of the air intake side of the carb. I also had a weird problem once after I parked up for 5 mins after a short run and the engine wouldn’t start (there’s a thread on this). Now I wonder if it flooded. I haven’t taken the air filters off to take a look yet. As ever, all advice appreciated. Rich Link to comment Share on other sites More sharing options...
Pete Lewis Posted March 8, 2022 Report Share Posted March 8, 2022 i would go along with its been flooding at some time pete Link to comment Share on other sites More sharing options...
rulloyd Posted March 8, 2022 Author Report Share Posted March 8, 2022 28 minutes ago, Pete Lewis said: i would go along with its been flooding at some time pete Thanks Pete. What would you expect would cause flooding? At one stage there was quite a lot of fuel dripping filter side but I thought it had cleared. Seems pretty severe considering the joint should be leak proof. Why would it seem oily? many thanks Rich Link to comment Share on other sites More sharing options...
rulloyd Posted March 8, 2022 Author Report Share Posted March 8, 2022 By the way, it’s the same on both carbs. Link to comment Share on other sites More sharing options...
PeteH Posted March 8, 2022 Report Share Posted March 8, 2022 Is the rocker cover seal ok.?. A bit of blowby would leave a deposit which would bake when hot. Pete Link to comment Share on other sites More sharing options...
Pete Lewis Posted March 8, 2022 Report Share Posted March 8, 2022 and manifold gaskets can surprisingly be a tad pourous Pete Link to comment Share on other sites More sharing options...
rulloyd Posted March 8, 2022 Author Report Share Posted March 8, 2022 Rocker cover no leaks 👍 Link to comment Share on other sites More sharing options...
rulloyd Posted March 8, 2022 Author Report Share Posted March 8, 2022 Interesting that in this pic you can see that the residue is front half of the carb only along the Venturi (is this the right word??!!) Link to comment Share on other sites More sharing options...
rulloyd Posted March 8, 2022 Author Report Share Posted March 8, 2022 And a couple more pics. The gunk seems to be around the height of the spindle both sides. There’s no evidence of leaks anywhere except on the carbs. Link to comment Share on other sites More sharing options...
rulloyd Posted March 8, 2022 Author Report Share Posted March 8, 2022 I wonder if it could be coming from the spindle? Seems a bit looser than I recall when I rebuilt them and there is definitely liquid around the holes that the spindle protrudes from. Looks oily and smells oily but it must be petrol surely unless from the dashpots? Confused 🤔 Link to comment Share on other sites More sharing options...
NonMember Posted March 8, 2022 Report Share Posted March 8, 2022 Yes, it's probably the spindles leaking petrol when on choke (or during acceleration). There could also be some crankcase breather residue mixed in to what leaks from there. 1 Link to comment Share on other sites More sharing options...
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