dougbgt6 Posted April 24, 2017 Report Share Posted April 24, 2017 I thought my glasses needed cleaning but, no. The tell tale curl of smoke from the heater intake grill was a clue, the cabin was filling up with exhaust. Lifted the bonnet and WOW! The manifold to down pipe gasket had obviously failed. Off with the carbs, inlet and outlet manifolds. The gasket had mostly disintegrated, my own fault for not replacing it when the head gasket blew. Rocking the manifold back and forth when putting the head back had not done the gasket any good. Almost everything back together, got to get it running and into the garage today, before the snow comes (Really?!! Well, that's what they say.) Scary thing was I just thought my glasses needed cleaning, I didn't smell exhaust gasses at all. Go check your manifolds! Link to comment Share on other sites More sharing options...
Pete Lewis Posted April 24, 2017 Report Share Posted April 24, 2017 get some rose tinted !!!! pete Link to comment Share on other sites More sharing options...
JohnD Posted April 24, 2017 Report Share Posted April 24, 2017 I've pointed out before that the multiple holes in the bulkhead, poorly sealed due to old perished rubber gaskets and the gerabox cover to floor seals, are the cause of hot driving. At this time of year, did you have your heater on, Doug? This isn't just unpleasant fom the heat that gets in, it's DANGEROUS from the Carbon monoxide in exhaust gas. Please check your bulkhead and cover seals. John Link to comment Share on other sites More sharing options...
dougbgt6 Posted April 24, 2017 Author Report Share Posted April 24, 2017 It's a GT6, I never have the heater on! However, air vents open and heater set to cold, that's how it happened. 1 Link to comment Share on other sites More sharing options...
Pete Lewis Posted April 24, 2017 Report Share Posted April 24, 2017 are you sure it wasnt recycled ikea meatballs mist ?? Pete Link to comment Share on other sites More sharing options...
dougbgt6 Posted April 24, 2017 Author Report Share Posted April 24, 2017 No, I'm reliably informed Ikea meat balls have a particular, overpowering smell, this mist had none. I always think the GT6 bulkhead to bonnet rubber seal a poor design. It works fine on a Spitfire but the GT6 has a power bulge so there is a gap which the seal doesn't touch and engine smell and heat vent over the fresh air intake I have experimented with a section of door seal on the lip of the bonnet which cuts the irritants down and also stops the bonnet flexing and vibrating. Link to comment Share on other sites More sharing options...
Pete Lewis Posted April 24, 2017 Report Share Posted April 24, 2017 Could you also make a thick sponge doughnut to suround and seal the heater intake to the bonnet?? 1 Link to comment Share on other sites More sharing options...
AidanT Posted April 24, 2017 Report Share Posted April 24, 2017 Ha. Phone decided to write on this thread not the one I was looking at Weird! Aidan Link to comment Share on other sites More sharing options...
Pete Lewis Posted April 25, 2017 Report Share Posted April 25, 2017 Its Dougs fault Ha!!! Link to comment Share on other sites More sharing options...
dougbgt6 Posted April 25, 2017 Author Report Share Posted April 25, 2017 Thick sponge donut.........mmmmmmm! Link to comment Share on other sites More sharing options...
Pete Lewis Posted April 25, 2017 Report Share Posted April 25, 2017 would you like jam or apple ?? doug nuts only 28 last night at the pub had a new visitor up from Stanmore !! and the suns out ......how annoying Pete Link to comment Share on other sites More sharing options...
dave.vitesse Posted April 25, 2017 Report Share Posted April 25, 2017 Would that be Purple Haze in the cabin or have I mist the point Dave Link to comment Share on other sites More sharing options...
dougbgt6 Posted April 25, 2017 Author Report Share Posted April 25, 2017 Pete, leave my nuts out of it. Only 6 at Thames the other night, usually 15 to 20. First month ever East Berks had more! Well, alright, we had 6 as well, but not the same 6, except for me. And a groan for you Dave. Link to comment Share on other sites More sharing options...
Pete Lewis Posted April 25, 2017 Report Share Posted April 25, 2017 its still a bit early for some to escape the cosy home ,, more sunshine should work them out in the cars once we get steam up i will run down to see you again for a natter , not sure when , promises promises Pete Link to comment Share on other sites More sharing options...
dougbgt6 Posted April 25, 2017 Author Report Share Posted April 25, 2017 That'd be great, look forward to it. Actually I was thinking of coming up to Herts & Beds at some point, once I fully trust the GT again. At the moment Waitrose is as far as I go in it! Link to comment Share on other sites More sharing options...
Pete Lewis Posted April 25, 2017 Report Share Posted April 25, 2017 Huff and puff we have to use Aldi Link to comment Share on other sites More sharing options...
daverclasper Posted April 30, 2017 Report Share Posted April 30, 2017 Hi I'm assuming there wasn't a noise coming from exhaust manifold to indicate the leak?. Any other tests to see if leaking please. My gearbox cover doesn't seal too well, so slightly concerned. Thanks, Dave Link to comment Share on other sites More sharing options...
dougbgt6 Posted May 1, 2017 Author Report Share Posted May 1, 2017 Dave, no, that was odd no noise indication. Although I have long suspected the baffles in my stainless box are shot due to the odd exhaust noises. I wonder if my gas sensor next to the kitchen boiler would work in the car? Might try that. Although testing it on the exhaust tail pipe might knacker it, then where would I be? I'm thinking of buying a plastic gearbox cover from the club shop, engineer a flap for gear oil top ups and seal the whole thing to the body with silicon bathroom sealant. Others on here have done this. Link to comment Share on other sites More sharing options...
Paul H Posted May 1, 2017 Report Share Posted May 1, 2017 Dave, no, that was odd no noise indication. Although I have long suspected the baffles in my stainless box are shot due to the odd exhaust noises. I wonder if my gas sensor next to the kitchen boiler would work in the car? Might try that. Although testing it on the exhaust tail pipe might knacker it, then where would I be? I'm thinking of buying a plastic gearbox cover from the club shop, engineer a flap for gear oil top ups and seal the whole thing to the body with silicon bathroom sealant. Others on here have done this. Hi Just refitted my Fiberglass gear box cover , made a door for gear oil level inspection . The rubber draught excluder sold by the club has a peel off paper to expose the adhesive which is worse than useless - I glued the draught excluder to the base of the housing using Gorilla Glue This glue is activated by water and is brilliant stuff. With the water activation the glue area expanded significantly and when set there is no way the excluder will come off - I found the best way was to clamp the excluder to the fibre glass base . To complete I added aluminium backed sound proofing to the underside - The pics were taken prior to adding the draught excluder Hope this helps Paul 1 Link to comment Share on other sites More sharing options...
dave.vitesse Posted May 1, 2017 Report Share Posted May 1, 2017 Doug, There are a number of ways. What about covering the hole with a piece of shaped soft metal held in place with screws and use thick plastic sheet as a gasket. Plates can be fixed, with screws, to the gearbox side to hold self tapping screw clips to take the screws from the hole cover. Dave Link to comment Share on other sites More sharing options...
Dick Twitchen Posted May 1, 2017 Report Share Posted May 1, 2017 Doug, Adding shaped plates and using J clips on the gearbox cover plus screws has worked for me. Hopefully the photo makes in clear. Dick Link to comment Share on other sites More sharing options...
dougbgt6 Posted May 1, 2017 Author Report Share Posted May 1, 2017 Guys, some really good ideas, excellent! Dick, what's the cover plate on the front for, I can't think what? Link to comment Share on other sites More sharing options...
dave.vitesse Posted May 1, 2017 Report Share Posted May 1, 2017 I did an article on the subject in the Courier July 2008 if that is of any help. Dave Link to comment Share on other sites More sharing options...
Pete Lewis Posted May 1, 2017 Report Share Posted May 1, 2017 one for oil level .........one for speedo would work ??? Link to comment Share on other sites More sharing options...
dougbgt6 Posted May 1, 2017 Author Report Share Posted May 1, 2017 Ah! Don't need it, my speedo ain't there! Link to comment Share on other sites More sharing options...
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