jono1986 Posted November 11, 2009 Report Share Posted November 11, 2009 hey guys, me and my dad have just finished rebuilding my 3k motor and was cranking it. It started a little bit but the timing was way off so we fixed that, and when we wanted to get the motor a bit warmer my dad revved it a little bit and all i felt was coolant all over my legs as the welsh plug from the head popped out. Now what could be wrong?? i got the head rebuilt from just heads do you think they would of put a new one in their or the old one just gave way, a bit out of my knowledge base so please help to what could of happened?? like i said it's a 3k from a ke35 1978 Quote Link to comment Share on other sites More sharing options...
Medicine_Man Posted November 11, 2009 Report Share Posted November 11, 2009 leaking head gasket? Cranking pressurises the water jacket and pops the welsh plug out.. Quote Link to comment Share on other sites More sharing options...
jono1986 Posted November 11, 2009 Author Report Share Posted November 11, 2009 leaking head gasket? Cranking pressurises the water jacket and pops the welsh plug out.. Even with a brand new gasket?? Quote Link to comment Share on other sites More sharing options...
philbey Posted November 11, 2009 Report Share Posted November 11, 2009 You sure you didn't damage anything when you put the gasket on? Either Med Mans suggestion, or perhaps make sure you had the welsh plug in correctly - perhaps it wasn't in far enough, or crooked? Quote Link to comment Share on other sites More sharing options...
Felix Posted November 11, 2009 Report Share Posted November 11, 2009 (edited) I've had a welschplug pop out on an old 3k bigport head before. Crap setup, overated heads. If you are going to run one, ensure the welschplug is epoxied and staked in place. Edited November 11, 2009 by Felix Quote Link to comment Share on other sites More sharing options...
jono1986 Posted November 11, 2009 Author Report Share Posted November 11, 2009 (edited) Alright well, my dads going to take the head off tomorrow and we're going to put it a new welsh plug and make sure its in properly, i'll give just heads a call aswell just to see if they put a new one in. Another thing is when i picked the plug up it was like a concave shape with no edges like a cup shape it was just pretty flat, if you need a photo i'll get one Edited November 11, 2009 by jono1986 Quote Link to comment Share on other sites More sharing options...
Felix Posted November 11, 2009 Report Share Posted November 11, 2009 Another thing is when i picked the plug up it was like a concave shape with no edges like a cup shape it was just pretty flat, if you need a photo i'll get one That's the way they were designed. Ticking time bomb. Be thankful it happened at home while stationery. Out on the road it could easily cost you a motor. Quote Link to comment Share on other sites More sharing options...
Evan G Posted November 11, 2009 Report Share Posted November 11, 2009 wow wtf never seen anything like that before, so its not a C shape? its just like a dish? Quote Link to comment Share on other sites More sharing options...
kiahn Posted November 11, 2009 Report Share Posted November 11, 2009 goto Malz auto shop or somewhere like that and take that welsh plug with you, malz sells them and they sell the better C shape ones if you can fit it in Quote Link to comment Share on other sites More sharing options...
orangeLJ Posted November 11, 2009 Report Share Posted November 11, 2009 yeah Id be fitting a cup chaped welsch plug, those are a terrible design, no wonder they pop out! Quote Link to comment Share on other sites More sharing options...
jono1986 Posted November 12, 2009 Author Report Share Posted November 12, 2009 hey guys, thanks for the replies went to sprint auto they didn't have them then repco then motor mate, toyota said they don't exist and it's a k head or something, then motor traders and they said they know of a guy Graham Matthews, gave him a call and got a brass dish one fits perfectly. oh and can't fit a C shape one in there not enough room Quote Link to comment Share on other sites More sharing options...
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