ajh Posted December 14, 2010 Share Posted December 14, 2010 Does anyone know where and what thread the water jacket drain plug is on a 200TDI? I have a tank/circulation heater to install and looks like that'll be the best place to pull from and then Y into the heater matrix return hose for the return. I know where they are on the RV8 but haven't found them on the 200 yet (though I just brought it inside and hopefully all the ice melts off and things dry by morning and I'll be able to take a closer look. Quote Link to comment Share on other sites More sharing options...
doda456 Posted December 14, 2010 Share Posted December 14, 2010 I believe its a 12 or 13 mm bolt and is located somewhere on the block under the exhaust manifold. Im sure someone will check but ive never actually looked for it so i cant say for definate. Dan Quote Link to comment Share on other sites More sharing options...
western Posted December 14, 2010 Share Posted December 14, 2010 coolant drain plug on block item 6 on page 233 don't know what the thread or head size is, as I've never tried to take mine out. Quote Link to comment Share on other sites More sharing options...
ajh Posted December 14, 2010 Author Share Posted December 14, 2010 Can you think of another location near the bottom of the block where coolant could be drawn from? Preferably on the oil-filter side vs the cluttered side? Seems to be on 223 which does mean it's on the more difficult to access side, I'll have to pull and see if I can make things fit there. Probably can, just a whole lot easier on the other side. Thanks. Quote Link to comment Share on other sites More sharing options...
western Posted December 14, 2010 Share Posted December 14, 2010 on the opposite side you have the camshaft/cam followers/push-rods, so doubt you could successfully tap into the water jacket without creating more problems. Quote Link to comment Share on other sites More sharing options...
ajh Posted December 14, 2010 Author Share Posted December 14, 2010 Yeah, looks like my best option is to put a Y fitting in where the lower rad hose heads to the expansion tank. Then I'm thinking if I put another Y into the return line (the one that goes into the head) from the heater core that will provide a bottom to top unrestricted loop for the convection current to circulate. Does that sound right? Quote Link to comment Share on other sites More sharing options...
western Posted December 14, 2010 Share Posted December 14, 2010 pipe alongside the rocker cover is the heater return, the vertical stub pipe is the heater feed IIRC. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.