WebNov 16, 2012 · It has a Vetus anti-siphon valve on the raw water inlet side, after the water pump. There is no anti-siphon valve between the heat exchanger and the injection point on the exhaust. Although there is a short exhaust riser fitted, the vertical distance between the injection point and the water level in the water lock is close to the minimum ... WebJul 17, 2007 · The heat risers job was to create enough pressure to force the hot exhaust gases back up the intake manifold, under the carb and back out the other side. this hot gases under the carb causes plate warpage and cooked gas. Under the carb are the 2 holes in the manifold that the gases would enter and exit. An oldie but goodie thread
exhaust manifold heat riser - Slant Six Forum
WebThe heat risers on the 1963 and 1964 Cadillacs often stick after 50 + years, but you can test to make sure they are working properly. This video will provide... WebThe heat riser valve is located between the exhaust manifold and the head pipe and is used to hasten the warm-up of a cold engine. Malfunctioning or frozen valves can cause … harvard cyclotron
Exhaust Risers - Marine Engines : Boats and Yachts …
WebThe exhaust riser has two functions: (1) to keep water from backing up into the engine through the exhaust piping and, (2) it serves as the device that introduces cooling water into the exhaust exit piping system. If the riser … WebDec 6, 2024 · Find many great new & used options and get the best deals for Exhaust Manifold Heat Riser Valve, 2" Original. at the best online prices at eBay! WebMar 31, 2005 · Uh, wrong. If the valve is removed, the intake will become quite cool to the touch. The valve is designed to force the exhaust gas to the underside of the intake. When it is opened, the exhaust will freely flow out the manifold. At that point the only heat that is transfer from the exhaust manifold to the intake is by transfer thru the metal ... harvard dartmouth forestry carbon study