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#6573 10/12/2003 12:26 PM | Joined: Aug 2000 Posts: 800 Shop Shark | | Shop Shark Joined: Aug 2000 Posts: 800 | I have a new heat riser spring for my 228. It's installed according to the service manual. It's got a 1/3 of a turn on it, as per the manual. There's only one problem. It seems to me that it's holding the flapper in the "hot" position while it's cold. Meaning that the weight is flopped toward the driver's side. I thought that was the warmed up position. And that the "vertical" position was the "closed" or "cold position". The spring is from Bowtie bits and it looks identical to the one shown in the shop manual. Just tell me I'm wrong and that everything's right. What?  Please send pictures. | | | | | Joined: Nov 2001 Posts: 481 Shop Shark | | Shop Shark Joined: Nov 2001 Posts: 481 | Hello K10
I recently replaced the exhaust on my 228 GMC and I did determine that the exhaust manifold flapper that directs heat to the intake manifold was CLOSED when the flapper weight was toward the PASSENGER side.
If I understand your post correctly, your install is correct. | | |
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