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itsnotme1988 · 01-21-2014, 09:30 PM

I recently had a cylinder head rebuilt for a 1993 Saturn SL1. I just got it reassembled and tried to start the car only to have all four exhaust rockers snap off. What could have caused this? Cam timing was set correctly and system was primed before attempting to start (turn over until built pressure with no plugs installed.) Had a *pop* once I tried to start the car with plugs installed, pulled the rocker cover and found all four arms broken.

01-21-2014, 09:30 PM	#1 (permalink)
itsnotme1988 EcoModding Lurker Join Date: Aug 2008 Location: NC Posts: 18 Saturn SL1 - '93 Saturn SL1 Last 3: 38.37 mpg (US) Suzuki - '86 Suzuki Intruder VS750 90 day: 44.63 mpg (US) Elantra GT - '05 Hyundai Elantra GT 90 day: 29.13 mpg (US) Silverado HD - '11 Chevrolet 3500 HD 90 day: 11.87 mpg (US) 2008 Trailvoy - '08 Chevrolet Trailblazer LS 90 day: 14.96 mpg (US) Ambie - '06 Ford Taurus SEL 90 day: 23.85 mpg (US) Xj750j - '82 Yamaha Maxim XJ750 90 day: 32.47 mpg (US) Thanks: 0 Thanked 0 Times in 0 Posts	Rebuilt LKO head, snapped exhaust rockers I recently had a cylinder head rebuilt for a 1993 Saturn SL1. I just got it reassembled and tried to start the car only to have all four exhaust rockers snap off. What could have caused this? Cam timing was set correctly and system was primed before attempting to start (turn over until built pressure with no plugs installed.) Had a pop once I tried to start the car with plugs installed, pulled the rocker cover and found all four arms broken. __________________