Question about 2008 Beta RR 250 M
What should I be aware of when replacing the head gaskets on the front and rear cylinders on a 1988 RR 250 M? ie. tightening bolts
Replacing o-rings order of reassembly things to look for compression test, etc.,I'm hoping you have a proper repair manual for the bike - 'cause that's a hefty undertaking you're into. Other than that, I can't help you as I have no experience with these bikes.,,,
Posted on Nov 10, 2008
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Posted on Jan 02, 2017
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DeVille, Eldorado, Seville 1999-2005
Removal & Installation
Fig. Left cylinder head bolt torque sequence-4.6L engine
Fig. Right cylinder head bolt torque sequence- 4.6L engine
Apr 16, 2013 | 2000 Cadillac DeVille DTS
DO NOT use any sealing material.
Caution!Refer to Fastener Notice in Cautions and Notices.
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Tighten the bolts to 30 N•m (22 lb ft) plus an additional 155 degrees using the J 45059 .
Click to Enlarge
Tighten the bolts to 35 N•m (26 lb ft).
Feb 19, 2013 | 2008 Chevrolet HHR 2.2
Jan 30, 2011 | Chevrolet C2500 Cars & Trucks
Cylinder head bolt tightening sequence - 1993-97
Remove the head from the engine. If prying is necessary, use a protected blade; take great care not to damage the mating surfaces of the head and block.
Clean the head and block of all gasket material. Take great care not to gouge or scratch the mating surfaces.
Place a new gasket on the cylinder block. Make sure it is positioned correctly. Install the cylinder head in position.
Lightly coat the head bolt threads and plate washers with engine oil. Install the bolts in the head.
Uniformly tighten the head bolts in several passes in sequence, to 25 ft. lbs. (34 Nm).
Mark the front of each bolt with a dot of paint. Following the correct order, tighten each bolt an additional 90 degrees. When complete, all the paint marks should face to the side of the engine.
Again following the correct order, tighten the bolts another 90 degrees of rotation. When complete, the paint marks should face the rear of the engine, exactly 180 degrees away from the original starting point. Correct bolt torque is expressed as 25 ft. lbs. (34 Nm) + 90° + 90°.
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