I did all of that before I joined this forum and since, I think, I have read that the timing cover can be replaced without disturbing the sump - others can advise on this. Tools are required for this and you'll also need a method of holding the fan to remove it from the pump. Edelbrock 4242 Aluminum Timing Cover, 2-Piece, Small Block Chevy (1) 157.95 /each. Mr Gasket LSTC2 GM LS Timing Cover Alignment Tool. The harmonic balancer also has to be removed and re-fitted. COMP Cams 210 2-Piece Aluminum Timing Cover, Small Block Chevy, Kit. If there all sorts of stuff bolted to the water pump bosses that means you probably cant tell the cover is chrome anyway. If you can actually see the cover that means the water pump should be 4 bolt job. These differences net different expansion and contraction rates, which can cause a shearing effect and lead to failure. The timing chain cover I'm using: RPCS6040BOXC Chrome Aluminum SB Chevy V8 Timing Chain Cover When I notices these issues I already had begin to install the pan and added Permatex Silicone to the gaskets so I completed the installation. The problem in is the aftermarket chrome timing cover. If the gasket tears a new one is required along with complete removal of the sump/oil pan. Your problem isnt an oil leak, the leak is the symptom. Think about the sump/oil pan gasket as recommended fitting procedure is to lower it at the front and reseal with silicon sealant to the timing cover. The question is, which is better Timing belt or. Remember that whatever cover you use, it must have provision for the CPS and be spacious enough to clear it's trigger wheel. They both operate in the same way and the only difference is their shape and the materials they are made of. That (and water pump gaskets bought separately) was bought in the UK from US Automotive - and was £80+. As seen below, the older block used dowel pins (male pins in block, holes in tin. ![]() The plastic covers bolts are shouldered to prevent over-tightening the cover. The only other thing supplied with it was a bolt for the CPS and (IIRC) a small amount of silicon sealant (see below). The plastic cover has male pins or dowels to locate the cover onto the face of the block the steel cover has holes in the same position for the dowels that are used in the older blocks. Professional Products lists the years for this type damper line as being 1984-1995 and is a 6-3/4 diameter damper. This damper uses a timing cover that has the tab welded on at about the 12 o'clock position. I replaced mine on my 1999 5.7 Vortec earlier this year and the new one had the seal already in it and the gasket was a bead of silicon already applied. It is at the 12 o’clock position- or 40 before the keyway.
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