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RE: [VintageLambo] first lambo engine work

Robinson, Aaron

Heavens, you"re missing nuts from the cam caps?? And, the caps are on the wrong journals?? Who owned your car previously, Inspector Clouseau? You"re lucky the thing didn"t eat itself. Be interesting to hear what the rest of the group thinks. I say you have to mic/plastigauge everything before you put it back together because the caps may have worn themselves into a shape to match their new location. You may be better off leaving them where they are even though the tolerance may be a little fatter. As to the other questions, I took my manual home for the waterpump job and haven"t brought it back yet, so perhaps others can supply numbers. You need the Lambo UK engine rebuild manual and/or Jack"s rebuild manual; it has all (okay, most) of the answers to your questions As to nyloc nuts, might there be a compatibility issue with heat, oil, and oil additives? Don"t know. The lock washers should have helped hold everything in place if it was properly torqued. Don"t trust the cam hashmarks. If you need to put the cams on just to turn the motor without interference, then it"s okay. Otherwise, get the dial gauge and measure TDC. I can"t remember if the hash marks are TDC or 20BTDC but the manual says. I believe they are TDC because when you set initial valve openings, you do it at #1 TDC. The 20BTDC is for ignition timing. Take my advice, REBUILD THE WATER PUMP! It costs $60-something for the kit. You will highly regret not doing it later. If oil pressure was okay when you last drove it, leave the oil pump where it is. You"ll have to jack the engine to get it off over the cross member and it will be a serious PITA. Oil pumps rarely fail. I would definitely *check* cylinder head torques but I wouldn"t replace unless there"s a compelling reason to remove it. The studs can only stand so many re-torques and if you"ve got good compression (sounds like you do) then you"re probably okay. Especially if you"re planning to pull the heads at some future date. When I bought my car, it came with a home-made timing chain tensioner tool (I wonder where it is now?). The Lambo UK manual has a good drawing. Basically it"s a piece of flat steel stock with a cutout to fit around the tensioner wheel and two Allen-head bolts screwed through it for the "fingers". If you have decent metal-working tools you can make it in a half hour. Re: oil return holes. I like pooled oil. Pooled oil is good. There"s 15 quarts in the sump and plenty to spare. I don"t like drilling into 40-year-old alloy castings with machine tool bits. True, those castings have probably relaxed over the years from the heat cycling, but you never know when some invisible sub-dermal fault line will grow into a crack when it"s prodded with a spinning bit. Then you"re in it big. Better to seal the cam covers properly (I used Loctite 518 and stat-o-seal washers on the cam covers and she"s been oil free--at least from that seam--for several years). No idea about the Bosch plugs. I use the NGK BPs and love "em. Bill is a fairly-priced, one-stop shopping point for old Lambo owners. My feeling is that he deserves to get the "easier" pick-and-pack business (points, caps, seals) to help make up for all of our inane requests ("Say Bill, can you go digging into the pile and see if there"s one of those spring-purchase washers, the smaller one, not the bigger one, out of the brake master cylinder. Mine"s looking a little tired.") AR -----Original Message----- From: Alex Penrith [mailto:ampeng@earthlink.net] Sent: Thursday, April 10, 2003 2:05 AM To: VintageLambo@yahoogroups.com Subject: [VintageLambo] first lambo engine work Well I thought I would share my new experience as this is the first time I have worked on this motor. I also have many questions that I would appreciate some help with. Removed valve covers- good news cams and "bearing" wear is very very little. Bad news is DPO left off some of the nuts on caps(long studs only so