2002#3

M10 Rebuild Part 27 (Oil Pump and Rear Main Seal) I installed a 320i oil pump, 2002 oil pickup arm, oil pipe, and rear main housing and seal. My machinist fabricated a 0.040" shim (the small T-shaped part in the 1st photo) to fit at the bottom of the spring and compress it a little. The top "hat" of the T is the shim and the stem fits into the spring. His experience building M10s has told him it increases oil pressure a tad and makes the engine a little happier. With two 0.1-mm shims and a 4-mm oil pump chain the total chain thumb pressure play was 7 mm (spec, <10 mm). I tried the commonly available and often mislabeled 5-mm chain and found it to have too much fore-aft play in the sprocket for my taste. The rear main seal was installed about 2 mm from bottoming out so the contact point of the new seal did not touch the part of the crankshaft flange worn by the previous seal. Thus, the new seal touches virgin crankshaft flesh. I do not have a jig to drill holes in nuts for safety wire, so I cleaned the pump shaft threads ad nauseam and used Loctite. I have a jig for bolt heads, so I will safety wire the four cam sprocket bolts and the oil spray bar bolt. Today, I ordered a 215-mm lightweight flywheel from JB Racing. Many FAQ comments and recommendations convinced me (i) a 228-mm flywheel is not necessary for this build and (ii) the 215-mm flywheel would easily handle the increased horsepower of this build.

Joe, Torquing? Felt good? Ohhhhh, yeah. Good torquin' fills my loins with moist desire!

M10 Rebuild Part 26 Installed crankshaft and pistons.

What's with the black refrigerator shelf over the header in this car? Ultra Box Hiroshima // Hirotaka Fujiwara's BMW 2002 tii. | StanceNation™ // Form > Function WWW.STANCENATION.COM "What are your strengths? What can you bring to the table?" The interview is simultaneously stressful and a great relief. You spend considerable time and energy constructing a well-crafted résumé (printed on quality paper with attention-grabbing fonts!) to get through those doors...

The M10 block I am assembling came with thin plain washers on the main caps. I have read on FAQ three versions of such washers: (i) BMW did not use washers. (ii) BMW used plain thin wave washers. (iii) Use the thick heavy washers like those used on the head. Opinions, please. Thanks

This safety discussion (like all safety discussions) is one of the better and more important discussions in a long time. Thanks for all the serious and life-saving suggestions.

BAT poses an interesting question today: What is the right amount of horsepower? WARNING: Some of the answers might be disturbing and inappropriate for FAQers. Question of the Week: What’s the Right Amount of Horsepower?—WINNER’S UPDATE | Bring a Trailer BRINGATRAILER.COM Learn more about Question of the Week: What’s the Right Amount of Horsepower?—WINNER’S UPDATE on Bring a Trailer, the home of the best vintage and classic cars online.

M10 Rebuild Part 25 Assembled pistons and installed rings, rods, and mains. It took forever to learn how to install the wrist pin retainer C clips efficiently: first one, one hour; 8th one, 30 seconds. Got it down now.

Drilled some bolts to accept safety wire. Surprisingly easy. I used the 1/16" bit that came with the jig and assumed the bit would be a POS and would not last. Not the case at all. The bit went through four bolt heads easily and could have handled more. The jig held the bolts tightly in place quite well.

Be sure to give the car a good hard shake in several directions. If you use a transmission jack, do a trial run for correct car height: Put the new transmission onto the jack, lower it ALAP, and make sure all rolls/fits under the car.

M10 Rebuild Part 25 Plugged some holes and broke a nipple. Note to Self: Hollow bolts are not as strong as solid bolts.

Yep, I knew the holes on both ends of the head. Forgot to mention them. Thanks.

Thanks, YoungRoller. As I thought. I disassembled the engine well over a year ago and had forgotten the function of the one on the L side. Good to go now. "What hump?"

2 at the oil filter mount, 2 at the fuel pump rod hole (the rod hole does not count), 1 at the water inlet/outlet to the L of the fuel pump rod hole, and 2 more (one on each side of the block). More?

Yes. Thanks, Mark. Maybe open boss is not the correct name. Probably tapped hole which goes through the wall of the block or head. Example: the 4 open tapped holes above the blue exhaust ports in the photo above; 3 have studs and 1 does not.

If any of you have easy access to a block and/or head (E12 if it matters) will you be so kind as to count the number of open bosses in each? I find the following and want to make sure I have not missed one: block: 3 on intake side; 1 on exhaust side head: 6 on intake side; 4 on exhaust side Thank you.

Solex 40PHH sidedrafts are old school and certainly cool. I have enjoyed mine quite a bit thinking the engine looks sortalike/kindalike/similar to a 2002ti. Mine perform reasonably well after rebuilding, tuning, jetting, fiddling, etc. I still have not got them quite right. I'd say 8 out of 10. Idling and the usual street driving: a little erratic; needs a little fiddling here and there. Romping: sweet, strong, throaty, loud, and very, very nice. Yes, I have checked for loose/worn shafts (none) and air leaks (none). AFR is acceptable idle > mild/mid > full open. I cannot get them to idle as perfectly Ed's. The days for the engine and aforementioned Solexes in the photo below are numbered. All will be removed and replaced with my M10 project rebuild and its accompanying Webers (32/36, 38/38, and Italian 40 DCOEs in a yet-to-be-determined order).

Thanks., Joe. Carbs I plan (for educational and fun purposes) to use, in order, a manual choke Weber 32/28 I rebuilt, then a (probably new) manual choke Weber 38/38, and then Italian Weber DCOE 40s I have rebuilt. Yes, sequentially - maybe over 6 mo, 1 yr, 2 yr, who knows. I want to experience all three - installation, tuning, and all the aggravation, headache, and heartache that comes with each. My machinist really wants me to use a 32/36 cause it a foolproof, hearty, and satisfying. I stopped arguing with and listening to him on that issue. Distributor a '72-'73 tii distributor (-008) rebuilt by Advanced Distributors

M10 Rebuild Part 24 Assembled the head. All new components, including 292 cam, SS valves, and HD springs.

Nuts, Bolts, Fasteners, and Plumbing Handbook Carroll Smith, Carroll Smith Consulting Inc., 1990 Numerous FAQers have mentioned professional racer and engineer Carroll Smith and his 1990 handbook on fasteners with emphasis on automotive fasteners. My machinist refers to the info in the book frequently. I could not resist the temptation to purchase the book and see what gives. It is an unbelievable presentation of fasters, e.g., metal structure, fatigue, failure, torque, binding/clamping forces, nomenclature, washers, selection of appropriate nuts and bolts for appropriate situations, thread theory and practice, fluid connections, crap and non-crap fasteners, myths, truths. Most of the info is extremely engineer-oriented and quite detailed; however, his presentation constantly keeps jackleg builders and mechanics in mind. Below are photos of example pages.

Frisch, You are no longer a 2002 virgin. You are now a 2002 owner.

Thanks, Ken and uai. Will do.

Yep, Roller, when I'm there I'm sh%##ing in some pretty high cotton. For some reason they like me (go figure) and let me hang there. I DO NOT ever take it for granted. I go back a long way with one of the machinists/engine builders there and am fortunate to have him teach me. Their expertise is older vehicles and fabrication of NLA and rare stuff. Photos: 1/3 of the garage and a few of the many machines which overshadow (read, intimidate) me when I am there. Zakira's Garage – We do what other shops can't! ZAKIRAS.COM

M10 Rebuild Part 23 Today, last step before assembly: block sent to the exterior beauty parlor for a wash, rinse, set, dry, and a light coat of WD40 (cylinders and deck; it helps set the curls). Everything bought, shipped, machined, decked, bored, cleaned, scrubbed, sonicated, adjusted, bagged, and introduced to each other. Next week: assembly. Not shown: lightweight FW and a potload of gaskets; pistons and rods in the RW&B box A few new cars showed up in the garage since my last visit. The AMX is particularly sweet.

Uai, The spray bar bolt?