buick special Posted July 29, 2017 Share Posted July 29, 2017 Can anyone let me know the proper type of oil and weight for a 1940 buick special transmission oil and wt differential oil and wt steering box oil and wt motor oil and wt brake fluid type also spark plug mfg and model# tire size in modern radial size All the best AJ Link to comment Share on other sites More sharing options...
Ben Bruce aka First Born Posted July 29, 2017 Share Posted July 29, 2017 transmission = 90/180 Rearend -= same Steering box== same Engine = 30w or 10 w-30 Brake fluid = DOT 3 Spark plug = AC 46 Tires depend on what size wheels you have. A 225/70R 15 would be about right. Pictures? Ben Link to comment Share on other sites More sharing options...
buick special Posted July 29, 2017 Author Share Posted July 29, 2017 thank you for your reply and information would you happen to know the gap for the spark plugs? PS what mfg and model number points should I buy and what gap for the points? Link to comment Share on other sites More sharing options...
Spinneyhill Posted July 30, 2017 Share Posted July 30, 2017 Spark plug gap 0.023-0.028", breaker gap 0.0125-0.0175". Cam angle 31° (is that dwell?). Just look at your points and find some that look the same. Link to comment Share on other sites More sharing options...
Daves1940Buick56S Posted July 30, 2017 Share Posted July 30, 2017 On your trans fluid, make sure you use either GL-4 or GL-1. Do not use GL-5, it will wear out the synchros. Also do not use GL-1 in the rear, it should be GL-4 or 5 (4 preferable). On your steering box, if you use 90 wt or 140 wt you may have leakage down the pitman arm. If you do, use Penrite 1200w semi-fluid grease, you can get it at Restoration Supply http://www.restorationstuff.com/index.html Cheers, Dave Link to comment Share on other sites More sharing options...
MCHinson Posted July 30, 2017 Share Posted July 30, 2017 My personal recommendation for the transmission and differential would be Master Pro GL4 SAE 140 gear oil available in a gallon jug from O'Reilly Auto Parts. https://www.oreillyauto.com/detail/masterpro-chemicals-4341/chemicals---fluids-16461/grease---lube-16582/gear-oil---additives-16905/gear-oil---140w-20063/gear-oil/80040/4495693/2002/buick/lesabre?q=gear+oil Link to comment Share on other sites More sharing options...
buick special Posted July 30, 2017 Author Share Posted July 30, 2017 thank you all for your replies (lots of good info that will help me do a dynamic test soon) Link to comment Share on other sites More sharing options...
buick special Posted July 31, 2017 Author Share Posted July 31, 2017 I forgot to ask what oil filter should I get? Is it available at a regular store? Link to comment Share on other sites More sharing options...
MCHinson Posted July 31, 2017 Share Posted July 31, 2017 I have no experience with oil filters since 1937 did not use an oil filter but I am sure that Bob's Automobilia would have the proper oil filter for your Buick. http://bobsautomobilia.com/ Link to comment Share on other sites More sharing options...
buick special Posted July 31, 2017 Author Share Posted July 31, 2017 thank you for the reply Perhaps the 40 did not use one?? if a 1940 special used an oil filter can anyone tell me the model number Link to comment Share on other sites More sharing options...
MCHinson Posted July 31, 2017 Share Posted July 31, 2017 It looks like the 1940 Buick used this oil filter element: http://bobsautomobilia.com/oiling-system/oil-filter-element-1939-47-all-.-of-p112/ Link to comment Share on other sites More sharing options...
Ben Bruce aka First Born Posted July 31, 2017 Share Posted July 31, 2017 8 minutes ago, buick special said: thank you for the reply Perhaps the 40 did not use one?? if a 1940 special used an oil filter can anyone tell me the model number Filters were optional in those years. In fact, that carried through the Straight years, I believe. Ben Link to comment Share on other sites More sharing options...
jvelde Posted July 31, 2017 Share Posted July 31, 2017 Perhaps we could see a photo of your engine - maybe there is no oil filter canister on this car. Link to comment Share on other sites More sharing options...
buick special Posted July 31, 2017 Author Share Posted July 31, 2017 I will ask a friend to stop by and take a picture for me where would a filter be located on the motor ? as I will take a look in that area to see if one is present Link to comment Share on other sites More sharing options...
buick special Posted July 31, 2017 Author Share Posted July 31, 2017 I just look a look and came here to post info there are only 2 things that are canister shaped is on the passenger side of the motor one is near the front of the motor at the bottom which I assume is a mechanical fuel pump the other is on top of it and has a bolt on top to remove the top lid no idea what that is Link to comment Share on other sites More sharing options...
jvelde Posted July 31, 2017 Share Posted July 31, 2017 The top item is the oil filter canister if it looks similar to the one in this photo. Link to comment Share on other sites More sharing options...
buick special Posted July 31, 2017 Author Share Posted July 31, 2017 that's it , so mine does have an oil filter as it looks just like the one in the picture Link to comment Share on other sites More sharing options...
buick special Posted July 31, 2017 Author Share Posted July 31, 2017 On 7/29/2017 at 1:13 PM, Ben Bruce aka First Born said: transmission = 90/180 Rearend -= same Steering box== same Engine = 30w or 10 w-30 Brake fluid = DOT 3 Spark plug = AC 46 Tires depend on what size wheels you have. A 225/70R 15 would be about right. Pictures? Ben I just checked my tire size they are 6.5 x 16 what modern radial tires would work ? Link to comment Share on other sites More sharing options...
Ben Bruce aka First Born Posted July 31, 2017 Share Posted July 31, 2017 Closest is 175/75R16. Good luck finding them. Ben Link to comment Share on other sites More sharing options...
1939_Buick Posted July 31, 2017 Share Posted July 31, 2017 8 hours ago, jvelde said: Perhaps we could see a photo of your engine - maybe there is no oil filter canister on this car. And the engine serial number near the distributor. Is possible your engine has been replaced by a latter engine some time in the last 80 years. Download the 1942 Buick shop manual. All of it section by section. The pdf link does not work. It is very comprehensive and has information that can be used with all straight 8’s. It has more information than was included in older “Shop Manuals” before 1942-41 http://www.oldcarmanualproject.com/manuals/Buick/1942/Shop%20Manual/ Link to comment Share on other sites More sharing options...
buick special Posted August 1, 2017 Author Share Posted August 1, 2017 Thank you for the additional info , it defiantly has an oil filter as it is exact to the posted picture I saw a filter element on the web model # 51001 which I think cross references to an AC P112 Link to comment Share on other sites More sharing options...
buick special Posted August 1, 2017 Author Share Posted August 1, 2017 Thank you for the link to the manual its going to be a help , still waiting for the guy to find the one he has for me and drop it off guy I got car from was 2nd owner and says its orig motor motor number matches reg ,and looks right so have no reason to doubt him Link to comment Share on other sites More sharing options...
buick special Posted August 1, 2017 Author Share Posted August 1, 2017 Closest is 175/75R16. Good luck finding them. Ben Ben thanks for the tire size conversion , if I cant find that size what is the closest size to it that I can find that would not interfere I the wheel wells? Link to comment Share on other sites More sharing options...
buick special Posted August 3, 2017 Author Share Posted August 3, 2017 Hi guys; I saw a WIX 51001 oil filter element that cross references to an AC P-112 has anyone used the wix and is it a decent filter? Link to comment Share on other sites More sharing options...
Grimy Posted August 3, 2017 Share Posted August 3, 2017 19 minutes ago, buick special said: I saw a WIX 51001 oil filter element that cross references to an AC P-112 has anyone used the wix and is it a decent filter? WIX filters are excellent! The NAPA GOLD filters are Wix by an almost identical part number. So the NAPA GOLD crossover number or the Wix--whichever you can get more reasonably. And pick up a suction gun to remove the dirty oil at the bottom of the filter housing/can. Then wipe out the canister with **lint-free** cloths or towels. Link to comment Share on other sites More sharing options...
61polara Posted August 4, 2017 Share Posted August 4, 2017 I would order 6.5 x 16 bias ply tires from Coker Tire. It will drive much better. Many will disagree. The steering will be much lighter. 1 Link to comment Share on other sites More sharing options...
Kenneth Carr Posted August 5, 2017 Share Posted August 5, 2017 (edited) On 7/31/2017 at 6:08 AM, buick special said: I forgot to ask what oil filter should I get? Is it available at a regular store? I have a 1941 Buick and the filter can appears to be the same as yours. I get my filters at NAPA . The number is the NAPA Gold 1001. Their catalog part number is FIL 1001. They are presently going for $13.05 if ordered online for store delivery. Check the dimensions to be sure. They come with gaskets too. I usually order 2 or 3 at a time and stock up. Click on the blue link to see the item at NAPA. Edited August 5, 2017 by Roadmaster71 (see edit history) Link to comment Share on other sites More sharing options...
buick special Posted September 12, 2017 Author Share Posted September 12, 2017 On 7/29/2017 at 1:13 PM, Ben Bruce aka First Born said: transmission = 90/180 GL-4 Rearend -= same Steering box== same Engine = 30w or 10 w-30 Brake fluid = DOT 3 Hi Guys I went to a few local parts places for gear oil and found 85/140 or 80/90 would either of these work in transmission and steering box and rear end with out leaking or damaging Link to comment Share on other sites More sharing options...
Daves1940Buick56S Posted September 12, 2017 Share Posted September 12, 2017 (edited) You have to look for the GL rating, it will be on the container somewhere. GL4 is what you want since GL5 will damage some metals over time, specifically the syncros. Most if not all gear oils sold in stores like Advance Auto and Pep Boys is GL5, which is fine for modern cars. NAPA will have GL4 (StaLube) or you can get it online. Also, if you find GL1 that will work fine in the transmission but do not use it in the rear, only use GL4 there. Cheers, Dave Edited September 12, 2017 by Daves1940Buick56S (see edit history) Link to comment Share on other sites More sharing options...
FLYER15015 Posted September 12, 2017 Share Posted September 12, 2017 (edited) 1940 Buick big engine oil filter cross reference chart is shown below. Show this to your friendly Buick dealer's parts guy. Edited September 12, 2017 by FLYER15015 (see edit history) Link to comment Share on other sites More sharing options...
buick special Posted September 15, 2017 Author Share Posted September 15, 2017 On 7/30/2017 at 3:30 PM, MCHinson said: My personal recommendation for the transmission and differential would be Master Pro GL4 SAE 140 gear oil available in a gallon jug from O'Reilly Auto Parts. https://www.oreillyauto.com/detail/masterpro-chemicals-4341/chemicals---fluids-16461/grease---lube-16582/gear-oil---additives-16905/gear-oil---140w-20063/gear-oil/80040/4495693/2002/buick/lesabre?q=gear+oil Thank you for the link to the Masterpro GL4 140 gear oil , That looks like good oil to use in my 40 special I checked and sadly there are no O'Reilly Auto Parts in NY and they do not ship Do you happen to know any sellers of this in NY? Link to comment Share on other sites More sharing options...
buick special Posted September 15, 2017 Author Share Posted September 15, 2017 I checked all over and can no get the OReilly Masterpro 140 GL4 gear oil would this Star Lube gl4 sae 140 oil be safe to use? https://www.amazon.com/CRC-SL24238-GL-4-Multi-Purpose-Gallon/dp/B000M8IHI2 Link to comment Share on other sites More sharing options...
MCHinson Posted September 15, 2017 Share Posted September 15, 2017 It looks like that should work fine. It is labeled GL4 and Hypoid which is what you want. Link to comment Share on other sites More sharing options...
buick special Posted September 16, 2017 Author Share Posted September 16, 2017 here is a link to the company website product http://www.crcindustries.com/products/api-gl-4-multi-purpose-gear-oil-sae-140-1-gal-SL24238.html Description GL-4 Hypoid Gear Oil has low pour points and high temp properties to provide lubrication over a wide temperature range. This versatile lubricant contains anti-rust and anti-wear EP additives to provide the corrosion protection in drives and hypoid gears. I didn't like where it says " This versatile lubricant contains anti-rust and anti-wear EP additives to provide the corrosion protection in drives and hypoid gears" one guy posted a review on another website he posted "Perfect for older cars that require GL-4 but don't like GL-5 gear oil. Smells like sulphur. You know, as it should" the above poster may be wrong about the sulpher since no other reviewers mention it Has anyone on the website used this in their cars?? if so please post your experiences with it as I do not want to buy the wrong thing Link to comment Share on other sites More sharing options...
Daves1940Buick56S Posted September 18, 2017 Share Posted September 18, 2017 I use Sta-Lube and it is good. Cheers, Dave Link to comment Share on other sites More sharing options...
buick special Posted September 18, 2017 Author Share Posted September 18, 2017 32 minutes ago, Daves1940Buick56S said: I use Sta-Lube and it is good. Cheers, Dave Hi Dave Thank you for the reply and letting me know that it is ok for our older cars , I called up the mfg and spoke to the tech dept and they said all the additives would not harm any yellow metals and this is good our applications All the best AJ Link to comment Share on other sites More sharing options...
Bloo Posted September 18, 2017 Share Posted September 18, 2017 Please let us know how the Sta-Lube works out, especially how it shifts. Link to comment Share on other sites More sharing options...
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