505sti Posted October 18, 2016 Report Share Posted October 18, 2016 I bought a '87 505 STI 2.8L V6 Zn3j with ba10/5 transmission earlier this year and have been slowly cleaning it up. The next items to be changed out are the oil pan gasket and the spark plugs. I have done these on other cars and feel comfortable changing them. However, I'd like to know if there are any "special" steps that are required for these two processes with this engine? Also, what are the torque specifications for the oil pan bolts and the spark plugs? I checked the 505 and Zn3j manuals and have not been able to find this info. If you can help I'd really appreciate it. Quote Link to comment Share on other sites More sharing options...
Bean Posted October 19, 2016 Report Share Posted October 19, 2016 Welcome to the forums! Spark plug advice is to make sure clean the spark plug tubes out really well before removing the plugs. Sometimes the plug boots didn't seal well and there's a fair bit of dirt / sand ready to fall in once plug is removed. Compressed air is usually a must for doing it well. Pan should be straight forward, as for torque I never use a torque wrench on small bolts unless you have a very good in*lb torque wrench. I usually just use a 1/4" drive and snug it up good. If torque spec is a must, you can always just use recommended torque spec for the fastener. (Ie: google torque specs for metric bolts and then find the size) Rabin Quote Link to comment Share on other sites More sharing options...
Goce Posted October 19, 2016 Report Share Posted October 19, 2016 Welcome to the forum, Rabin explained well, i want to add couple of things, spark plugs are changed only on a cold engine because is easy to stripped the trades on the aluminium heads, there placement makes them maybe harder than 4 cylinder but definitely easily than other v6 and v8, as for the oil pan you have to remember to look for specs for aluminium, as the block is aluminum, just tight is good the v6 don't vibrate too much so no risk of them backing out, you should also inspect and clean the oil pickup when you pull down the pan, if you don't find a gasket don't be surprised on some steel pans only silicone is used. Quote Link to comment Share on other sites More sharing options...
SRDT Posted October 19, 2016 Report Share Posted October 19, 2016 You can also check Volvo B280F manuals, google said "6-8 ft. lbs. (8-11 Nm)" for the B280 oil pan. Quote Link to comment Share on other sites More sharing options...
505sti Posted October 22, 2016 Author Report Share Posted October 22, 2016 Thank you all for the fast replies and the warm welcomes! The parts are going to be shipped a bit later so I won't get to the oil pan and plugs until next week. Quote Link to comment Share on other sites More sharing options...
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