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Lube for main bearing bolts 4.2L

Posted: Thu Mar 12, 2020 4:50 pm
by rustneversleeps
Greetings all - I am getting ready to fit new mains bearings to my '93 RRC LWB 4.2L . Any service or overhaul manual I can find states that the main bearing cap bolts are to be coated with the mystery lubricant "Marston EXP16A" - which seems to be NLA.

Any advice as to a substitute for EXP16A ? ARP Ultra torque assembly lube? Or just plain old 30W oil?

Re: Lube for main bearing bolts 4.2L

Posted: Thu Mar 12, 2020 6:20 pm
by rgallant
The RAVE for the Disco 4.6 says engine oil I would imagine teh ARP would work fine

Re: Lube for main bearing bolts 4.2L

Posted: Fri Mar 13, 2020 7:43 am
by rustneversleeps
Sounds good - thanks for your advice.