Top Oil Pump Bolt Stripped

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Top Oil Pump Bolt Stripped #597892 04/29/05 03:36 AM

Joined: Apr 2004

Posts: 2,010

Virginia Beach, VA

87Toy4x4

Body Damage is Cool

i used a torque wrench to torque the top oil pump bolt down to 18 ft. lbs. and it stripped out i tried tapping it and then using a longer bolt but no luck its too stripped out. could i drill it out a little larger and then use a heli-coil? or would metal shavings get behind the timing cover? any other ideas?

87 22R PU, 2? body lift, 33? BFG muds, 4.88's, F&R Lock-Rights, Rancho Shocks, EB's Street RV Head w/ 268 Cam, LCE Header, 2" to 2 1/4" exhaust, Flowmaster 50 series, Magnaflow high flow cat, complete Herculined SR5 interior, V6 BB, MC, and calipers.

Re: Top Oil Pump Bolt Stripped [Re: 87Toy4x4] #597893 04/29/05 12:36 PM

Anonymous

Unregistered

that bolt screws into the aluminum timing cover, only. there's nothing behind it except the timing chain and a straigt drop to the oil pan, so dont' worry about the shavings too too much. I forget what the published torque is on that bolt, but I think someone screwed up the metric conversion on it when it was put in English units. Iv'e see na few rigs run without that bolt and have no problems.

Re: Top Oil Pump Bolt Stripped #597894 04/29/05 02:49 PM

Joined: Jan 2005

Posts: 38

CLNC, NC/Franklin, Ma

alltracman78 Offline

Getting the Wheeling Fever

You could always tap it out for a larger bolt.
ie if the bolts 10 x 1.25 tap out to 11 x 1.25, ect.
Or you could use a insert. They are more solid and reliable than a helicoil.
Or you could run with out it and hope it doesn't leak.

Jeremy
90/91 Celica GTS
91/92/93 Celica Alltrac
85 Toyota pu

Re: Top Oil Pump Bolt Stripped [Re: 87Toy4x4] #597895 04/29/05 03:41 PM

Anonymous

Unregistered

Quote

Did the bolt have any oil or threadlock on it? If so wet torque values are lower due to the reduction in friction between the bolt and hole threads (especially steel bolts into aluminium housings). I would drill it out and retap larger or helicoil/threaded insert, either way you are making the hole larger. Leave all of the oil in the pan and then drain it after you drill it out, so any chips get carried out with the oil.

Re: Top Oil Pump Bolt Stripped [Re: 87Toy4x4] #597896 04/29/05 03:54 PM

Joined: Jun 2003

Posts: 3,576

1800 acre island at the Oregon...

engnbldr

Roll Me Over

>>>*We set up a shop vac, that will draw out most of the chips as you repair the threads. Tap and install a helicoil, be sure to coat the helicoil in good RTV.

Then install the bolt, also seal the threads to avoid leaks.

DO NOT use a longer bolt.....*EB

*Beats the he** outa me!....*LOL**...

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