Allen bolt behind timing cover question

cruiser88 · 07-05-09, 12:14 PM

What is that allen bolt for right above the tensioner? Any paticular reason why its there? Sure dont look stock?

cruiser88 · 07-05-09, 12:15 PM

toy4xfun · 07-05-09, 01:46 PM

not sure might be a clean out. go to my album in about 5 min something for you to see.

cruiser88 · 07-05-09, 01:48 PM

Clean out? Surly Toyota would not thread a spot in front of the block just to block it off?

Thanks Mike

Quote:

Originally Posted by toy4xfun

not sure might be a clean out. go to my album in about 5 min something for you to see.

toy4xfun · 07-05-09, 01:57 PM

all right go to my albums. had a great 4th

cruiser88 · 07-05-09, 02:06 PM

Thank you mike

KLF · 07-05-09, 04:54 PM

Quote:

Originally Posted by cruiser88

Clean out? Surly Toyota would not thread a spot in front of the block just to block it off?

This is a common manufacturing method. I believe that plugs off a hole that lets them line-bore an oil passage thru the block. Then the tap the hole and put a plug in it.

Similar to the "Welsh Plug" in the top of the heads of the 22R series.

Be glad it's a threaded plug that won't back out. Read up on the stupid soft aluminum plug they put in the heads of the 2F/3F engines, that conveniently pop out at about 100,000 miles. By the time you realize it, all the oil is pumped out of the engine and it's junk. Good times...

cruiser88 · 07-05-09, 05:27 PM

Ya Mike called and told me what it was for......yea I have replaced a few of the oil gallery plugs with allens.

Quote:

Originally Posted by KLF

This is a common manufacturing method. I believe that plugs off a hole that lets them line-bore an oil passage thru the block. Then the tap the hole and put a plug in it.

Similar to the "Welsh Plug" in the top of the heads of the 22R series.

Be glad it's a threaded plug that won't back out. Read up on the stupid soft aluminum plug they put in the heads of the 2F/3F engines, that conveniently pop out at about 100,000 miles. By the time you realize it, all the oil is pumped out of the engine and it's junk. Good times...