Repair or replace
Thread Starter
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Grand HDF Member
Joined: Oct 2014
Posts: 4,209
Likes: 6,714
From: Gruene Texas
Is it possible Cometic sent me something wrong, or
On the 3 sets of 4 o rings, I put the large one on the bottom, medium in the middle and small up top. Did I muck something up.
On the 3 sets of 4 o rings, I put the large one on the bottom, medium in the middle and small up top. Did I muck something up.
HDF Community Team
Joined: Dec 2005
Posts: 5,441
Likes: 2,637
From: NC USA
Fat one goes on top, skinny (and larger ID) on the bottom, medium in the middle. And some use a metal washer/spacer under the bottom o-ring, in the tappet guide bore.
Dirt don't hurt
Joined: Jan 2011
Posts: 21,066
Likes: 4,568
From: Haslet Texas
If you're still coming by tomorrow I can show you and if you need I've got extra o-rings.
Thread Starter
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Grand HDF Member
Joined: Oct 2014
Posts: 4,209
Likes: 6,714
From: Gruene Texas
I do have adjustable push rods. Any special secrets to keep them from going south on me when I re tighten.
I'll pull apart the the leaky one first, lay it out and shoot a pic.
Never did get a pic of that sissy bar you have. Supposed to be close to 80 today, good day for a ride in the Hill Country.
Seasoned HDF Member
Joined: Mar 2010
Posts: 21,168
Likes: 7,676
From: Poolville
With the Cometic gasket sets the tan o-ring is up top..
Probably the cheapest way out at this point it's adjustable pushrods. Time is money and if you ever want to make a cam or lifter change..... Easy peasy...
Probably the cheapest way out at this point it's adjustable pushrods. Time is money and if you ever want to make a cam or lifter change..... Easy peasy...
Last edited by 98hotrodfatboy; Mar 1, 2020 at 06:32 AM.
Road Master
Joined: Aug 2007
Posts: 942
Likes: 323
From: Grew up in Texas, moved to AZ
I don't know if there's any secret for keeping PRs tight, and you shouldn't have any worries if you tighten them well. One technique that I've found helpful is to put two adjustable wrenches together like you are holding a plier in your hand, and squeeze them together as you lock the nut down. Make sure you have good wrenches as the nut can be easily rounded if you go hard at it. If you are careful, you will have no problems.
Thread Starter
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Grand HDF Member
Joined: Oct 2014
Posts: 4,209
Likes: 6,714
From: Gruene Texas
You guys are. Correct, some ******** put the top/middle o ring in the middle/top spot. Fixed all four.
Took the two wheeled vibrator for a ride, couldn't find anymore leaks, cleaned the mess up and I'm good
For now
Took the two wheeled vibrator for a ride, couldn't find anymore leaks, cleaned the mess up and I'm good
For now
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Seasoned HDF Member
Joined: Mar 2010
Posts: 21,168
Likes: 7,676
From: Poolville
I don't know if there's any secret for keeping PRs tight, and you shouldn't have any worries if you tighten them well. One technique that I've found helpful is to put two adjustable wrenches together like you are holding a plier in your hand, and squeeze them together as you lock the nut down. Make sure you have good wrenches as the nut can be easily rounded if you go hard at it. If you are careful, you will have no problems.
Road Master
Joined: Aug 2007
Posts: 942
Likes: 323
From: Grew up in Texas, moved to AZ
That's a good method. Marking a flat on the PR helps, and or moving over one flat, then tightening it down would get you back to the correct position too. I don't quite pre-load my lifters as much as you do. When I ran the Wood 6 cam, the recommended pre-load was at .142. The current slow-leakdown lifters I have and running a EV-13 cam, I'm good at .066-.073 recommended pre-load.