so i learned the hard way about link bars
03-20-2019, 09:11 PM
#1
so i learned the hard way about link bars was feeling good about how things were going, got the link bars in, heads torqued, ready for pushrod measuring, except before then i flipped the engine over to test fit the crank scraper. flip the motor back around, and now my link bars were messed up. 2 sets on each bank had come out of the hole from being flipped upside down, and there was no way to get it back in without removing the heads.
so i untorqued them, i loosened the top row, then did a half turn starting from bolt 10 to bolt 1, then loosened bolt 10 to 1 (reverse install procedure) basically the rest of way......what are the chances that my new heads may now be warped having been torqued to 90 pounds on the head studs? im 99% certain the cometic MLS gasket is still good correct?
so i untorqued them, i loosened the top row, then did a half turn starting from bolt 10 to bolt 1, then loosened bolt 10 to 1 (reverse install procedure) basically the rest of way......what are the chances that my new heads may now be warped having been torqued to 90 pounds on the head studs? im 99% certain the cometic MLS gasket is still good correct?
03-20-2019, 10:40 PM
#4
TECH Senior Member
You GOTTA be kidding.....
03-21-2019, 01:32 AM
#5
Heads don't warp from taking them on and off. They warp from heat or from being torqued down on a non flat deck surface. Since it hasn't been ran I would reuse the headgaskets without a second thought. But yes you did learn the hard way about flipping a motor over without something holding the lifters in.
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03-21-2019, 07:00 AM
#10
10 Second Club
Try a a few pen magnets and see if you can get them back in the hole. Diet coke used them to hold them up while he swapped cams.
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larsieboy (04-02-2020)
03-21-2019, 02:05 PM
#12
wouldn't have worked. 1 or to came out of the hole enough to get crooked, since the link connects them u would have had to pull up on the other in a finesse move, problem is you couldn't get the magnet on the top to pull it up, the magnet would have been on the side.....if that makes sense. I think 2 of them the lifter completely came out. If u never had link bars or installed them it would be tough to visualize, but even with the heads off it takes a little wiggling to get them to slide in
03-21-2019, 02:14 PM
#13
10 Second Club
wouldn't have worked. 1 or to came out of the hole enough to get crooked, since the link connects them u would have had to pull up on the other in a finesse move, problem is you couldn't get the magnet on the top to pull it up, the magnet would have been on the side.....if that makes sense. I think 2 of them the lifter completely came out. If u never had link bars or installed them it would be tough to visualize, but even with the heads off it takes a little wiggling to get them to slide in
always could use a piece of tie wire and a wooden dowel kinda like playing operation(tie wire through each push rod hole snag the tie bar, move into position and then the dowel to seat the lifter). Just trying to give you some ideas to keep from wasting a set of head gaskets.
03-21-2019, 02:50 PM
#14
No I appreciate it. If i was running bolts it wouldn't have been a huge issue, pull bolts wipe off, Chase, lube bolt reinstall. But these studs, I had to clean the threads off, clean washers, clean nuts, lube stud, relube nuts, finesse all the washers back on, reijnstall nuts. I figured just suck it up and pull the heads vs fighting it with no guarantees except just wasting timr
03-21-2019, 03:12 PM
#16
I used to work @ the plant that made/makes all the GM lifters (as well as others). The very final manufacturing step prior to finished lifters going into their shipping packaging was a degauss, where any magnetism picked up thru manufacture was eliminated.
03-21-2019, 04:38 PM
#18
It's inadvisable to put magnets on anything running/moving part inside an engine - doing so will magnetize that part, and help it collect steel bits/debris.
I used to work @ the plant that made/makes all the GM lifters (as well as others). The very final manufacturing step prior to finished lifters going into their shipping packaging was a degauss, where any magnetism picked up thru manufacture was eliminated.
I used to work @ the plant that made/makes all the GM lifters (as well as others). The very final manufacturing step prior to finished lifters going into their shipping packaging was a degauss, where any magnetism picked up thru manufacture was eliminated.
03-21-2019, 04:43 PM
#19
Even a little magnet could magnetize a lifter enough to attract little bits of steel from the oil - and I can hardly think of a worse place to have steel/iron debris hang out than a lifter (in particular at the roller/cam interface).