As said, the 2 lower ones are 15mm serrated, my van has those, maybe its a CB thing?
I've never had any come loose over the years but the one car I fixed that did, the dowel pins weren't there.
As said, the 2 lower ones are 15mm serrated, my van has those, maybe its a CB thing?
I've never had any come loose over the years but the one car I fixed that did, the dowel pins weren't there.
1989 FWD Turbo Caravan-2.5 TIII, GT35R, auto, a/c, cruise, pwr windows/locks, fully loaded with interior and ran with full exhaust. RETIRED FOR A FEW YEARS!12.57@104 :O)
1984 Chev Getaway van, 6.2 Diesel with a remote mounted turbo setup burning WMO-For sale.
2003 GSW 2.0L TDI, auto, fully loaded, modified, 360K-wife's.
2004 GSW TDI, 5 speed, fully loaded, modified.
Aurora ignition wires for sale. Link to info
Super60 roller cams or custom/billet cams. Link to info
My 86 GLHS has the 15mm bolts on the bottom 2 too, so it's not a CB thing.
And Cordes, I did the same thing on my front bolt with the nut on the back side.
Mine has the dowels. I'll try cleaning the holes again.
Ian Adams Function>Form 1990 shadow scrapped, too rusty:( 1991 Spirit R/T Scrapped, parts sold:( 1989 Turbo Caravan Daily beater with built-[I]ish [/I]engine slowly evolving into weekend turbo beater.
Hey I know this might be late but... I'm pretty sure your loose bolt problem are due to clutch chatter. Hopefully you guys know what that means! I'll attack a photo with proof and link.
https://goo.gl/photos/KyA9didaoTXVGTY46
The case I have heard of where the engine to tranny bolts where coming loose, the bell-housing was cracked. Under normal driving the crack would open up a little and allow the bolt to start backing out... I doubt even loc-tite would fix that... I think the temporary fix was to get longer bolts and put nuts on them...
It has been fine for a while now. The clutch is a very chattery sintered iron unsprung unit. I switched out most of the bolts to the 15mm head bolts with the serrated flanges and that seems to have fixed it. Going on 5 years now.
Ian Adams Function>Form 1990 shadow scrapped, too rusty:( 1991 Spirit R/T Scrapped, parts sold:( 1989 Turbo Caravan Daily beater with built-[I]ish [/I]engine slowly evolving into weekend turbo beater.
Old thread but will still add this...
I haven't seen it in TM's but have seen this in a couple neons. No matter what the bolts come loose. New bolts, hardware store bolts at that and no more issues. The conclusion we came to is that they were stretching like a bad head bolt and wouldn't hold the TQ. This was on a car that had many, many motor/tranny/clutch swaps. Couldn't tell you how many times the car had been apart. I thought my buddy was out of his mind when he said he was going to get new bolts because he had been told that was the problem. But it fixed it.
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