HT4100 4.1, 4.5, 4.9 Discussion, 4.1 dampener pulley bolt in Cadillac Engine Technical Discussion; Help! I need a dampener pulley retainer bolt for my 1985 4.1 Deville! I have contacted a couple of GM ...
Help! I need a dampener pulley retainer bolt for my 1985 4.1 Deville! I have contacted a couple of GM dealers to be told that has been obsoleted. I have looked all over the internet without luck and no used auto yards is going to mess with this for less than $50. Where else can I look? It is a 16mmX1.25 pitch and 30mm long.
Automobile(s): 1988 Allante' (sold), 1984 Eldorado, 84 Sedan DeVille
Re: 4.1 dampener pulley bolt
That engine if original had no retaining bolt! There was a factory installed piece of cork ( like one in a wine bottle) inserted in that hole. A bolt installed is a good idea, but was not there originally!!
I did have to get it off with a puller, but I am surprised it is just a "pressed fitting". I'm going to go ahead and put the bolt I have on to make sure. Got enough problems with this thing without the dampener falling off!
I have a 1985 Fleetwood Brougham with HT4100 and would also like a dampener bolt....was the 16MM x 30MM with 1.25 pitch end up being the right one? I cannot find combination on fastenal's website....do you have part numbers?