About that pin: What does it do anyway?
Reading Carbon60's thread, then your experience Tyler and knowing my t-belt replacement was coming up it was weighing on my mind. Today I started it. Got everything removed, then went to examine the pin. Surprise...no pin. Norm was at the shop helping and neither he nor I recall hearing or seeing anything drop out when the idler assy was removed. I forgot to look at the pin location when it was all together. So, the assumption at this point is that it has not been in there for 100,000kms, since I did the waterpump, cam oil seal, idler and spring when it was all on the shop floor. I am thinking when I was going through it 100,000kms ago and and using the FSM for specs I did not realize it was not in place as the FSM timing belt section makes no mention of the pin.
So what does it do anyway, other then be used as a locator assist for putting in the 8mm timing belt idler pulley bolt and the spring bolt of the timing belt idler?
The idler pulley can move as the hole the spring bolt goes through is oblong and without the pin triangulating there may be the possibility of some minor movement of the plate (what little the shoulder of the two bolts would allow as both are torqued to 20lbs). Looking at the used idler assy, the plate between the idler assy and camshaft oil seal retainer (pic of the retainer I mean is on page EM-79 of the FSM) shows virtually no wear, the two bolts that go through the plate and camshaft oil seal retainer show no grooving or wear marks where the plate would be resting when everything is bolted in place.
In my brief peruse through the FSM I can not find mention of the pin. If anyone locates this section in the FSM please let me know.
Hope you don't mind this slight jack of your thread
@arnott1t but I thought it might generate some good discussion. I'm going to post up on the thread in the diesel section as well for the wider audience. If you want it moved let me know.
gb
