Hi Jim
Something to be aware of, all the later engines from Triumph, 1100 1300 1500
2000 2500 cc versions and possibly the earlier Standard Vanguard (TR)
engines have the oil flow to the rocker shaft regulated by the rear cam
bearing, there is (should be) a flat on the rear journal that connects the
upper gallery to the lower gallery once every two turns of the crank (one
turn of the cam), if this is not in alignment no amount of turning the pump
will prime the rocker gallery, you will need to slowly turn the engine over
until the oil flows, and since the connection of the gallery will provide
another exit for the oil, you may see this as a slight drop in the oil
pressure. It does take a fair amount of time for the oil to reach the
rockers due to the small volume transferred at each pass of the flat on the
cam., I would try priming the upper end through the cross head screw (use
loctite or be prepared to fish for this in the future!) or the bolt at the
rear of the head to reduce the amount of time taken to prime.
Graham.
----- Original Message -----
From "jim williams"
Subject: GT-6 No Oil to the Head
> I have a newly rebuilt GT-6 motor. Upon trying to
> start it I noticed that there was no oil through the
> rockers. I made an oil pump priming tool, spun the
> pump counter clockwise no oil yet. Tried for several
> minutes zero. Removed the bolt on the back of the
> head. Tried again nothing. Put an after market oil
> guage in the sending unit spot and got 30 lbs of
> pressure while I was spinning the pump. Machine shop
> installed a new pump. Any ideas??? It does have oil in
> the crankcase. This motor has been a problem for the
> get go. It looks like it will continue for awhile
> longer. Anything you have let me know.
> Thanks.
>
> =====
> Jim Williams
>
---
Outgoing mail is certified Virus Free.
Checked by AVG anti-virus system (http://www.grisoft.com).
Version: 6.0.709 / Virus Database: 465 - Release Date: 22/06/2004
|