Engine swap . 1HD-T out and rebuilt 1HD-FT in .( egr removed)
I use 1hd-t fuelpump .
Plunger stroke :
1 hd-t 1,29 - 1,35
1 hd - ft 1,52 - 1,58 (euro)
1 hd - ft 1,37 - 1,43 (aus)
Do i use 1 hd-t specs or 1 hd-ft specs ?
There isn't an official figure. I would take an average. They are all pretty close in the scheme of the timing. Those engines were designed years ago and I would think fuel has altered so much that the timing figures are a bit irrelevant. I checked my 1HD-FT engine timing and it was 0.30 retarded but when I advanced it to the official figure I did not notice much difference.
The pump may not be correct in other areas however but if it runs OK, does not black smoke and returns at least 25 mpg on a run I would think that's OK. If you get a lot of white smoke when engine running cold but then clears on getting hot you may be a bit retarded.
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