escary
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| posted on 2/9/06 at 05:46 PM |
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x/f engine height, sump clearance
Need help, building a mcsorley book build using 1740 crossflow with twin 40 weber carburetors coupled to type 9.
with the Mk scuttle and nose cone placed on i'm struggling with bonnet clearance, easy option is to drop engine mounts which then seem as if the
n/s will obstruct starter motor, not too bothered about starter as remove refit would only be nuts and bolts job, but sump is already a good inch
below the bottom edge of the bottom rail and i'm concerned that it'll ground out and catch the gearbox bellhousing.
I think that i've an inch still to go to give clearance for the throttle linkage and carb tops , also the sidedraught trumpets are very close
but this be easy to resolve with a bonnet cut out after sva (don't think you can get away with k & n protuding from the bonnet line)
Maybe the other alternative is to raise the scuttle and nose cone by an inch but i think it might be weird looking.
If i do have to cut the sump, how much can i take out before pick up pipe problems, don't want to dry sump (too expensive)
all help greatly appreciated
regards
ewan.
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rusty nuts
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| posted on 2/9/06 at 06:38 PM |
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How low is the lowest point on the bell housing ? my sump is about level with the lowest point, pick up can be altered to suit if you can get it
silver soldered. May pay to fit "wings" to make up lost oil capacity
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escary
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| posted on 2/9/06 at 06:44 PM |
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sump is at the moment about level
but i'm certain that there must be others who have overcome this issue.
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MikeRJ
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| posted on 2/9/06 at 07:23 PM |
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If the sump is around level with the bottom of the bellhousing, then there is no point chopping the sump down. In fact it would be a bad idea to do
so, having something whack the edge of the bellhousing hard is going to cause major damage, at least the relatively soft sump absorbs some impact,
even if it does make it leak after.
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escary
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| posted on 2/9/06 at 07:44 PM |
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sump arrrgh
gonna try another locosters' view point tomorrow, giving real thought to increasing scuttle and nose cone height to allow clearance for
40's.
i suppose if it looks ok it will be, but anyone who has a 1740 xf with 40's please let me know what you have done
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gazza285
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| posted on 2/9/06 at 08:34 PM |
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Well I've got a 1330 Crossflow, but its a 1600 block, so it's the same height. I have a dry sump and the lowest point is the bell housing,
which I believe is the same height as the sump, which is about 3/8" below the chassis. I will use hardwood skids on the two longitudinal box
sections nearest the bell housing to take the brunt of any mishaps. However I'll still need a slight bonnet bulge to clear the Magard linkage I
have fitted to my 45s. I had considered lowering the engine, but then the bell housing fouls the chassis rails (RS2000 bell housing) and I can't
be bothered moving them.
Next engine should not be a problem as it's a 1470 in a 1300 block and I intend to make a bell housing to suit a 7&1/4 clutch with a much
smaller ring gear, so the engine can be much lower.
DO NOT PUT ON KNOB OR BOLLOCKS!
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escary
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| posted on 3/9/06 at 01:51 PM |
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i'm probably already exceeding the 3/8 from the base rails.
gonna build new mounts and have a re think, wanted to retain clean bonnet line (with the exception of the k and n cut outs). Raising scuttle and nose
looks likely as it'll be straightforward to raise seat height, never even considered dry sump due to the bell housing depth, don't see the
point.
as usual, trying to keep the low in lowcost(tight scotman)
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scutter
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| posted on 3/9/06 at 06:09 PM |
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I've got a 1698cc Crossflow on dellorto's Until i found my current Westfield alloy sump I ran a chopped and welded Steel one, no problems
whilst it was fitted.
It measured 160mm from the face of the block to the lowest point, and sits the same as the westy one at 1" below the chassis rails.
ATB Dan.
Image deleted by owner
Image deleted by owner
Sorry for quality of the first pic it was on my phone.
The less I worked, the more i liked it.
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02GF74
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| posted on 3/9/06 at 07:45 PM |
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quote:
Originally posted by gazza285
Well I've got a 1330 Crossflow, but its a 1600 block,
how can that be - did you sleeve the cylinder bores? or else use 1300 crank but with 1600 rods? (I think the latter is doable?)
re: filters pocking through bonnet - people have got through SVA with that - only thing is the you cannot have wing nuts. (wait until Wed and
I'll know if my set up, which is like that, gets the thumbs
up).
by the way, if you are using twin side draught on 1300 block, you need to use ford dizzy as the bosch is too tall, incvluding the side entry cap ...
but you knew that right 
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gazza285
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| posted on 4/9/06 at 04:14 AM |
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CVH rods and flat top pistons.
DO NOT PUT ON KNOB OR BOLLOCKS!
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