Yours is a Puma engine with cast iron block?
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What did you do to your Defender today?
- Thread starter caffn8me
- Start date
Yours is a Puma engine with cast iron block?
I've not had my engine out and stripped but it does have a cast iron block, that is sandwiched between an alloy head and camshaft housing, and an alloy ladder frame which sits on the bottom of the block and I think houses the main bearings..
Are some of the defender variants all alloy?? Or all cast iron??
What sort of power are you going to be getting out of your build.. It is the v8 you have I'm thinking..
I've been going over in my mind whether to up my hp which is currently supposed to be a modest 150.. It most probably has all the hardware in place to cope with more, perhaps an uprated turbo would help, but I'm quite happy with it both on and off road as it is..
Not a particularly well bunny atm.. But hopeful starting to shake off this bug
The weather isn't helping.. Lashing dowh earlier and now a thick mist has descended..
Anyhow back to defender related work..
Because I had nothing better to do and again it was something I was thinking on when I replaced my coolant header tank with an alloy one, I thought I'd check the caps out
The weather isn't helping.. Lashing dowh earlier and now a thick mist has descended..
Anyhow back to defender related work..
Because I had nothing better to do and again it was something I was thinking on when I replaced my coolant header tank with an alloy one, I thought I'd check the caps out
Nice to see you have a kitchen in your garage .Not a particularly well bunny atm.. But hopeful starting to shake off this bug
The weather isn't helping.. Lashing dowh earlier and now a thick mist has descended..
Anyhow back to defender related work..
Because I had nothing better to do and again it was something I was thinking on when I replaced my coolant header tank with an alloy one, I thought I'd check the caps out
View attachment 527515
Obviously not a job for the household kitchen
Ssshhhhhh...Nice to see you have a kitchen in your garage .
Obviously not a job for the household kitchen
That kitchen must be getting on for 40 yrs old...
It will most probably see me off as well
So less of your cheek
Geobloke
Posting Guru
Yes yes yes but what pressure did the caps open at???Ssshhhhhh...
That kitchen must be getting on for 40 yrs old...
It will most probably see me off as well
So less of your cheek
ahhh yes I forgot the detail as all I was really interested in was did the new cap do the same as the old black cap, cause its been fine....and yes im happy they are similar....I was only using an old bicycle pump , but id say they opened before it got to th 20 lb mark and the bubbles stopped appearing when the pressure dropped to around 10 lb.... the vacuum relief was a bit less scientific
... a good few sucks and that did operate as well
Another easy day and just playing..
As I've posted a few times before I enjoy playing with a scope.. And as I intend changing my air box and induction pipework sometime soon hopefully.. So I want some traces of the mass air flow sensor just as a comparison.. A before and after if you like..
I've spent time over the year running sensor wires into the cab so I have the ability to connect the scope easily whilst driving.. Its still work in progress but I can get to the mass air flow now
On the 2.2tdci the reported mass air flow is by way of a, switching digital voltage and it's the frequency of switching which reports the flow to the ecu.. So at the minute when you switch the ignition on the frequency on the signal wire is about 760 hz.. Then on start up and tick over at 800rpm it's a steady 4khz..which rises and falls on demand up to about 9khz
Below you can see ignition on.. Start up and tick over and then a little spike where I touched the throttle
The 4khz represents about 16g/s air flow and 9khz about 150g/s plus..that's taken from the torque app which I run at the same time
I set the time to record about 9 min and took truck for a drive recording the air flow
The mass of red that rises above the actual trace is noise or interference, which if you were fully conversant with a scopes working it may be possible to get rid of and just see a single line trace.. But for now that's it
Just to add that by changing the time of capture or zooming in on the capture to look at a smaller time frame its possible to see the cylinder pulses on the trace shown as ripples.. As in this image..
As I've posted a few times before I enjoy playing with a scope.. And as I intend changing my air box and induction pipework sometime soon hopefully.. So I want some traces of the mass air flow sensor just as a comparison.. A before and after if you like..
I've spent time over the year running sensor wires into the cab so I have the ability to connect the scope easily whilst driving.. Its still work in progress but I can get to the mass air flow now
On the 2.2tdci the reported mass air flow is by way of a, switching digital voltage and it's the frequency of switching which reports the flow to the ecu.. So at the minute when you switch the ignition on the frequency on the signal wire is about 760 hz.. Then on start up and tick over at 800rpm it's a steady 4khz..which rises and falls on demand up to about 9khz
Below you can see ignition on.. Start up and tick over and then a little spike where I touched the throttle
The 4khz represents about 16g/s air flow and 9khz about 150g/s plus..that's taken from the torque app which I run at the same time
I set the time to record about 9 min and took truck for a drive recording the air flow
The mass of red that rises above the actual trace is noise or interference, which if you were fully conversant with a scopes working it may be possible to get rid of and just see a single line trace.. But for now that's it
Just to add that by changing the time of capture or zooming in on the capture to look at a smaller time frame its possible to see the cylinder pulses on the trace shown as ripples.. As in this image..
0utcast
Shifting Up
Last weekend we went camping for the long weekend. Luckily the weather held, for the most part!
Friday we went to Goodrich Castle and Puzzlewood, staying at a campsite near Talgarth overnight.
Saturday was a visit to a waterfall and a bit of a hike, back to the same campsite at night.
Sunday was Elan Valley and the reservoirs, absolutely gorgeous area of the world. We'll be back again for the greenlanes, didn't get a chance as it was getting late in the day. Sunday night was at Coco's Wild Camp, another stunning spot.
Monday we made our way home. Stopped in Ludlow for a bit of an explore, then left as it started to rain.
All in all the weekend was amazing. Drove some amazing windy scenic roads (stayed away from motorways, what's the point??). Saw the beautiful Welsh countryside at a sedate pace, limited by the 2.5NA engine. But after a little while I didn't really care that we weren't the most efficient, going at the speed limit to get there faster, because we had no hard plan, and I was having fun just driving.
Sleeping in the back was so comfortable, warm and dry. We had an air mattress with a 2" memory foam topper on top, with a proper duvet and pillows. The curtains over the back door window and bulkhead worked great for keeping draughts out, and heat in. Insulation on the roof worked great, I assume. We were quite warm overnight anyway, and it had dropped to about 2-3degC overnight, so i'm calling that a win.
Completed since last update:
Friday we went to Goodrich Castle and Puzzlewood, staying at a campsite near Talgarth overnight.
Saturday was a visit to a waterfall and a bit of a hike, back to the same campsite at night.
Sunday was Elan Valley and the reservoirs, absolutely gorgeous area of the world. We'll be back again for the greenlanes, didn't get a chance as it was getting late in the day. Sunday night was at Coco's Wild Camp, another stunning spot.
Monday we made our way home. Stopped in Ludlow for a bit of an explore, then left as it started to rain.
All in all the weekend was amazing. Drove some amazing windy scenic roads (stayed away from motorways, what's the point??). Saw the beautiful Welsh countryside at a sedate pace, limited by the 2.5NA engine. But after a little while I didn't really care that we weren't the most efficient, going at the speed limit to get there faster, because we had no hard plan, and I was having fun just driving.
Sleeping in the back was so comfortable, warm and dry. We had an air mattress with a 2" memory foam topper on top, with a proper duvet and pillows. The curtains over the back door window and bulkhead worked great for keeping draughts out, and heat in. Insulation on the roof worked great, I assume. We were quite warm overnight anyway, and it had dropped to about 2-3degC overnight, so i'm calling that a win.
Completed since last update:
- Insulation fit to the roof and sides from the bulkhead back to the rear, including the rear wall around the door.
- Curtains have a temporary fitting solution.
- Fold down table temporarily set up. Wanted to make sure it worked before committing. Got some small changes to make before final fit and finish.
- Packed boxes, bungie cords to hold together, phone mount on windscreen, battery clock on dash, small bits.
- Second layer of insulation in the back, and first layer in the cab. There was a lot of condensation in the front in the mornings, insulation will help with that. Just didn't get the time before we headed out.
- More permanent solution for the curtains. Probably a pole for the back window, and velcro for the bulkhead.
- Replace the air mattress with some form of foam one. Deflated slowly overnight, not much fun but not a showstopper.
- Make the changes and finish the fold down table on the rear door. It worked great, just need something sturdier than paracord to hold it up, and more permanent as it was a quick easy solution for the time being.
- Find and fit a centre seat in the front. The wife didn't have as much fun in the side facing benches in the back as we had up front.
- Some form of electric and lighting. Probably use portable stuff for the time being, but just a bit more.
- Ground cover for outside the rear door. Churned up a lot of mud climbing in and out, as well as standing there to cook. I'm thinking some plywood with rubber over top. Mostly just to provide a dry stable surface to get in and out from.
- Will also look into those camper levelling blocks, they look cheap and cheerful, and may help get a bit more level so we're not sleeping head down.
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great tho read that..it makes the work/effort all worth while, and no hitches is just the icing on the cake
ive been around the Elan a couple times, and done a lane or two down that way and agree , its a special place..
Elan , hate the place 
, did my NCOs cardre there , those elephant feet grass 
, two weeks nearly killed me , if it wasn’t for doing the cardre I might of enjoyed it
, did my NCOs cardre there , those elephant feet grass , two weeks nearly killed me , if it wasn’t for doing the cardre I might of enjoyed it
Great weekend
a favourite mountain biking area when there was much less of me than there is now We learned that the campervan layout evolves and mostly due to experience rather than design at home .
We’re on our 4th ? design , each minor changes but all have made a positive difference .
0utcast
Shifting Up
Absolutely. I knew that I'd enjoy the whole thing, and my wife and daughter enjoying it and being excited about the next trip is just amazing. We can't wait to get out again!
That's pretty much our plan, small iterations each time we go on a trip. Found some small changes this time, we'll adjust, and next time we'll have some more changes. I'd prefer to do it this way rather than have decision paralysis trying to think of every single thing before we ever get to go anywhere.
Fitted heavy-duty flanges on the rear axle. Everything nearly went pear shaped when using the hi-lift jack. Luckily it only moved sideways a few inches. No damage other than a broken lense. Repaired the wiring fault for the reversing light, which took me longer than expected.
On the plus side...I found my old wheel brace, so now I have two.
On the plus side...I found my old wheel brace, so now I have two.
fitted a new fan belt after seeing the state my Disco2 one was in.
a 20minute job that requires a blood sacrifice lol
easy job but the plastic fan shroud screws had entirely rotted away...happily the local specialist had some spare second hand ones in reasonable nick
a 20minute job that requires a blood sacrifice lol
easy job but the plastic fan shroud screws had entirely rotted away...happily the local specialist had some spare second hand ones in reasonable nick
The other day I removed my center sh$tpart silencer and replaced with a stainless allmakes straight threw pipe, whilst under there I thought I had a box on the end, apparently not doh, sounds better though, picks up better and some say it will use less derv.................we'll see on the last one
And during the last couple of weeks I made myself a coffin shaped mechanics creeper/crawling board with bigger wheels for our outside rough concrete, worked a treat when doing my pipe, just need to drive the truck onto blocks of timber to lift it up a few inches