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| Hatchmans 1600 Build http://www.ozdat.com.au/forum/viewtopic.php?t=30611 |
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| Author: | SR20Datsun [ Thu Apr 27, 2017 10:03 am ] |
| Post subject: | Re: Hatchmans 1600 Build |
I'm running a CAT for the SR20DET in my 1600, but I don't have to run the charcoal cannister (Go figure?) I've spoken to a few others and they were saying they aren't running a CAT. It doesn't make any difference to power if you get a low restriction version. They can clog up though! |
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| Author: | RJB510 [ Fri Apr 28, 2017 11:20 pm ] | |
| Post subject: | Re: Hatchmans 1600 Build | |
Very minor quick update. Datsun is currently at the mechanics getting some last checks before the RWC. Some things we missed were
Vented battery box only needed if your not using a sealed battery. Nearly all are sealed batteries these days. Needed a vented battery box for the boot mounted battery Breather hose for the fuel (I think) was running into the boot Needs a catalytic converter (I know WTF right as it's an L20B). Reason is because the engine number matches to an S1 (or S2 I forget) Bluebird our mech says it has to have a cat. Apparently that is the letter of the rules! Some wiring corrections Rear retractable seatbelts (we'll fit those, I think Datsport do them?) Breather hose for the fuel tank (if you mean the small one) factory routs through the boot floor and terminates in the chassis rail. This is the regulation, it has to terminate in a rail and not direct to atmosphere. Pretty sure that the cat converter is needed if that was original equipment on the L20b. You need to comply with the emissions requirements of the engine your fitting. In the case of the l20b, it was after the 1976? emissions requirements were introduced. Not sure that they ran a cat converter though. If you can find an l20b that was pre standards I'd use that as the benchmark. Wiring, well that's a necessity! You went fine retractable rear belts. Only fixed. Std oem for fronts are fixed sash also. Retractable belts are the modern luxury! Good luck. Ps. What centre consol have you fitted? It looks neat! Great work on the seat rails. That's what's needed with these cars. I'm about to fit new seats to mine when i work out how to fit them up properly! |
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| Author: | Hatchman [ Sun Apr 30, 2017 8:43 pm ] | |
| Post subject: | Re: Hatchmans 1600 Build | |
Vented battery box only needed if your not using a sealed battery. Nearly all are sealed batteries these days.
Dad spoke to Baz at Datsport and reckons fixed rear seatbelts are fine. We spoke to our mechanic and he said he'd confer with the engineer. Apparently they are a real bitch to fit in a 1600 so if we can avoid that I would be very happy!Breather hose for the fuel tank (if you mean the small one) factory routs through the boot floor and terminates in the chassis rail. This is the regulation, it has to terminate in a rail and not direct to atmosphere. Pretty sure that the cat converter is needed if that was original equipment on the L20b. You need to comply with the emissions requirements of the engine your fitting. In the case of the l20b, it was after the 1976? emissions requirements were introduced. Not sure that they ran a cat converter though. If you can find an l20b that was pre standards I'd use that as the benchmark. Wiring, well that's a necessity! You went fine retractable rear belts. Only fixed. Std oem for fronts are fixed sash also. Retractable belts are the modern luxury! Good luck. Ps. What centre consol have you fitted? It looks neat! Great work on the seat rails. That's what's needed with these cars. I'm about to fit new seats to mine when i work out how to fit them up properly! Centre console is from a 240K, we've had it for years, used to be in our old black 1600 that is now the "designated parts car". Bit of vinyl spray treatment made it come up very good. For the seat rails we just got some decent steel, bent it, drilled it and bolted the extension with high-tensile bolts to the original rails. I agree they are essential. I'm only 177cms but in a car like this my knees are knocking on the steering wheel. |
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| Author: | Hatchman [ Fri Jun 09, 2017 2:31 pm ] |
| Post subject: | Re: Hatchmans 1600 Build |
So we got the Engineers cert and the car is ready to go Mechanic put it on the dyno to give it a final tune and traces of water which seem to be coolant is coming out the exhaust. It's an L20B that was rebuilt 2 years ago and has never been driven in anger. I dearly hope it is the head gasket and not the head itself as it had a fair bit of work done to it Shattered. We were so close |
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| Author: | SR20Datsun [ Fri Jun 09, 2017 4:17 pm ] |
| Post subject: | Re: Hatchmans 1600 Build |
Fairly easy to check. Have you done a leak down test? Head gasket is an easy fix, head is not as easy as you have to find it, weld it (if you can access it), machine it and go from there. Hopefully you find out and it's an easy fix! Have you re-torqued the head? |
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| Author: | lampy [ Fri Jun 09, 2017 10:39 pm ] |
| Post subject: | Re: Hatchmans 1600 Build |
How did you know it was coolant. Engines can emit quite a bit of condensation when it's humid. I wouldn't pull the head off until your sure there is a problem |
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| Author: | Hatchman [ Sat Jun 10, 2017 11:14 am ] | |
| Post subject: | Re: Hatchmans 1600 Build | |
How did you know it was coolant. Engines can emit quite a bit of condensation when it's humid. I wouldn't pull the head off until your sure there is a problem
Dad spoke to the mechanic and he did a dye test on the engine and the results were not what he was expecting i.e. points to something being wrong. He's pretty thorough on this stuff so I think he wants to remove the head to be sure.My hope is that just to it being dormant for so long while being restored condensation has built up in the fuel tank/lines/carbs etc... and maybe that is the reason. I hope so.... |
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| Author: | Hatchman [ Sat Jun 10, 2017 11:18 am ] | |
| Post subject: | Re: Hatchmans 1600 Build | |
Fairly easy to check.
Not sure on this stuff mate, our mechanic is pretty thorough and knows his stuff (Frank at APS in Frankston). As mentioned he did a dye test which did not come back with the results he was expecting.Have you done a leak down test? Head gasket is an easy fix, head is not as easy as you have to find it, weld it (if you can access it), machine it and go from there. Hopefully you find out and it's an easy fix! Have you re-torqued the head? I'm sweating bullets on this I don't mind admitting, we've put a lot of money and effort into this little car, another big bill is not really ideal |
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| Author: | SR20Datsun [ Wed Jun 14, 2017 12:12 pm ] |
| Post subject: | Re: Hatchmans 1600 Build |
Good luck and keep us in the loop on what has happened. |
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| Author: | Hatchman [ Wed Jun 14, 2017 2:15 pm ] |
| Post subject: | Re: Hatchmans 1600 Build |
Spoke to the mech yesterday, he is of the belief it is the head gasket and has been talking with the engine builder. Said he was going to pull the head off today to take a look but I know he is really busy so not expecting much news this week which is okay |
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| Author: | Hatchman [ Thu Jun 22, 2017 9:26 pm ] |
| Post subject: | Re: Hatchmans 1600 Build |
Latest news is the mechanic is certain it's the head gasket but he has sent the head back to the engine builder to check it properly for any cracks just to be sure |
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| Author: | SR20Datsun [ Fri Jun 23, 2017 11:06 am ] |
| Post subject: | Re: Hatchmans 1600 Build |
Good. I hope it's a quick fix! |
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| Author: | MY110 [ Fri Jun 23, 2017 9:40 pm ] |
| Post subject: | Re: Hatchmans 1600 Build |
Nice rig, hope you can sort the motor soon and get it out to have some fun! |
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| Author: | Hatchman [ Mon Jul 10, 2017 10:57 am ] |
| Post subject: | Re: Hatchmans 1600 Build |
Engine head is now back from the builder and is back on the car so safe to assume nothing has gone wrong there. Currently "popping" on the first cylinder so they are going to get the rocker cover back off and check the valve clearance ![[ img ]](https://farm5.staticflickr.com/4232/35694061271_b9ce81c199_b.jpg) I think, think, we are getting very close now |
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| Author: | RJB510 [ Wed Jul 12, 2017 11:10 pm ] |
| Post subject: | Re: Hatchmans 1600 Build |
When you build an engine or setup a head. Before you bolt the rocker cover on you should always check the valve clearances. I'm assuming that they surfaced the head also? So was it a blown head gasket? What do you mean by 'popping'? Do you mean backfiring out the intake? |
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