CISON L4-175 17.5cc Mini OHV Inline 4-Cylinder 4-Stroke Water-Cooled Gas Engine Model – Reaching Speeds of Up to 8,000 RPM
SKU
$999.99
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CISON L4-175 Mini OHV Inline 4 Cylinder RC Gasoline Engine Model
This CISON L4-175 is a 17.5cc, inline 4 cylinder, 4-stroke, water-cooled L4 RC gasoline engine model. With a max speed of 8,000rpm, this engine is not only powerful but also incredibly exciting to operate. For those who love building and operating RC models, the CISON L4-175 is an ideal choice!



















Apart from some initial problems with the electric starter motor, the engine starts well and runs really smoothly with a nice voice. The intake and exhaust manifolds are truly exceptional. Some reservations for the precision of the carburettor. It would be nice to be able to have a 4 carburettor supply (of good quality) to make the engine even more sporty and performing..
Je ne peux pas en dire plus pour le moment car un problème sur 2 bielle qui on probablement un problème d'alesage quand je les serres le.moteur ne tourne plus .
Donc j'attends les bielles
Par contre le manuel de montage est un peu léger en explications et manque cruellement d'informations plus précise pour l'assemblage
Et de plus disponible qu'en anglais.
First of all the conrods came with 3 different lengths of bolts fitted this was due to the rods not being tapped deep enough (there was a bag of bolts tucked underneath the rods in the packaging which were the correct length). But I still had to purchase a tap to rectify the problem.
Secondly when I fitted the piston rings to the first piston the rings would not rotate and were stuck in the piston. On further investigation I found that there was a sharp edge on the inner edge of the piston ring, this sharp edge was on 5 out of 8 of the rings. Unfortunately when trying to remove the rings from the piston one of them broke as it was really jammed in the ring grove, the other rings I used a fine “Norton” stone to debur them. I have been trying to contact actionfigurenow since December and I am still waiting for an answer from Lucas.
Thirdly the oil pump body also had two out of the four threads which hold on the rear cover not tapped deep enough. Again I had to purchase a tap to rectify the problem.
At this point I have shelved the engine and not gone any further as I am waiting for a reply from actionfigurenow. Fortunately I am an engineer so sorting out these problems is not a big issue for me but if you are someone with little or no experience in engineering / mechanical problems then I would say this is not for you as the build manual leaves a lot to be desired.